NSK for Space Enviroment

CAT. No.E1258b 2011 C-6 Printed in Japan NSK Ltd. 2011

Bearings, Ball Screws and NSK Linear Guides, for Special Environments

NSK Web site http://www.nsk.com

Bearing

s,BallS

crews

andN

SK

LinearG

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pecialE

nvironm

ents

NSK used environmentally friendly paper and printing methods for this publication.

1Bearings, Ball Screws and NSK Linear Guides, for Special Environments

The SPACEA Seriesresponding to extreme,special environments

The SPACEA Series is adaptable to a wide variety ofapplications, including machinery for semiconductors, LCDs,hard disk production, pharmaceutical/cosmetics production,and ceramics/chemistry/optical apparatuses. The Seriesconsists of optimum bearings, ball screws and NSK LinearGuides that can be applied to demanding operatingenvironments.

Applicable in a variety of operating conditions, responding to a broad range of

Bearings

Ball S

crews/N

SK

Linear Guid

esA

pp

endices

The NSK SPACEA Series was developed with vacuum lubrication technology, materials technology,and thin-film technology for space exploration equipment.Our lineup of bearings, ball screws and NSK Linear Guides for special environments will meet thestrict requirements for harsh operating conditions, offering high functionality and quality. The high-quality SPACEA Series is applicable in vacuum, corrosive, clean, high-temperature, non-magnetic,and radiation-resistant environments, among others.

Food processing machinery Medical instrument

Food processing machinery

Woodworking machinery

Tire buffs

Welding lines

Graphite processing machinery

Laser machinery

Cleaning equipment forsemiconductors, LCD panels,PDPs, and hard disks

Food processing machinery Conveyors Chemical plants Plating facilities Etching equipment

Transporters in clean rooms Production machinery for

semiconductors and LCDpanels, and conveyors inmachinery

Hard disk production machinery Solar cell production machinery

Electron beam rendering devices Electron beam aligners Inspection equipment

Kilns High-temperature

conveyors

Semiconductorproduction machinery

Kiln cars

Production machinery for semiconductors,LCD panels, PDPs, and hard disks

Vacuum evaporation devices Vacuum robots Space exploration equipment

applications.

Table of Contents

SPACEA SeriesP27

Global Network P45

Research and DevelopmentP67

SPACEA Bearings A1A74

SPACEA Bearings A1A2

Inventory A3A4

Selection Guide A5A8

Listed by Operating Environment A9A12

Dimensions, Accuracy and Availability A13A30

Manufacture Introduction A31A68

Applications of SPACEA Series Bearings A69A74

SPACEA Series Ball Screws and NSK Linear Guides B1B30

SPACEA Series Ball Screws and NSK Linear Guides B1B2

InventoryB3B4

Selection Guide B5B6

Types and Specifications B7B8

Dimensions and AvailabilityB9B12

Product InformationB13B28

Applications ofSPACEA Series Ball Screws and NSK Linear Guides B29B30

Appendices C1C24

Specification Inquiry C25

Sanitaryenvironments

Application

Dust-contaminatedenvironments

Application

Non-magneticrequirement

Application

Corrosiveenvironments

Application

Cleanenvironments

Application

High-temperatureenvironments

Application

Vacuumenvironments

Application

SPACEATM Series

32

NSK Global NetworkNSKs global network is the key to our ability to develop innovative productsthat incorporate the latest technologies.

The network connects each sales branch, distribution center, production facility, and technology center and enables us to

gather the latest information from each location.

Data is instantly accessible to every part of the network, resulting in products of the highest quality.

Our global system also includes activities such as receiving and processing orders, shipping products, and supplying

technical support.

No matter how difficult or complex the challenge, NSK is able to

respond immediately.

NSKs global network means excellent productsand superior customer service.

NSK has established a communication system that

links the major markets of the world in Europe, Asia,

Japan, and the Americas. We use this highly

developed system to share information, in real time,

related to changes and trends in each market. As a

result, we can react quickly to meet changing

customer needs, supplying the best, high-quality

products. Our global network makes NSK a truly

global company. We are able to transcend

borders and other restrictions to meet the

needs of our customers around the globe.

54

Technical office.....13

Plant.....63

Sales office.....113

Representative office.....7

Headquarters.....6EUROPE/AFRICA ASIA/OCEANIAU.K.GermanyFranceItalySpainPolandNorwayTurkeySouth Africa

1 5 2 1 ThailandSingaporeIndonesiaMalaysiaPhilippinesVietnamIndiaAustraliaNew ZealandJapanChinaSouth KoreaTaiwan

1 2 3 11 3 1 2 2

1 3 21 2 2 4

1 14 3 1 1 1 1

1 1 3 51 41 1

1 22 36 5

THE AMERICAS

1 10 16 1 1

U.S.A.CanadaMexicoBrazilPeruArgentina

1 7 6 1

2 2 1

3

6

11 5 1

11

Titanium alloy bearings

Lubrication Unit NSK K1

NSK Research and DevelopmentExtensive commitment to research and development through a network of four basesin the United States, Europe, and Asia, with Japan as the nucleus.

NSKs R&D centers concentrates on enhancements in the core technologies

of tribology, materials technology, analytical technology, and mechatronics.

These are the basis for the development of NSKs current and future

product lineups. We have been working intensely on basic technologies that

will be required to develop the next generation of products.

Lubrication technologyClean lubricant DFOClean greases: LG2, LGUSpecial solid lubricantVacuum high-temperature solid lubricant Materials technologyHigh corrosion-resistant, long-life stainless steel: ES1High corrosion-resistant, high hardness stainless steel: ESZHigh corrosion-resistant, non-magnetic stainless steel: ESAFiber-reinforced, high corrosion-resistant fluororesin materialsHigh corrosion-resistant ceramic materialsHigh hardness titanium alloys Evaluation technologyIn-vacuo rotation/direct-acting testerClean environment rotation/direct-acting testerCorrosive environment bearing endurance testerDust-contaminated environment direct-acting tester

SPACEA Series bearings, ball screws and

NSK Linear Guides are technology-driven

products that continue to evolve, supported by

advanced technologies developed in the NSK

R&D centers. Lubrication technology, materials

technology, and evaluation technology are

integrated to create new SPACEA products.

Test rig for bearings for vacuum conditions

SPACEA Series bearings

Bearing Technology Center(Japan)

American Technology Center(USA)

European Technology Centre(England)

76

Vacuumenvironments





Cleanenvironments

A Inventory A3A4

B Selection Guide A5A8

C Listed by Operating Environment A9A12

D Dimensions, Accuracy and Availability A13A30

E Specifications, Operating Instructions, and Technical Data

1. Stainless Steel BearingsA31A32

2. Stainless Steel Angular Contact Ball Bearings A33

3. Stainless Steel Self-Aligning Ball BearingsA34

4. Molded-Oil Bearings A35A36

5. Hybrid BearingsA37A38

6. Corrosion-Resistant Coated Bearings (Nickel coating)A39A40

7. High Corrosion-Resistant, High Hardness Stainless Steel ESZ BearingsA41A42

8. High Corrosion-Resistant, Non-Magnetic Stainless Steel ESA Bearings A43A44

9. All-Ceramic Bearings (Oxide-based ceramics) A45A46

10. Aqua-BearingHigh Corrosion-Resistant Resin BearingsA47A48

11. High Corrosion-Resistant All-Ceramic Bearings (Carbide-based ceramics) A49A50

12. LG2/LGU Grease-Packed Bearings (For use in normal atmosphere only) A51A52

13. DL2 Clean Grease-Packed Bearings (From normal atmosphere up to vacuum) A53A54

14. Clean Lubricant DFO Bearings (E-DFO/V-DFO)A55A56

15. YS Bearings with MoS2 Self-Lubricating Cages A57A58

16. High-Temperature Grease-Packed Bearings (For use in normal atmosphere only) A59A60

17. YS High-Temperature Bearings with Spacer JointsA61A62

18. SJ High-Temperature Bearings with Solid Lubrication A63A64

19. Completely Non-Magnetic Titanium Alloy BearingsA65A66

20. Molded-Oil Bearings for Dust-Contaminated Environments A67A68

F Applications of SPACEA Series Bearings A69A74

Wide range of product variation with high quality and high functionality

TM

NSKs SPACEA Series bearings for special environments have a wide array of product variation

applicable to vacuum environments, corrosive environments, clean environments, high-temperature

environments, dust-contaminated environments and non-magnetic requirement.

The SPACEA Series offers high quality and high performance in severe operating environments,

throughout a wide range of applications and in all kinds of machines and apparatuses.

Optimal bearings for particular applications can be found in the SPACEA Bearing Selection Guide on pages A5A8.

SPACEA Series Bearings

Table of Contents of SPACEA Bearings

Bearings

A2A1

SPACEA Se ries Bearings

TM

A SPACEA Series Bearings

Non-magnetic(relative permeability 1.01 or less)

High corrosion-resistant, non-magnetic stainless

steel ESA bearings

Completely non-magnetic(relative permeability 1.001 or less)

Completely non-magnetic titanium alloy bearings

All-ceramic bearings

Inventory

NSKs SPACEA Series bearings for special environments are optimal for applications in operating environments that are

too severe for ordinary bearings, such as semiconductor/FPD/hard-disk production machinery, food processing machinery,

medical/cosmetics production machinery, and ceramics/chemistry/optical apparatuses.

Water environments Stainless steel bearings

Molded-Oil bearings

Hybrid bearings

Corrosion-resistant coated bearings

(Nickel coating)

Alkali and weak acid environments High corrosion-resistant, high hardness stainless steel

ESZ bearings

High corrosion-resistant, non-magnetic stainless steel

ESA bearings

All-ceramic bearings (oxide-based ceramics)

Strong acid and reactive gas environments Aqua-Bearinghigh corrosion-resistant resin

bearings

All-ceramic bearings (carbide-based ceramics)

Corrosive environments

Clean DL2 clean grease-packed bearings

Clean lubricant DFO bearings

YS bearings with MoS2 self-lubricating cage

High-temperature YS high-temperature bearings with spacer joints

SJ high-temperature bearings with solid lubrication

Non-magnetic High corrosion-resistant, non-magnetic stainless ESA bearings


Vacuum environments

Normal atmosphere, room temperature LG2/LGU clean grease-packed bearings

Normal atmosphere, high-temperature/vacuum, medium-temperature

DL2 clean grease-packed bearings

Vacuum, high-temperature YS bearings with MoS2 self-lubricating cage


Clean environments

Normal atmosphere, high-temperature KPM high-temperature grease-packed bearings

Vacuum, high-temperature YS high-temperature bearings with spacer joints



Normal atmosphere, dust-contaminated Molded-Oil bearings



YS high-temperature bearingswith spacer joints

Aqua-Bearinghigh corrosion-resistant resin bearings

Stainless steel bearings


Clean grease-packed bearings

SJ high-temperature bearingswith solid lubrication

Completely non-magnetictitanium alloy bearings

Molded-Oil bearings

Bearings

SP

AC

EA

S

eriesB

earings

A4A3

B SPACEA Bearing Selection Guide-I

Weak acid and alkalienvironments

Strong acid and reactivegas environments

Classification of aircleanliness: Class 1001 000.

Up to 400C

Up to 350C

Non-magnetic (relativepermeability 1.01 or less)

Completely non-magnetic(relative permeability 1.001

or less)

Classification of aircleanliness: Class 10100.


SJ high-temperature bearings withsolid lubrication

YS high-temperature bearings withspacer joints

High corrosion-resistant, non-magneticstainless steel ESA bearings


High-humidityenvironments

Water, sterilization liquid

Stainless steel bearings

Water spray, immersedMolded-Oil bearings

Hybrid bearings

Corrosion-resistant coated bearings (Nickel coating)

High corrosion-resistant, high hardnessstainless steel ESZ bearings


All-ceramic bearings (oxide-based ceramics)Strong acid and reactive gas environments

Aqua-Bearinghigh corrosion-resistant resin bearings

All-ceramic bearings(carbide-based ceramics)

Clean lubricant E-DFO bearings

Clean lubricant V-DFO bearings

Bearings with self-lubricating YSfluororesin cages

Degree of vacuum Operating temperatureOperating environment Product name Pa C

10-4 10-8 100 200 300 400

Operating conditionsCleanliness(1) Limiting rotational speed Limiting loaddmn (2) P/CH

(3)

100 100 10 20 000 50 000 150 000 1% 2% 5%1 000

10-8 Pa

10-8 Pa

10-6 Pa

10-4 Pa

10-6 Pa

10-7 Pa

200C

200C

200C

350C

80C

60C

150 000

20 000

20 000

20 000

20 000

20 000

20 000

50 000

1%

1%

2%

2%

2%

5%

5%

5%

5%

5%

2%

Page A26

Page A28

Page A30

Page A28

PageA15A18

Page A20

Page A22

Page A24

Page A23

Page A21

Page A23

Page A27

PageA53A54

PageA57A58

PageA63A64

PageA61A62

PageA31A32

PageA35A36

PageA37A38

PageA39A40

PageA41A42

PageA43A44

PageA45A46

PageA47A48

PageA49A50

PageA43A44

PageA65A66

LZZH DL2

LZZHFD4

LZZHFD

LZZHMST4

U HSJ

LZZHMSS2

HMA

L11HDDU

LZZYT3

LZZYNIT3

ESZ

ESA

SZ1

LPT3 (QT3)

SR1

ESA

LT

PageA55A56

(1) Cleanliness may vary depending on operating conditions, surrounding structures and other factors.(2) dmn = (bore diameter of bearing, mm+outer diameter of bearing, mm) 2 rotational frequency (min)-1

(4) The bearing number for inquiry can be used as a reference before finalizing thespecifications. The number will enable NSK to identify the summarized specifications ofyour bearing and provide you with a price estimate.A formal bearing number will be provided after the specifications are finalized.

represents the basic bearing number

Select the group ofbearings appropriate foryour operating environmentand application.

Find the bearings that suityour operating conditions.

Select the bearing mostappropriate in terms ofavailability and price.

Follow the operatinginstructions that areprovided.

Determine the bearingnumber for making yourinquiry.

1 to 5%

Low

High

Low

High

Low

High

Low

High

Low

High

Price

comparison

SpecificationsOperatinginstructions

Technical data

Bearing number

for inquiry(4)

Availability

1. Select the most appropriate bearing with the following selection flow chart.

Normalatmosphere

Bearings

Bearing

Selection

Guid

e

400C

150C

100C

150C

150C

(3) The limiting load is estimated based on the endurance (total rotational frequency) corresponding to 107 as a guideline.P: equivalent load (N), CH: load rating (N) of the stainless bearing(The durability is different by operating environment or conditions.)

150C

150C

Notes

Vac

uum

Cle

anH

igh-

tem

per

atur

eN

on-m

agne

ticW

ater

Cor

rosi

ve

For details, pleaserefer to page A53.


For details, please refer topage A57.




A6A5

Remarks: Please consult NSK about a unidentified pointabout beaing specification.

B SPACEA Bearing Selection Guide-II

10-4 Pa

20 000 2%

5%

5%

PageA25A26

Page A27

Page A28

Page A29

Page A30

Page A28

Page A23

Page A23

Page A68

PageA57A58

PageA55A56

PageA53A54

PageA51A52

PageA59A60

PageA63A64

PageA61A62

PageA43A44

PageA65A66

PageA45A46

PageA67A68

LZZHMST4

LZZHFD4

LZZHFD

LZZH DL2

HZZ LG2LZZH LG2 (LGU)

LZZ (C3) H KPM

U HSJ

LZZHMSS2

ESA

LT

SZ1

L11DDU

10-6 Pa

10-8 Pa

10-8 Pa

10-7 Pa

200C

200C

200C

230C

400C

120C (LGU)70C (LG2)

50 000

50 000

20 000

20 000

5%

5%

1%

2%

1 to 5%

Low

High

Low

High

Low

High

Degree of vacuum Operating temperatureOperating environment Product name Pa C

10-4 10-8 100 200 300 400

Operating conditionsCleanliness(1) Limiting rotational speed Limiting loaddmn (2) P/CH

(3)

100100 10 20 000 50 000 150 000 1% 2% 5%

1 000

Price

comparison

SpecificationsOperatinginstructions

Technical data

Bearing number

for inquiry(4)

Availability

For use in normal atmosphere only

From normal atmoshere up to vacuum

For use in normal atmosphere only, up to 230C

From normal atmosphere up to 10-8 Pa, up to 400C

From normal atmosphere up to 10-8 Pa, up to 350C

Non-magnetic (relative permeability 1.01 or less)

Completely non-magnetic (relativepermeability 1.001 or less)

Dust, wood waste, etc.

LG2/LGU clean grease-packed bearings


Clean lubricant E-DFO bearings

Clean lubricant V-DFO bearings

YS bearings with MoS2self-lubricating cages

High-temperature KPM grease-packed bearings


YS high-temperature bearingswith spacer joints



All-ceramic bearings(oxide-based ceramics)

Molded-Oil bearings

Low outgas and low particle emissions

Normalatmosphere

Bearings

Bearing

Selection

Guid

e

(1) Cleanliness may vary depending on operating conditions, surrounding structures and other factors.(2) dmn = (bore diameter of bearing, mm+outer diameter of bearing, mm) 2 rotational frequency (min)-1

(4) The bearing number for inquiry can be used as a reference before finalizing thespecifications. The number will enable NSK to identify the summarized specifications ofyour bearing and provide you with a price estimate.A formal bearing number will be provided after the specifications are finalized.

represents the basic bearing number

(3) The limiting load is estimated based on the endurance (total rotational frequency) corresponding to 107 as a guideline.P: equivalent load (N), CH: load rating (N) of the stainless bearing(The durability is different by operating environment or conditions.)

350C

150C

150C

Notes

Hig

h-te

mp

erat

ure

Dus

t-co

ntam

inat

edC

lean

Non

-mag

netic

A8A7

Remarks: Please consult NSK about a unidentified pointabout beaing specification.



60C





Select the group ofbearings appropriate foryour operating environmentand application.

Find the bearings that suityour operating conditions.

Select the bearing mostappropriate in terms ofavailability and price.

Follow the operatinginstructions that areprovided.

Determine the bearingnumber for making yourinquiry.

1. Select the most appropriate bearing with the following selection flow chart.

Bearings forvacuum environments

C SPACEA Bearings Listed by Operating

Bearings for vacuum environments are base products of the NSK SPACEA Series for special environments, which alsoincludes bearings suitable for operating environments such as clean, high-temperature environments, and non-magneticrequirement.

EnvironmentB

earingsB

earingsfor

vacuumand

corrosiveenvironm

ents

A10A9

High corrosion-resistant bearings are applicable in corrosive environments such as water, weak acid and alkali, andstrong acid and reactive gas.

High corrosion-resistant bearings include stainless steel bearings, Molded-Oil bearings, and corrosion-resistant coatedbearings (Nickel coating) for water environments; ceramic bearings, ESA bearings and ESZ bearings for weak acid andalkali environments; and ceramic bearings and the Aqua-Bearing for strong acid and reactive gas environments.

Bearings forcorrosive environments

Degree ofvacuum

Cleanenvironments

High-temperature

environments

Non-magnetic

requirement

Up to 104 Pa Up to 105 Pa Up to 106 Pa Up to 107 Pa Up to 108 Pa Water environments

High humidit


WaterWeak acid and alkali

environmentsStrong acid and reactive

gas environments

E-DFO/V-DFO bearings

YS bearings with MoS2 self-lubricating cage

(up to 200C)

High corrosion-resistant, non-magnetic stainless steel ESA bearings (up to 150C)

Titanium alloy bearings (up to 150C)

YS high-temperature bearings with spacer joints (up to 350C)

High corrosion-resistant, high hardness stainless

steel ESZ bearings

Corrosion-resistant coated bearings

(Nickel coating)

Hybrid bearings

Stainless steel bearings Molded-Oil bearings

High corrosion-resistant, non-magnetic stainless

steel ESA bearings

Ceramic bearings (oxide-based ceramics)

Ceramic bearings (carbide-based ceramics)

Aqua-Bearing high corrosion-resistant resin bearings

SJ high-temperature bearings with solid

lubrication (up to 400C)


To find the bearings suitable for respective operating temperatures and degrees of vacuum, see the Scope of Applications of Bearings for Clean Environments on A56.

To find the bearings suitable for respective operating temperatures and degrees of vacuum, see the Scope of Applications of Bearings for Clean Environments on A53.

Cleanliness Class 100-1 000 Class 100-compliant Class 10-compliant

Low outgas and particle emissions

From normal atmosphere

up to vacuum

For use in normal

atmosphere only

E-DFO/V-DFO bearings

DL2 clean grease-packed bearing

LG2/LGU clean grease-packed bearing

YS bearing with MoS2 self-lubricating cage

C SPACEA Bearings Listed by OperatingBearings for

clean environments

Bearings for clean environments consist of clean grease-packed bearings, solid lubrication bearings, and clean lubricantDFO bearings.

Clean grease-packed bearings are classified into bearings exclusively for use in normal atmosphere and bearings forvacuum environments. The solid lubrication bearings include MoS2 solid lubricant or solid lubricant (fluororesin). TheMoS2 lubricant features long life; the fluorine lubricant, cleanliness.

The clean lubricant E-DFO/V-DFO bearings represent a new concept in clean bearings, offering both long life andcleanliness.

EnvironmentB

earingsB

earingsfor

corrosiveand

cleanenvironm

ents

A12A11

Bearings for high-temperature environments consist of high-temperature, grease-packed bearings and MoS2 solid-lubrication bearings.

The high-temperature, grease-packed bearings are made exclusively for use under normal atmospheric pressureconditions in high-temperature environments (up to 230C). They are packed with the NSK long-life fluorine grease, KPM,which has a life span five times as long as that of commercially available fluorine grease.

For use in high-temperature, vacuum environments, SJ/YS high-temperature bearings with solid lubrication are recommended.

Bearings for high-temperature environments

Bearings for non-magnetic requirement are classified into non-magnetic (relative permeability 1.01 or less) bearings andcompletely non-magnetic (relative permeability 1.001 or less) bearings. Both bearings are harder and more resistant tocorrosion than conventional stainless steel or beryllium-copper alloys.

Bearings fornon-magnetic requirement

For dust-contaminated environments, bearing steel Molded-Oil bearings are recommended. These bearings are moreeconomical than stainless steel Molded-Oil bearings.Note: Stainless steel Molded-Oil bearings are recommended for corrosive environments.

Bearings for dust-contaminated environments

Up to 230C

Non-magnetic (relative permeability 1.01 or less)Non-magnetic level

Normalatmosphere

From normalatmosphere up to

vacuum

For use in normalatmosphere only,

up to 60C

Completely non-magnetic (relative permeability 1.001 or less)

Operatingtemperature

Normalatmosphere

Vacuum

Up to 350C Up to 400C

KPM grease-packed bearings

SJ high-temperature bearings with solid lubrication(Atmospheric pressure: up to 108 Pa)

YS high-temperature bearings with spacer joints(up to 108 Pa)

Ceramic bearings(carbide-based ceramics)

Titanium alloy bearings

Molded-Oil bearings for dust-contaminated environments

High corrosion-resistant, non-magnetic stainless steel ESA bearings

1. Stainless steel-based SPACEA Series Bearings

D Dimensions, Accuracy and Availability

Accuracy of boundary dimensions and running accuracyNote: The dimensional tolerance of the bore and outside diameter for corrosive coating bearings may deviate from the JIS0 standard for coating

thickness (maximum 5 m in diameter).

Dimensional accuracy of bore diameter of inner ring Unit: m

2.5 10 0 8 10 8 6 610 18 0 8 10 8 6 618 30 0 10 13 10 8 830 50 0 12 15 12 9 9

7, 8, 9 0, 1 2, 3, 4

Over Incl High Low Max Max

Dimensional accuracy of outside diameter of outer ring Unit: m

6 18 0 8 10 8 6 10 618 30 0 9 12 9 7 12 730 50 0 11 14 11 8 16 850 80 0 13 16 13 10 20 10

7, 8, 9 0, 1 2, 3, 4 2, 3, 4Over Incl High Low Max Max

Dimensional accuracy of inner/outer ring width Unit: m

2.5 10 0 120 1510 18 0 120 2018 30 0 120 2030 50 0 120 20

Over Incl High Low Max

Running accuracy Unit: m

2.5 10 10 1510 18 10 1518 30 13 2030 50 15 25

Over Incl High Low Max

Bearing internal clearance and the standard value

Internal clearance of bearings is the amount that one ring, either the inner or outer, canbe displaced relative to the other ring when one is fixed and the other is displaced eithervertically or horizontally. The amount of displacement in the radial plane is called radialclearance, while the amount of displacement in the axial plane is called axial clearance.Clearance is measured by adding a specific measuring load to a bearing in order toobtain a stable measured value. As a result, the measured clearance value, or measuredinternal clearance, becomes slightly larger than the theoretical internal clearance value(also known as geometrical clearance in the case of a radial bearing). The difference isknown as the elastic deformation volume, or approach amount. Theoretical internal clearance is derived by compensating the increment of clearancecaused by elastic deformation.Internal clearance of bearings prior to installation is usually defined by the theoreticalinternal clearance value.

Radial internal clearance of nominal bearing bore diameter Unit: m

Over Incl Min Max Min Max Min Max Min Max Min Max

10 only 0 7 2 13 8 23 14 29 20 3710 18 0 9 3 18 11 25 18 33 25 4518 24 0 10 5 20 13 28 20 36 28 4824 30 1 11 5 20 13 28 23 41 30 5330 40 1 11 6 20 15 33 28 46 40 6440 50 1 11 6 23 18 36 30 51 45 73

Clearance compensation volume Unit: m

10 18 24.5 3~4 4 4 4 418 50 49 4~5 5 6 6 6

Radial internal clearance of extra-small ball bearings Unit: m

ClearanceMin Max Min Max Min Max Min Max Min Max Min Max

0 5 3 8 5 10 8 13 13 20 20 28

Clearance number MC1 MC2 MC3 MC4 MC5 MC6

Clearance correction volume Unit: m

Clearance number MC1 MC2 MC3 MC4 MC5 MC6

1 1 1 1 2 2

Remarks 1. Standard clearances are MC3 values.2. When used as measured internal clearance, the correction values in the following table will be added.

Remarks When using the above values as measured clearance, the radial clearance increment caused by the measuring load will be compensated asthe clearance compensation values listed in the following table. For compensation values for C2 clearance, the smaller value will be applied tothe smallest clearance and the larger value shall be applied to the largest clearance.

Remarks The measuring load for an extra-small ball bearing is 4.4 N.

Radial clearance Axial clearance

of SPACEA Series Bearings

Nominal bearingbore diameter

d (mm)

Single plane mean borediameter deviation (Deviation

of single bore diameter)dmp

Mean bore diameter variation(Out-of-roundness)

Vdp Mean bore diameter variation(Cylindricity)VdmpDiameter series

Nominal bearingoutside diameter

D (mm)

Single plane mean outsidediameter deviation (Deviation

of single outside diameter)Dmp

Mean outside diameter variation(Out-of-roundness)

VDp Mean outsidediameter variation

(Cylindricity)Vdmp

Diameter series

Open type bearings Sealed/Shielded


d (mm)

Deviation of single ring widthBS or CS

Ring width variation(Max-min)VBS or VCS


d (mm)

Radial runout of assembledbearing inner ring

kia

Radial runout of assembledbearing outer ring

kea


d (mm)

Clearance

C2 CN C3 C4 C5


d (mm)Over Incl

Measuring load(N)

Clearance compensation value

C2 CN C3 C4 C5

Clearance correctionvalue

Bearings

Dim

ensions,Accuracy

andA

vailability

A14A13

D Dimensions, Accuracy and Availability of SPACEA Series BearingsB

earingsD

imensions,A

ccuracyand

Availab

ility

A16A15

1

1.2

1.5

2

2.5

3

4

5

B

r

r

B

r

r

D Dd d

10121315171922111314171922121416192224281720242630 22.225

15

192226301821242832

34556673455673.54567895678

107.1423456894568

10

0.10.150.150.20.30.30.30.10.150.150.30.30.30.10.150.20.30.30.30.30.20.30.30.60.60.4

0.15

0.30.30.30.60.20.30.30.30.6

MR106MR126

686696606626636

MR117MR137

687697607627

MR128MR148

688698608628638689699609629639R6

6700

680069006000620067016801690160016201

423608920

1 1401 9201 9902 800

388460

1 0001 3701 9902 800

463696

1 0701 9002 8002 8503 8901 1302 1002 8503 8904 3502 830

729

1 460 2 290 3 900 4 350

789 1 630 2 460 4 350 5 800

10 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 0009 3708 330

10 00010 0009 0908 5707 6909 440

10 000

10 0009 3708 3307 500

10 0009 0908 3307 5006 810

213046569699

1401923506899

14023345395

140140190

56100140190210140

36

73 110 190 210

39 82

120 210 290

6

7

8

9

9.525

10

12

33444565566776788678899

1013

789

1011121316

89

10111113141619

11.51.62.522.632.32.532.533.52.63.52.542.532.5445452.534444552.534454556

0.050.050.10.10.050.150.150.080.10.150.150.150.150.080.150.20.150.10.10.150.150.150.150.150.20.10.10.10.150.150.20.20.30.10.150.150.150.150.20.20.30.3

681MR31

691MR41X

681X691X601X

682MR52

692MR62MR72

602682X692X

MR82X602X

MR63683

MR83693

MR93603623633

MR74MR84

684MR104

694604624634

MR85MR95

MR105MR115

685695605625635

8181

1209696

202281144144281281328328177328475469177265336475486486538

1 100217336545604815815

1 1101 140

185367367609609916

1 1301 4701 990

10 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 000

44644

1014

77

14141616

8162323

8131623242426551016273040405556

91818303045567399

Boundary dimensions

1-1. Stainless steel bearings (Bore Diameter 112 mm)

Bearing number for inquiry(1)

A31A32 pagesBearings

SpecificationsTechnical data

Availability

Open Shielded Rubbersealed

Chamferdimension

(min.)r

(mm)

Limitingspeeds

(referencevalue)(min1)

Limitingload(3)

(referencevalue)

(N)

Width

B(mm)

Basicbearing

number(2)Outsidediameter

D(mm)

Borediameter

d(mm)

Boundary dimensions Availability

Open Type (example) Shielded Type (example)Rubber Sealed Type (example)


Chamferdimension

(min.)r

(mm)

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Width

B(mm)

Basicbearing


D(mm)

Borediameter

d(mm)

Basic bearing number



-H-MA

-H-ZZMA NS7

-H-DDMA NS7

Open Type:

Shielded Type:

Rubber Sealed Type:

Dynamicload rating,

CH(reference

value)(N)

Stocked as standardinventory items

Dynamicload rating,

CH(reference

value)(N)

Symbol of availability: Stocked as standard inventory items.(4) Blank entry indicates non-stock items.Notes (1) The actual bearing number of delivered products may include additional symbols or codes for NSK purposes.

(2) A basic bearing number with an asterisk () indicates that NSKs ES1 steel has been adopted for the bearings inner and outer ring bearing steel material.(3) The limiting load is a pure radial load that has been calculated based on a bearing life of 107 rotations.

(4) Orders placed for large quantities of standard inventory items may incur some delay in actual delivery. Furthermore, products shipped from Japan may incur

additional delays.

Remarks 1. Open-type bearings do not include grease. Customers need to ensure that an optimum lubricant is made available for use with these bearings.

2. The radial internal clearance for bearings with bore diameters smaller than 10 mm is MC3. The radial internal clearance for bearings with bore diameters of

10 mm or larger is CN. See the radial internal clearance tables on page A14 for further details.

A17


earingsD

imensions,A

ccuracyand

Availab

ility

A18

15

17

20

25

30

35

40

45

50

55

60

4565567767867899

10789

1011121316

89

1011131416191012131517191113141719221214161922172019

22.632.32.5333.52.63.542.5344542.534444552.534545563455663455673.54567565

56.57.56.16.27.58.28.57.18.59.57.28.19.5

10.610.511.5

8.29.2

10.311.612.513.51518

9.210.211.612.51516182211.213.61517192212.214.61619222513.615.6182225192321

96202281144144281328328177328469177265475486486538217336545604815815

1 1101 140

185367367609916

1 1301 4701 990

423608920

1 1401 9201 990

388460

1 0001 3701 9902 800

463696

1 0701 9002 8001 1302 1001 460

0.60.80.80.60.60.80.60.90.80.90.90.60.80.90.8110.60.610.811110.60.60.811111.50.60.81.11.21.21.50.60.81.11.21.51.50.80.81.11.51.51.11.51

0.050.150.150.080.10.150.150.150.080.150.150.10.10.150.150.150.10.10.10.10.150.150.20.20.30.10.150.150.150.20.20.30.30.10.150.150.20.30.30.10.150.150.30.30.30.10.150.20.30.30.20.30.3

F681XF691XF601X

F682MF52F692MF72F602

F682XF692XF602XMF63F683F693MF93F603F623MF74MF84F684

MF104F694F604F624F634MF85MF95

MF105F685F695F605F625F635

MF106MF126

F686F696F606F626

MF117MF137

F687F697F607F627

MF128MF148

F688F698F608F689F699

F6800

10 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 00010 000

4101477

1416168

16238

132324242610162730404055569

181830455673992130465696991923506899

14023345395

14056

10073

1.5

2

2.5

3

4

5

6

7

8

910

B

r

r

B

r

r

D Dd d

r

r

D d

B1 B2

D2

21242832352326303540273237424732374247523755624462725068807585809090

10095

110

4579

11457

1012

479

1214

479

1215

41316

51417

615181619162018211822

0.20.30.30.30.60.20.30.3 0.30.60.20.30.3 0.610.20.30.30.610.2110.311.10.311.111.111.11.11.51.11.5

6702680269026002620267036803690360036203670468046904600462046705680569056005620567066006620667076007620767086008620860096209601062106011621160126212

797 1 760 3 700 4 750 6 500

849 2 240 3 900 5 100 8 150

885 3 400 5 400 7 950

10 900 931

3 800 5 950 8 550

11 900 969

11 300 16 500

1 590 13 600 21 800

2 140 14 200 24 800 17 800 26 600 18 500 29 800 24 000 37 000 25 000 44 500

8 3307 6906 9706 3806 0007 5006 9706 3805 7605 2606 3805 7605 2604 8304 4705 2604 8304 4704 1603 8904 4703 5203 2603 7903 0902 8003 3302 7702 5002 5002 3002 3002 1402 0601 9301 9301 760

40 88

180 230 320

42 110 190 250 400

44 170 270 390 540

47 190 290 420 590

48 560 820

79 680

1 090 100 710

1 240 890

1 330 920

1 490 1 200 1 850 1 250 2 220

Boundary dimensions

Boundary dimensions

Availability

Availability


Chamferdimension

(min.)r

(mm)

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Limitingspeeds


Limitingload(2)

(referencevalue)(N)

Width

B(mm)

Basicbearing

number(2)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm)

Borediameter

d(mm)

Outsidediameter

D(mm)

Width

B1(mm)

FlangedOutsidediameter

D2(mm)

FlangedWidth

B2(mm)

Chamferdimension

(min.)r

(mm)

Dynamicload rating,

CH(reference

value)(N)

Dynamicload rating,

CH(reference

value)(N)

1-1. Stainless steel bearings (Bore Diameter 1560 mm)







-H-MA

-H-ZZMA NS7

-H-DDMA NS7

Open Type:

Shielded Type:

Rubber Sealed Type:

1-2. Stainless steel bearings (with flanged outer ring)




Basic bearing number -H-ZZMA NS7

Open Type (example) Shielded Type (example)Rubber Sealed Type (example)



Symbol of availability: Stocked as standard inventory items.(4) Blank entry indicates non-stock items.Notes (1) The actual bearing number of delivered products may include additional symbols or codes for NSK purposes.



additional delays.

Remarks 1. Open-type bearings do not include grease. Customers need to ensure that an optimum lubricant is made available for use with these bearings.

2. The radial internal clearance for the bearings on this page is CN. See the radial internal clearance tables on page A14 for further details.

Symbol of availability: Stocked as standard inventory items.(3)

Notes (1) The actual bearing number of delivered products may include additional symbols or codes for NSK purposes.

(2) The limiting load is a pure radial load that has been calculated based on a bearing life of 107 rotations.


additional delays.

Remarks: The radial internal clearance for bearings with bore diameters smaller than 10 mm is MC3. The radial internal clearance for bearings with bore diameters of



earingsD

imensions,A

ccuracyand

Availab

ility

A20A19

D d

B

r1

r

r

r

r

D d

B

r

r

D d

B

r

1 730 2 840 4 250 4 600 3 850 4 900 6 900 5 200 5 600 8 750

11 600 9 150

13 100 6 700

222630242832323535404247475255

0.30.30.60.30.30.60.30.60.30.60.610.611

690060006200690160016201600262026003620360046204600562056006

9 3708 3307 5008 3307 5006 8106 3806 0005 7605 2604 8304 4704 1603 8903 520

68968

109

1110121214121513

10

12

15

17

20

25

30

1722262828323535374247475247

68

1012

15

17

20

25

30

678879

1110

912141215

9

0.30.30.30.30.30.30.60.30.30.610.610.3

0.150.150.150.150.150.150.30.150.150.30.60.30.60.15

706A708A

7000A7001A

7902A57002A7202A7003A

7904A57004A7204A7005A7205A

7906A5

10 000 10 000

8 330 7 500 6 970 6 380 6 000 5 760 5 260 4 830 4 470 4 160 3 890 3 890

86 140 210 230 190 240 340 260 280 430 580 450 650 330

303235404752

91011121415

0.60.60.60.611

120012011202120312041205

4 7504 8506 4506 8008 500

10 400

7 5006 8106 0005 2604 4703 890

230240320340420520

101215172025

0.0060.0170.0060.0190.0080.0210.0080.0210.0100.0230.0110.024

Boundary dimensions Availability

Availability

Availability

Chamferdimension

(min.)r

(mm)

Chamferdimension

(min.)r1

(mm)

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Limitingspeeds(3)


Limitingload(4)

(referencevalue)

(N)

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Radialinternal

clearance

(mm)

Width

B(mm)

Basicbearing

number(2)

Basicbearing

number(2)

Outsidediameter

D(mm)

Borediameter

d(mm)

Boundary dimensions

Chamferdimension

(min.)r

(mm)

Width

B(mm)

Outsidediameter

D(mm)

Borediameter

d(mm)

Dynamicload rating,

CH(reference

value)(N)

For use inNormal

atmosphereand Clean

environments

For use inVacuum,

Clean andHigh-

temperatureenvironments

Boundary dimensions

Chamferdimension

(min.)r

(mm)

Width

B(mm)

Basicbearing


D(mm)

Borediameter

d(mm)

Dynamicload rating,

CH(reference

value)(N)

2. Stainless steel Angular Contact Ball Bearings




-H-

-H-U264

-H-

A33 pagesBearings


3. Stainless steel Self-Aligning Ball Bearings



A34 pagesBearings


4. Molded-Oil bearings


L11-H-DDUBasic bearing number



2311039190442102512044210582904823065320512508240080390

11054086420

120590120560




For use in Normal atmosphere and Clean environments:

For use in Vacuum, Clean and High-temperature environments:





additional delays.

Remarks: Customers need to ensure that an optimum lubricant is made available for use with these bearings.





additional delays.

Remarks: Customers need to ensure that an optimum lubricant is made available for use with these bearings.



(2) A basic bearing number with an asterisk () indicates that NSKs ES1 steel has been adopted for the bearings inner and outer ring bearing steel material.(3) Limiting speed of these bearings has been calculated for 25 C operating conditions. Limiting speeds will be slower for operating conditions of 35 C or

higher. (Refer to page A35 for further details.)



additional delays.

Remarks: The radial internal clearance for the bearings on this page is CN. See the radial internal clearance tables on page A14 for further details.


earingsD

imensions,A

ccuracyand

Availab

ility

B

r

r

D d

r

D d

B

r

r

D d

B

r

10

12

15

17

20

25

30

10

12

15

17

20

25

30

35

40

45

50

55

60

263028323235354037424742475255

898

109

111012

91214

9121513

0.30.60.30.60.30.60.30.60.30.610.30.611

600062006001620160026202600362036904600462046905600562056006

1 0001 0001 000

900850800760700700640590590550510470

788787

11095

130100160100150210110170230220

2630283232353540424747525562627268807585809090

10095

110

898

109

111012121412151316141715181619162018211822

0.30.60.30.60.30.60.30.60.610.611111.111.111.111.11.11.51.11.5

60006200600162016002620260036203600462046005620560066206600762076008620860096209601062106011621160126212

1 0001 0001 000

900850800760700640590550510470430410370370330330300300280270250250230

788787

11095

130100160150210170230220330270430280490350530370590480740500890

35374046546072

9101112141516

0.60.60.60.6111

CD200CD201CD202CD203CD204CD205CD206

1 000900800700590510430

87110130160210230330

10121517202530

Boundary dimensions AvailabilityChamfer

dimension(min.)

r(mm)

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Width

B(mm)

Basicbearing

number(2)Hybrid

bearings

Corrosion-resistantcoated

bearings

Outsidediameter

D(mm)

Borediameter

d(mm)

Boundary dimensions

AvailabilityChamfer

dimension(min.)

r(mm)

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Width

B(mm)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm)

Boundary dimensions

AvailabilityChamfer

dimension(min.)

r(mm)

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Width

B(mm)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm)

5. Hybrid bearings




Basic bearing number LZZ-YT3

7. High Corrosion-Resistant, High Hardness Stainless Steel ESZ Bearings

Deep groove ball bearings

Bearing number for inquiry(1)A41A42 pages

BearingsSpecificationsTechnical data

Available on a production-by-order basis

6. Corrosion-resistant coated bearings (Nickel coating)




Basic bearing number LZZ-YNIT3

Basic bearing numberESZ

Deep groove ball bearings with aligning housing rings


Basic bearing numberESZ

Items available onshort lead times


Dimensions, Accuracy and Availability of bearings refer to the following Clause 6.

A22A21

Symbol of availability: Items available on short lead times.(4)



(4) Orders placed for large quantities of items that are available on short lead times may incur some delay in actual delivery. Furthermore, products shipped from

Japan may incur additional delays.

Remarks: The radial internal clearance for the bearings on this page is range from CN (minimum clearance) to C3 (maximum clearance). See the radial internal

clearance tables on page A14 for further details.

Symbol of availability: Available on a production-by-order basisNotes (1) The actual bearing number of delivered products may include additional symbols or codes for NSK purposes.


Remarks: The radial internal clearance for the bearings on this page is C3. See the radial internal clearance tables on page A14 for further details.

See the Symbol of Availability, Notes, and Remarks below the following bearing nomenclature for Bearings with an Aligning Housing Ring.


earingsD

imensions,A

ccuracyand

Availab

ility

r

D d

B

r

r

D d

B

r

r

D d

B

r

10

12

15

17

20

25

222628324247525562

7889

1214151316

0.30.30.30.30.61111

60860006001600260046204620560066206

1 000 1 000 1 000

850 640 590 510 470 430

56 78 87 95

150 210 230 220 330

8101215

20

25

30

2219262842476268

7588

12141615

0.30.30.30.30.6111

6086800600060016004620462066008

1 0001 0001 0001 000

640590430370

8

10

12

203040

14073

190210390540820710

2226302428322832353035403742474247

68968

1079

117

10129

12149

12

0.30.30.60.30.30.60.30.30.60.30.30.60.30.610.30.6

69006000620069016001620169026002620269036003620369046004620469056005

1 0001 0001 0001 0001 000

900930850800850760700700640590590550

2239432443583747653951815479

1005985

0.04~0.12

0.05~0.14

0.05~0.14

0.05~0.14

0.05~0.15

0.06~0.16

Boundary dimensions

AvailabilityChamfer

dimension(min.)r

(mm)

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Width

B(mm)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm)

Boundary dimensions

AvailabilityChamfer

dimension(min.)r

(mm)

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Width

B(mm)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm)

AvailabilityLimitingspeeds


Limitingload(3)

(referencevalue)

(N)

Radialinternal

clearance

(mm)

Boundary dimensions(2)

Chamferdimension

(min.)r

(mm)

Width

B(mm)

Basicbearingnumber Ceramics

Specialglass balls

Outsidediameter

D(mm)

Borediameter

d(mm)

10. Aqua-Bearing-High Corrosion-Resisitant Resin Bearings

Bearing number for inquiry(1) A47A48 pagesBearingsSpecificationsTechnical data

11. High Corrosion-Resisitant All-Ceramic Bearings (Carbide-based ceramic)



Basic bearing numberCeramic balls:

Special glass balls: Basic bearing number

L-PT3

L-QT3

8. High corrosion-resistant, non-magnetic stainless steel ESA bearings


Basic bearing numberESA

9. All-Ceramic Bearings (Oxide-based ceramic)




Basic bearing number SZ1





A24A23






Remarks: The radial internal clearance for bearings with bore diameters smaller than 10 mm range from MC3 (minimum clearance) to MC5 (maximum clearance). The

radial internal clearance for bearings with bore diameters of 10 mm or larger range from CN (minimum clearance) to C4 (maximum clearance). See the radial

internal clearance tables on page A14 for further details.



(2) Tolerances: bore diameter: 0 mm to +0.05 mm; outer diameter: 0.05 mm to 0 mm




This bearing product is available on a production-by-order basis.

Please contact NSK for more information.






Remarks: The radial internal clearance for bearings with bore diameters smaller than 10 mm range from MC3 (minimum clearance) to MC5 (maximum clearance). The

radial internal clearance for bearings with bore diameters of 10 mm or larger range from CN (minimum clearance) to C4 (maximum clearance). See the radial

internal clearance tables on page A14 for further details.


earingsD

imensions,A

ccuracyand

Availab

ility

r

D d

B

r

r

D d

B

r

68

1079

111213131416131517191719221619222417192226302124283228323530354032374247424752

2.544

2.544454555566567567855689568

1079

117

1012

79

1214

91215

0.10.150.150.10.10.150.20.20.20.20.30.150.20.30.30.30.30.30.20.30.30.30.20.30.30.30.60.30.30.30.60.30.30.60.30.30.60.30.30.610.30.61

MR63693623

MR74684694604624695605625686696606626697607627688698608628689

680069006000620068016901600162016902600262026903600362036804690460046204690560056205

1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000

823261027404055455673465696996899

1405395

140140

5673

110190210

82120210290180230320190250400170270390540290420590

3

4

5

6

7

8

9

10

12

15

17

20

25

9111213111314161315171914171922161922241720242622.2251922263021242832242832352630354032374247374247524247556262726880

4445545555665567567856787.1425689568

10579

1157

101279

121479

121579

131614171518

0.10.150.20.20.150.20.20.30.150.20.30.30.150.30.30.30.20.30.30.30.20.30.30.60.40.30.30.30.60.30.30.30.60.30.30.30.60.30.30.30.60.30.30.610.30.30.610.30.31111.111.1

684694604624685695605625686696606626687697607627688698608628689699609629R6

68006900600062006801690160016201680269026002620268036903600362036804690460046204680569056005620568066906600662066007620760086208

1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000

930920830

274040553045567346569699506899

1405395

140140

56100140190140

73110190210

82120210290

88180230320110190250400170270390540190290420590190300560820680

1 090710

1 240

4

5

6

7

8

9

9.525

10

12

15

17

20

25

30

35

40

Boundary dimensions

AvailabilityChamfer

dimension(min.)

r(mm)

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Width

B(mm)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm) Boundary dimensions

AvailabilityChamfer

dimension(min.)

r(mm)

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Width

B(mm)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm)

12-1. LG2 Clean Grease-Packed Bearings (For use in normal atmosphere only)


-H-ZZ LG2Basic bearing number



12-2. LG2/LGU Grease-Packed Bearings (For use in normal atmosphere only)


Basic bearing number LZZ-H LG2 (LGU)

13. DL2 Clean Grease-Packed Bearings (From normal atmosphere up to vacuum)


Basic bearing number LZZ-H DL2





A26A25

Symbol of availability: Itemsavailable on short lead times.(3)

Notes

(1) The actual bearing number of delivered

products may include additional symbols

or codes for NSK purposes.

(2) The limiting load is a pure radial load that

has been calculated based on a bearing

life of 107 rotations.

(3) Orders placed for large quantities of items

that are available on short lead times may

incur some delay in actual delivery.

Furthermore, products shipped from


Remarks:

The radial internal clearance for bearings with

bore diameters smaller than 10 mm is MC3.

The radial internal clearance for bearings with

bore diameters of 10 mm or larger is CN. See

the radial internal clearance tables on page

A14 for further details.

Symbol of availability: Stocked as standard inventory items.(3)Notes (1) The actual bearing number of delivered products may include additional symbols or codes for NSK purposes.

(2) The limiting load is a pure radial load that has been calculated based on a bearing life of 107 rotations.(3) Orders placed for large quantities of standard inventory items may incur some delay in actual delivery. Furthermore, products shipped from Japan may incur

additional delays.Remarks: The radial internal clearance for bearings with bore diameters smaller than 10 mm is MC3. The radial internal clearance for bearings with bore diameters of



earingsD

imensions,A

ccuracyand

Availab

ility

r

D d

B

r

r

D d

B

r

9111213111314161315171914171922161922241720242622.2251922263021242832242832352630354032374247374247524247556262726880

4445545555665567567856787.1425689568

10579

1157

1012

79

1214

79

1215

79

131614171518

0.10.150.20.20.150.20.20.30.150.20.30.30.150.30.30.30.20.30.30.30.20.30.30.60.40.30.30.30.60.30.30.30.60.30.30.30.60.30.30.30.60.30.30.610.30.30.610.30.31111.111.1

684694604624685695605625686696606626687697607627688698608628689699609629R6

68006900600062006801690160016201680269026002620268036903600362036804690460046204680569056005620568066906600662066007620760086208

1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000

900 1 000

930850800930850760700760700640590640590550510550510470430410370370330

274040553045567346569699506899

1405395

140140

56100140190140

73110190210

82120210290

88180230320110190250400170270390540190290420590190300560820680

1 090710

1 240

1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000

900 1 000

930850800930850760700760700640590640590550510550510470430410370370330

1016162212182229182238392027395621385657224257785629457887324987

110357495

1304478

10016068

10015021076

11017023077

120220330270430280490

4

5

6

7

8

9

9.525

10

12

15

17

20

25

30

35

40

9111213111314161315171914171922161922241720242622.225 192226302124283224283235263035403237424737424752424755626272688075

4445545555665567567856787.1425689568

10579

1157

1012

79

1214

79

1215

79

13161417151816

0.10.150.20.20.150.20.20.30.150.20.30.30.150.30.30.30.20.30.30.30.20.30.30.60.40.30.30.30.60.30.30.30.60.30.30.30.60.30.30.30.60.30.30.610.30.30.610.30.31111.111.11

684694604624685695605625686696606626687697607627688698608628689699609629R6

680069006000620068016901600162016802690260026202680369036003620368046904600462046805690560056205680669066006620660076207600862086009

1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000

900 1 000

930850800930850760700760700640590640590550510550510470430410370370330330

1016162212182229182238392027395621385657224257785629457887324987

110357495

1304478

100160

68100150210

76110170230

80120220330270430280490350

4

5

6

7

8

9

9.525

10

12

15

17

20

25

30

35

4045

Boundary dimensionsChamfer

dimension(min.)

r(mm)

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Width

B(mm)

Basicbearing

number(2)

YS Bearingswith MoS2

Self-Lubricating

Cages

YS High-TemperatureBearings with

SpacerJoints

Outsidediameter

D(mm)

Borediameter

d(mm)

Boundary dimensions E-DFO Beaarings V-DFO Beaarings

Availability

Chamferdimension

(min.)r

(mm)

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Availability

Limitingspeeds


Limitingload(2)

(referencevalue)

(N)

Width

B(mm)

Basicbearingnumber

Outsidediameter

D(mm)

Borediameter

d(mm)

B

15. YS Bearings with MoS2 Self-Lubricating Cages




Basic bearing number LZZ-HMST4

17. YS High-Temperature Bearings with Spacer Joints




Basic bearing number LZZ-HMSS2

14. Clean Lubricant DFO Bearings






LZZ-HFD4

LZZ-HFD

E-DFO Beaarings:

V-DFO Beaarings:





A28A27

Symbol of availability: Items available on short lead times.(3)Notes (1) The actual bearing number of delivered products may include additional symbols or codes for NSK purposes.

(2) The limiting load is a pure radial load that has been calculated based on a bearing life of 107 rotations.(3) Orders placed for large quantities of items that are available on short lead times may incur some delay in actual delivery. Furthermore, products shipped from

Japan may incur additional delays.Remarks: The radial internal clearance for bearings with bore diameters smaller than 10 mm is MC3. The radial internal clearance for bearings with bore diameters of



Available on a production-by-order basis. Blank entry indicatesnon-stock items.Notes




(2) A basic bearing number with an asterisk

() indicates that NSKs ES1 steel hasbeen adopted for the bearings inner and

outer ring bearing steel material.









Remarks:

The radial internal clearances for the bearings

on this page are listed below. See the radial

internal clearance tables on page A14 for

further details.

Bearings with a self-lubricating cage:

Bore diameters smaller than 10 mm: 0.008

mm to 0.023 mm.

Bore diameters of 10 mm or larger: C3

Bearing with spacer joints:

Bore diameters smaller than 10 mm: 0.014

mm to 0.029 mm.

Bore diameters of 10 mm or larger: C4


earingsD

imensions,A

ccuracyand

Availab

ility

r

D d

B

r

r

D d

B

r

222630283232353540424755

7898

109

111012121413

0.30.30.60.30.60.30.60.30.60.611

1 000 1 000 1 000 1 000

900850800760700640590470

56 78 87 87

110 95

130 100 160 150 210 220

0.020~0.080

0.020~0.080

0.025~0.090

0.025~0.090

0.025~0.090

0.028~0.096

0.030~0.106

8

10

12

15

17

20

30

9111213111314161315171914171922161922241720242622.2251922263021242832242832352630354032374247374247524247556262726880

4445545555665567567856787.1425689568

10579

1157

1012

79

1214

79

1215

79

131614171518

0.10.150.20.20.150.20.20.30.150.20.30.30.150.30.30.30.20.30.30.30.20.30.30.60.40.30.30.30.60.30.30.30.60.30.30.30.60.30.30.30.60.30.30.610.30.30.610.30.31111.111.1

684694604624685695605625686696606626687697607627688698608628689699609629R6

68006900600062006801690160016201680269026002620268036903600362036804690460046204680569056005620568066906600662066007620760086208

(C3) (C3) (C3) (C3) (C3) (C3) (C3) (C3) (C3) (C3)

1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000 1 000

930920830

274040553045567346569699506899

1405395

14014056

10014019014073

11019021082

12021029088

180230320110190250400170270390540190290420590190300560820680

1 090710

1 240

4

5

6

7

8

9

9.525

10

12

15

17

20

25

30

35

40

60860006200600162016002620260036203600462046006

Boundary dimensionsChamfer

dimension(min.)

r(mm)

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Width

B(mm)

Basicbearing


D(mm)

Borediameter

d(mm)

Availability

Availability

Limitingspeeds


Limitingload(3)

(referencevalue)

(N)

Radialinternal

clearance

(min)

Basicbearing

number(2)

Boundary dimensions

Chamferdimension

(min.)r

(mm)

Width

B(mm)

Outsidediameter

D(mm)

Borediameter

d(mm)

16. High-Temperature Grease-Packed Bearings (For use in normal atmosphere only)


Basic bearing number LZZ(C3)-H KPM

18. SJ High-Temperature bearings with solid librication


19. Completely Non-Magnetic Titanium Alloy Bearings A65A66 pagesBearingsSpecificationsTechnical data

Basic bearing number -H-SJU-




A30A29


Notes




(2) The radial internal clearance for bearings

with bore diameters smaller than 10 mm is

MC3. The radial internal clearance for

bearings with bore diameters of 10 mm or

larger is CN. However, some of these

bearings may also have a radial internal

clearance of C3, which is indicated as so

with parentheses in the Availability

column. See the radial internal clearance

tables on page A14 for further details.














This bearing product is available on a production-by-order basis.

Please contact NSK for more information.

Operating Instructions and Notes

Aus

teni

te s

tain

less

ste

el

Mar

tens

ite

stai

nles

s st

eel

Lith

ium

-bas

ed

grea

se

1. Stainless Steel Bearings

E

Stainless steel bearings, the standard products of the NSK SPACEA Series for special environments, are suitable

for high-humidity environments.

ES1

Highcorrosionresistance Outperforms SUS440C bearings

Outperforms SUS440C bearingsEquivalent with SUS440C bearings

NSK High Corrosion-Resistant Stainless Steel ES1NSK high corrosion-resistant stainless steel ES1 is expanding to use for stainless steel bearings.Normal

atmosphere Corrosive

Operatingenvironments

(up to 80C) (high-humidity environments)

Product Specifications Representative structure

Performance

Immersion rolling fatigue lifeOutperforms SUS440C in durability

ES1 SUS440C

SUS440C ES1

Number of stress repetitions, cycles x 105

Cum

ulat

ive

failu

re p

rob

abili

ty, %

1 10 100 1 000 10 0001

10

50

90

99.9

Test sample: 18 10 mm(#800 emery paper, passivated)Test solution: 5% NaCl solutionImmersion time: 8 hours (room temperature)

Salt spray test (JIS Z 2371)Test solution: 5% NaCl solutionTest time: 1 hourTemperature: 35C

ES1 SUS440C

Applications: Equipment used in high-humidity environments: food processing,cleaning, chemical processing, fishery equipment

Material Hardness, HRC Corrosion resistance(1) Features

NSK high corrosion-resistant stainless steel ES1 5862 NSK-developed steel

Martensite stainless steel SUS440C 5862 Ordinary stainless steel

Bearing steel SUJ2 6064 Ordinary steel for bearings

Corrosion resistance of ES1Outperforms SUS440C in corrosion resistance

Test bearings: 51305Balls: CeramicsSpeed: 1 000 min1

Load: 980N

For use in normal atmospheric conditions only. Bearings stocked as standard inventory items are prepacked with NS7 (lithium-based) grease. Bearing should not be unpacked until immediately before mounting. See the tables of SPACEA bearing nomenclature on pages A15 through A18 for the limiting loads and limiting rotational speeds. The performance of bearing is affected by environments and conditions. Bearings can not be used in certain corrosive

environment and conditions. Confirm environment and conditions where bearings are used. All comments referencing certain values or degrees of performance in this catalog are intended to be used as a reference

only. NSK provides this guide As Is without warranty of any kind, either expressed or implied.

Features

For use in normal atmosphere only, grease lubrication

Higher corrosion resistance than bearing steel

Open Type, Shielded Type, and Contact-seal Type are available (see A15A18)

Highhardness

Long life

Note (1) Comparative assessment between three kinds of materials

Specifications, Operating Instructions, and Technical Data for SPACEA Series Bearings

Bearings

Stainless

SteelB

earings

A32A31

Open Type, Shielded Type, Sealed Type

Outer/Inner rings Martensite stainless steel

Balls Martensite stainless steel

Cage Polyamide resin or stainless steel

Lubricant Lithium-based grease

Shields/Seals Austenite stainless steel/Nitrile rubber

Specifications

Structure

(Open Type bearings do notcome with packed grease.)

2. Stainless Steel Angular Contact Ball Bearings

E Specifications, Operating Instructions, and Technical Data for SPACEA Series BearingsB

earingsS

tainlessS

teelBearings

A34A33

StandardinventoryFor use in Normal atmosphere and Clean environments

For use in Vacuum, Clean and High-temperature environments

3. Stainless Steel Self-Aligning Ball Bearings StandardinventoryFor use in High corrosion-resistant stainless steel ES1

Normal atmosphere and Cleanenvironments

Vacuum, Clean and High-temperature environments

Features

Specifications of Bearings

Outperforms standard bearing steel in terms of corrosion resistance. Achieves high running accuracy to ISO tolerance class P5. Supplied as bearings for universal matching with light preload when mounted in a face-to-face (DF) arrangement or

back-to-back (DB) arrangement. Stainless steel angular contact ball bearings suitable for cleanroom environments in normal atmospheric conditions.

Stainless steel angular contact ball bearings for cleanroom, vacuum, and high-temperature environments. Suitable foruse in vacuum equipment or cleanroom applications operating under high-temperature conditions up to 230C.

Features

Highly resistant to corrosion through the use of ES1 highly corrosion-resistant stainless steel.

Self-aligning with the ability to accommodate misalignment of the axis and housing ranging from 4 to 7 degrees.

Application environment Normal atmosphere and Clean environments Vacuum, Clean and High-temperature environments

Contact angle

Arrangement

Preload

Accuracy

Outer/Inner rings, Balls

CageMaterial

30 (symbol: A) or 25 (symbol: A5)

Martensite stainless steel

Natural PEEK resin (symbol:T4N) or Stainless steelPolyamide resin (Cage symbol: TYN)

Universal arrangement (single row)

Light preload

P5

Specification conventionally:Stainless steel SUS440C

A neutral salt spraytest result

A neutral salt spraytest result

SUS440C ES1

Corrosion outbreak There is no corrosionoutbreak

New development specification:High corrosion-resistant stainless steel ES1

Applications: Liquid-crystal bases cleaning equipment, film cleaning systems, etching equipment,conveyance equipment


Bearing should not be unpacked until immediately before mounting. Apply a coating of grease most appropriate for bearings used in normal atmospheric conditions or cleanroom environments

after cleaning the bearings and removing the anti-corrosion agent. Apply a coating of grease most appropriate for bearings used in vacuum, cleanroom, or high-temperature environments.

These bearings have already been degreased and have already been washed to remove the anti-corrosion agent. See the tables of SPACEA bearing nomenclature on page A19 for the limiting loads and limiting rotational speeds. All comments referencing certain values or degrees of performance in this catalog are intended to be used as a reference



Bearing should not be unpacked until immediately before mounting. Apply a coating of grease most appropriate for the bearing after cleaning the bearings and removing the anti-corrosion agent. See the tables of SPACEA bearing nomenclature on page A19 for the limiting loads and limiting rotational speeds. All comments referencing certain values or degrees of performance in this catalog are intended to be used as a reference


0 500 1 000 1 500

Time, h

Grease-lubricatedbearings

Molded-OilTM

bearings

0 500 1 000 1 500

Time, h

Grease-lubricatedbearings

Molded-OilTM

bearings

4. Molded-Oil BearingsMolded-oil bearings, made of stainless steel, are lubricated with NSKs original oil-impregnated material,

Molded-oil, and are suitable for corrosive and dust-contaminated environments in normal atmosphere.

Corrosive

(up to 60C) (water environments)

Dust-contaminated

Durability in water-immersed conditionsMolded-Oil bearings have an operating life that is more thantwice as long as that of grease-lubricated bearings.

Durability under wet conditionsMolded-Oil bearings have an operating life that is more thantwice as long as that of grease-lubricated bearings.

Portion containing high proportion of polyolefinPolyolefin is used for packaging food in supermarkets,replacing dioxin-generating vinyl chloride.

Portion containing high proportion of lubricating oilThe lubricating oil is mineral oil-based.

100 mClose-up ofMolded-Oil

Test bearings: 6 000 Axial load: 29.4 NSpeed: 1 000 min1 Water exposure: 0.8cm3/minRadial load: 79.4 N

Operatingenvironments

Normalatmosphere

Features

Molded-Oilprovides continuous supply of lubrication oil

Grease-free property with no oil refilling keeps operating environments clean

Operating life more than twice as long as grease lubrication, in water or dust-contaminated environments

Contact-seal Type available in standard inventory (see A20)

Molded-OilBearings

Grease-free

Lubricated by Molded-Oil Operating environments arekept free of grease

Operating life is more than twice aslong as that of grease lubrication,in water or dust-contaminatedenvironments

Corrosive/Dust-contaminatedenvironments

Maintenance-free

Continuous supply oflubricating oil by Molded-Oil

No need to refill oil

Performance

Test bearings: 6 000 Axial load: 29.4 NSpeed: 1 000 min1

Radial load: 79.4 N

E Specifications, Operating Instructions, and Technical Data for SPACEA Series BearingsB

earingsM

olded

-Oil

Bearings

A36A35

Bea

ring

stee

lM

old

ed-o

il

Nitr

ile r

ubb

erS

oft

stee

l

Product Specifications Representative structure

Applications: Semiconductor cleaning equipment, liquid-crystal bases, hard-diskcleaning equipment, food processing machinery, various conveyor lines

Open Type, Shielded Type, Sealed Type

Outer/Inner rings Martensite stainles

Documents

NSK for Space Enviroment