TILTING PAD - John Crane/media/J/Johncrane_com/Files/Products...the dynamic characteristics of a tilting pad journal bearing. ... Bore type/Load direction 5x52 deg/ between ... Tilting

11

IntroductionTilting pad journal bearings offer the optimum in rotor stability of all slide bearing types due to their exceptional stiffness and damping characteristics.

Tilting pad journal bearings are therefore ideal for use loads e.g. turbines, turbocompressors, pumps and highspeed gearboxes.

Basic DesignThe John Crane standard tilting pad journal bearing consists of a steel housing and five journal pads which are supported/pivoted centrally.

This enables shaft rotation in either direction. The pads are manufactured from steel and coated with a high quality white metal lining.

TILTING PADJOURNAL BEARINGS

Technical Specification

2

TILTING PAD JOURNAL BEARINGS

To meet today's stringent quality requirements and associatedcertification standards, John Crane tilting pad journal bearingsmust pass strict control and test procedures.

All functional dimensions are measured and analysed with aComputer Aided Quality Assurance System and materialcertificates are issued for each single production batch. In-house ultrasonic testing ensures a perfect bond betweensteel and the white metal coating, while crack detection on all in-house manufactured pads is achieved by dye penetration testing.

All quality control procedures can be documented on individualcertificates and each bearing can be marked in accordance withindividual customer requirements.

Inspection And Quality Control

Instrumentation

All John Crane bearings can be supplied with temperaturesensors such as Thermocouples or Resistant TemperatureDetectors (RTDs). RTDs are available as single or doublePT100 types (see page 16).

The use of temperature sensors permits permanent control of bearing temperatures. This guarantees higheroperational safety.

The calculation reflecting pressure development in thehydrodynamic surface is the result of solving the ReynoldsDifferential Equation on the basis of the following assumptions: ■ The lubricant shows 'Netownian behavior' with respect to its

viscosity■ The lubricant cannot be compressed■ All generated heat is dissipated by the lubricant

Based on the Reynolds flow equation together with a subsequent energy equation a model has been developed that takes account of the blending of freshly added oil and oil leaving the hydrodynamic surfaces. Numeric solutions for the differential equation, reflecting the characteristic values for friction, oil flow, maximum pressure, max temperature, oil film thickness as well as the dynamic characteristics are recorded in tables within our calculation programs.

John Crane's bearing program determines all required operating characteristics of the bearing including: ■ Load capacity■ Film thickness■ Power loss■ Required oil flows and associated temperatures■ Stiffness and damping characteristics

Calculation Of Tilting Pad Bearings

The lubricant gap shape for tilting pad journal bearings can bedescribed by the profile RB/CR for the centric operation ofthe shaft and when the pads are not tilted.(DIN 31657)

RB = RB - RJ = 1+ eB

CR CR CR

Besides the radial bearing clearance, CR (one-half the diameterclearance) the profiling dimension has a decisive influence onthe dynamic characteristics of a tilting pad journal bearing.Optimum profiling values range from 1.43 to 2.22.Internationally, the profile is also described by the preload value.

m = 1- CR

CR + eB

The connection between profiling and the preload value corre-sponds to the relationship:

RB = 1CR 1 - m

Optimum preload values range from 0.3 to 0.55. Preload values below 0.3 are not recommended because at this level,the stability of the bearing could be negatively affected.

R B

Shaft

RJ

e B

CRTilting pad

Housing

Center ofpad curvature

Bearing and shaftcenter point duringcentric operation

Tilting Pad Journal Bearings Profiling And Preload Value




3

Tilting Pad Journal Bearings Calculation Example

Customer: Sample customerDepartment: developmentCustomer-Reference: 516604Date of enquiry: 26.02.2008Drawing-No.: catalogue typeJCBT-Order:Bearing type : _K_T S6 300/515x330.3JCBT-Reference: LB5678aDate of calculation: 26.02.08/12:21Author: Uwe Klein

Bore type/Load direction 5x52 deg/ between padsTilting point centerBearing diameter [mm] 300 H6Width of pads [mm] 270Shaft diameter [mm] 299.525 h5Mean bearing clearance (cold/warm) [mm] 0.503 / 0.403Mean relative clearance (cold/warm) [1/1000] 1.675 / 1.345Excentricity/Pad radius [mm] 0.15 / 150.15Preload value (cold/warm) [-] 0.374 / 0.426Profile factor (cold/warm) [-] 1.597 / 1.744

Speed [RPM] 5000Sliding-speed [m/s] 78.5Load [N] 162000Specific load [MPa] 2Maximum hydrodynamic pressure [MPa] 6.45

Oil type/Oil density ISO VG 46 / 0.86Rate of oil flow [l/min] 204Oil pressure before/in the bearing [bar] 1.5 / 0.3Oil supply temperature [Deg C] 45Oil temperature raise [Deg C] 20Mixing factor [-] 0.75Average bearing temperature [Deg C] 71.1Average viscosity [Pa s] 0.0116Maximum oil film temperature [Deg C] 89.9

Sommerfeld-Number [-] 0.596Power loss [kW] 114.58Minimum/Permissible film thickness [mm] 0.071 / 0.049Reynolds-No./critical Reynolds-No. [-] 1176 / 853

Shaft displacement:Perpendicular to load direction [mm] 0.000In direction of load [mm] 0.147

Stiffness and damping coefficients:Cxx [N/mm] 1747570Cxy [N/mm] 0Cyx [N/mm] 0Cyy [N/mm] 3178457Dxx [Ns/mm] 2513.6Dxy [Ns/mm] 0Dyx [Ns/mm] 0Dyy [Ns/mm] 4157.5

Oil supply nozzles (Number x diameter) 25 x 3.6 mmFlow factor of nozzles [-] 0.8



4


Bearing Bore Configuration Selection Table

••••••

••••••

••••••

•••••••

••••

••••••••

•••••••••

•

••

••

••

••

••••

••••

••••• = Very High • = LowValues shown in parentheses represent maximum values. In individual applications and after consultation with our design and technical support team, these may be permitted.

Cylindrical

Lemon-bore

3 Lobe

Offset Halves

4 lobe

4 tilting pad

5 tilting pads

Peripheral Speed Surface pressure1MPa =1N/mm2

Sommerfeldnumber

Stiffness /damping

Relative costs Applications

0...30 (35) m/s

25...70(80) m/s

30...90(100) m/s

20...90(100) m/s

30...90(100) m/s

30...100m/s

30...100(120) m/s

0.2...4.5 (5) MPa

0.2...3.5 (4) MPa

0.1...3.0 (3.5) MPa

0.2...3.5 (4.0) MPa

0.1...2.0 (2.5) MPa

0...2.5 (3.0) MPa

0...3.0 (3.5) MPa

0.5...10

0...1.5

0...1.0

0...2.0

0...1.0

0...1.0

0...1.0

GearboxesSteam turbinesElectric motorsGenerators

GearboxesSteam turbines Electric motorsGenerators

General Information:Small shaft diameterat high speedsTurbochargers

GearboxesSteam turbines

GearboxesHigh-speed pumpsExpansion turbinesRefrigeration turbinesMachine tool spindles

GearboxesSteam turbinesSingle shaft compressors

Turbo gearboxesTurbo compressorsSteam turbinesGas turbines




5

Reference Codes For Ordering

In order to provide clear identification, the products are coded as follows:

Examples of John Crane bearing reference codes

1. Reference code _ K_T S6 50/110 x 52.2Tilting pad journal bearing with five journal pads, split design forboth directions of rotation, Series 6 catalogue type with L/D =0.6, bearing bore diameter Ø50 mm, max. external diameterØ110 mm, max. bearing width 52.2 mm.

2. Reference code 8_8T KD 103/215.85x36.56 (or 8_8T KD H44)Double tilting pad thrust bearing, Series 8 catalogue type with 8thrust pads, split design for both directions of rotation, directedlubrication with spacer and shims, inner diameter Ø103 mm,outer diameter Ø215.85 mm, bearing width 36.56 mm (includingspacers and shims), thrust pad size H44.

3. Reference code 8__R DM 148/301.63x61 (or 8__R DM H61)Self equalising single tilting pad thrust bearing, Series 8 catalogue type, unsplit design for one direction of rotation, selfequalising with directed lubrication, inner diameter Ø148 mm,outer diameter Ø301.63 mm, bearing width 61 mm, thrust padsize H61, spacer optional.

4. Reference code 8M8T SL 70/150x69Combined bearing with 4-lobe journal bearing and double tiltingpad thrust bearing, split design for both directions of rotation,none catalogue type, inner diameter Ø70 mm, outer diameterØ150 mm, bearing width 69 mm.

5. Reference code _H_S SD 300/410x310Offset-Half journal bearing, split design for one direction of rotation, catalogue type, inner diameter Ø300 mm, outer diameter 410 mm, bearing width Ø310 mm.

The individual parts of the reference codes are explained in moredetail below.

Thrust parts

_ = No thrust part3 = 3 Thrust tilting pad4 = 4 Thrust tilting pad5 = 5 Thrust tilting pad6 = 6 Thrust tilting pad7 = 7 Thrust tilting pad8 = 8 Thrust tilting padA = 10 Thrust tilting padB = 11 Thrust tilting padC = 12 Thrust tilting padD = 14 Thrust tilting padE = 16 Thrust tilting padF = 18 Thrust tilting padM = Taper land thrustN = Stop collar

Journal part

_ = No journal part3 = 3 Journal tilting pad4 = 4 Journal tilting padD = 3 Hydrodynamic surfacesH = 2 Hydrodynamic surfaces

(offset half)K = 5 Journal tilting padL = 2 Hydrodynamic surfaces

(lemon-bore)M = 4 Hydrodynamic surfacesY = ZYBLO bearingZ = Cylindrical bearings

Shape/direction of rotation

A = Unsplit, spherical seating, rotation in both directionsB = Unsplit, rotation in both directionsC = Unsplit, spherical seating, right-hand rotationD = Split, spherical seating, rotation in both directionsE = Split, spherical seating, left-hand rotationF = Split, spherical seating, right-hand rotationK = Unsplit, spherical seating, left-hand rotationL = Unsplit, left-hand rotationR = Unsplit, right-hand rotationS = Split, right-hand rotationT = Split, rotation in both directionsU = Split, left-hand rotation

Series/product line

These parameters are assigned to specific product lines. In some ofthe scale drawings in the catalogues, the appropriate product typeparameters have already been assigned.

Thrust part

Journal part

Thrust part

Shape/direction ofrotation

Series

Bearing bore ø

Max. outer ø

Max. width

_K_T S6 50/110x52.2



6


Lubrication

Standard John Crane products consist of two product lines, with three types of oil supply

■ Flooded lubrication:

a) Laterally sealed by throttle rings and a defined seal gap to the shaft. Additional oil flow controlled by inlet holes.

b) Laterally sealed by floating rings with oil flow controlled by outlet holes (Standard S2)

■ Directed lubrication:

Oil inlet nozzles metering the flow and lateral flange seals equipped with large drain holes on the lower side.

All standard John Crane models are offered as split designs,proven to be the easiest way for assembly and maintenance.

In addition, each product line (flooded or directed lubrication)comes in two standard bearing width ratios:

B/D = 0.6B/D = 0.9

Bearings with spherical pad support type P1 are the only exception to this.

Flooded lubrication (throttle ring)

Flooded lubrication (floating ring)

Directed lubrication (flange)




7

Tilting Pad Journal Bearing, Split, Flooded Lubrication, Floating Ring, SphericalRetaining Screw - B/D = 0.6

l5l4

Ø d6 H7

Ød4

H7

Ød1

Ød5

(Si

de p

late

)

Ød2

j6

Oil flow dependson the application

AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t

Temperature bores:One bore per pad, Ø 3.5mmOption: PT 100 1x 3-wire max. 3 piecesor PT 100 2x 3-wire max. 3 pieces

B

l 1

l 3

MaterialHousing : C 15Tilting pads : C 15Bearing metal : Tegostar 738Floating rings : Al

Temperature probeholes (3)

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e

30 44 85 30.02 64 4 18 40 36.2 8 11.0 5 0.03035 51 85 35.01 64 4 22 40 40.2 8 11.0 5 0.04040 56 110 39.99 88 5 25 50 47.2 10 14.0 6 0.04545 63 110 44.98 88 5 25 50 47.2 10 14.0 6 0.05050 70 110 49.97 88 5 30 50 52.2 10 14.0 6 0.06055 75 110 54.96 95 5 30 50 52.2 10 14.0 6 0.06560 80 110 59.95 95 5 35 50 57.2 10 14.0 6 0.07070 90 160 69.93 133 6 40 70 64.2 16 21.0 7 0.08580 105 160 79.90 133 6 45 70 69.2 16 21.0 7 0.09590 115 160 89.88 133 6 55 70 79.2 16 21.0 7 0.110

100 130 200 99.85 175 6 60 90 90.2 20 28.0 7 0.120110 140 200 109.83 175 6 65 90 95.2 20 28.0 7 0.130125 160 230 124.86 190 8 80 105 110.2 25 32.5 9 0.140140 180 230 139.77 204 8 90 105 123.2 25 32.5 9 0.150160 205 280 159.79 240 8 100 115 134.2 32 37.5 9 0.160180 230 315 179.67 265 8 115 125 150.2 32 37.5 9 0.170200 255 350 199.63 302 8 120 130 160.2 32 37.5 9 0.200

Order example:

(Bearing with nominal-Ø 50 mm)

_K_T S2 50/110x52.2(l1/l3) maxd2D

Standard S2



8


Tilting Pad Journal Bearing, Split, Flooded Lubrication, Floating Ring,Spherical Retaining Screw - B/D = 0.9

l5l4

Ø d6 H7

Ød4

H7

Ød1

Ød5

(Si

de p

late

)

Ød2

j6

Oil flow dependson the application

AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t

Temperature bores:One bore per pad, Ø 3.5mmOption: PT 100 1x 3-wire max. 3 piecesor PT 100 2x 3-wire max. 3 pieces

B

l 1

l 3

MaterialHousing : C 15Tilting pads : C 15Bearing metal : Tegostar 738Floating rings : Al

Temperature probeholes (3)

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e

30 44 85 30.02 4 28 40 46.2 8 11.0 5 0.03035 51 85 35.01 64 4 32 40 50.2 8 11.0 5 0.04040 56 110 39.99 88 5 36 50 58.2 10 14.0 6 0.04545 63 110 44.98 88 5 40 50 62.2 10 14.0 6 0.05050 70 110 49.97 88 5 45 51 67.2 10 14.0 6 0.06055 75 110 54.96 95 5 50 57 72.2 10 14.0 6 0.06560 80 110 59.95 95 5 56 63 78.2 10 14.0 6 0.07070 90 160 69.93 133 6 63 70 87.2 16 21.0 7 0.08580 105 160 79.90 133 6 71 78 95.2 16 21.0 7 0.09590 115 160 89.88 133 6 80 87 104.2 16 21.0 7 0.110

100 130 200 99.85 175 6 90 97 120.2 20 28.0 7 0.120110 140 200 109.83 175 6 100 107 130.2 20 28.0 7 0.130125 160 230 124.86 190 8 110 117 140.2 25 32.5 9 0.140140 180 230 139.77 204 8 125 132 158.2 25 32.5 9 0.150160 205 280 159.79 240 8 140 147 174.2 32 37.5 9 0.160180 230 315 179.67 265 8 160 167 195.2 32 37.5 9 0.170200 255 350 199.63 302 8 180 190 220.2 32 37.5 9 0.200

Order example:


_K_T S2 50/110x67.2l3d2D

Standard S2




9

Tilting Pad Journal Bearing, Split, Directed Lubrication, Screw-in Nozzles,Spherical Retaining Screw - B/D = 0.6

l5

l4

Ø d6 H7

Ød4

A9

Ød1

Ød5

(si

de p

late

)

Ød2

j6

Cross-section of oil feed nozzledepending on the application

AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t

Oil drain holesin flange seal

B

l 1

l 3

MaterialHousing : C 15Tilting pads : C 15Bearing metal : Tegostar 738Flange seal : Al

Standard S63 nozzles per pad gap, starting at a bearingbore of 90 Ø Nozzle rail (5x), starting at a bearing bore of 225 Ø

T

U

S

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e

30 44 85 30 64 4 18 40 36.2 8 11.0 5 0.03035 51 85 35 64 4 22 40 40.2 8 11.0 5 0.03040 56 110 40 88 5 25 50 47.2 10 14.0 6 0.03045 63 110 45 88 5 25 50 47.2 10 14.0 6 0.03250 70 110 50 88 5 30 50 52.2 10 14.0 6 0.03555 75 110 55 95 5 30 50 52.2 10 14.0 6 0.03560 80 110 60 95 5 35 50 57.2 10 14.0 6 0.04065 85 160 65 133 6 40 60 64.2 16 21.0 7 0.04070 90 160 70 133 6 40 70 64.2 16 21.0 7 0.04075 100 160 75 133 6 45 70 69.2 16 21.0 7 0.04080 105 160 80 133 6 45 70 69.2 16 21.0 7 0.04590 115 160 90 133 6 55 70 79.2 30 21.0 7 0.050

100 130 200 100 175 6 60 90 90.2 32 28.0 7 0.055110 140 200 110 175 6 65 90 95.2 34 28.0 7 0.060125 160 230 125 190 8 80 105 110.2 34 32.5 9 0.065140 180 230 140 204 8 90 105 123.2 35 32.5 9 0.070160 205 280 160 240 8 100 115 134.2 35 37.5 9 0.080180 230 315 180 265 8 115 125 145.2 42 37.5 9 0.090200 255 350 200 302 8 120 130 160.2 42 37.5 9 0.100225 290 425 225 345 10 135 145 180.3 45 42.5 11 0.110250 325 475 250 375 10 150 160 200.3 50 45.0 11 0.125280 360 500 280 417 12 165 175 221.3 60 54.0 13 0.140300 385 515 300 442 12 180 190 240.3 65 56.5 13 0.150315 410 580 315 462 12 190 200 253.3 65 56.5 13 0.160

Order example:


_K_U S6 50/110x52.2(l1/l3) maxd2DDirection of rotation



10


Tilting Pad Journal Bearing, Split, Directed Lubrication, Screw-in Nozzles, Spherical Retaining Screw -B/D = 0.9

l5

Ø d6 H7

Ød4

A9

Ød1

Ød5

(si

de p

late

)

Ød2

j6


AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t

Oil drain holesin flange seal B

l 1

l 3


l 4

Standard S63 nozzles per pad gap, starting at a bearing bore of 55 Ø Nozzle rail (5x), starting at a bearing bore of 160 Ø

T

U

S

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e

30 44 85 30 64 4 28 40 46.2 8 11.0 5 0.03035 51 85 35 64 4 32 40 50.2 8 11.0 5 0.03040 56 110 40 88 5 36 50 58.2 10 14.0 6 0.03045 63 110 45 88 5 40 50 62.2 10 14.0 6 0.03250 70 110 50 88 5 45 51 67.2 10 14.0 6 0.03555 75 110 55 95 5 50 57 72.2 20 14.0 6 0.03560 80 110 60 95 5 56 63 78.2 20 14.0 6 0.04065 85 160 65 133 6 60 67 84.2 25 21.0 7 0.04070 90 160 70 133 6 63 70 87.2 31 21.0 7 0.04075 100 160 75 133 6 67 78 91.2 30 21.0 7 0.04080 105 160 80 133 6 71 78 95.2 30 21.0 7 0.04590 115 160 90 133 6 80 87 104.2 30 21.0 7 0.050

100 130 200 100 175 6 90 97 120.2 32 28.0 7 0.055110 140 200 110 175 6 100 107 130.2 34 28.0 7 0.060125 160 230 125 190 8 110 117 140.2 34 32.5 9 0.065140 180 230 140 204 8 125 132 158.2 35 32.5 9 0.070160 205 280 160 240 8 140 147 174.2 35 37.5 9 0.080180 230 315 180 265 8 160 167 190.2 42 37.5 9 0.090200 255 350 200 302 8 180 190 220.2 42 37.5 9 0.100225 290 425 225 345 10 200 210 245.3 45 42.5 11 0.110250 325 475 250 375 10 225 235 275.3 50 45.0 11 0.125280 360 500 280 417 12 250 260 306.3 60 54.0 13 0.140300 385 515 300 442 12 270 280 330.3 65 56.5 13 0.150315 410 580 315 462 12 280 290 343.3 65 56.5 13 0.160

Order example:


_K_U S6 50/110x67.2l3d2DDirection of rotation




11

Self Aligning Tilting Pad Journal Bearing, Split, With Spherical Pad Support

Depending on the particularapplication, rotation in one orboth directions is possible.

l5

l4

Ø d6 H7

Ød4

A9

Ød5

(co

ver)

Ød2

j6

Cross-section of oil feed nozzle, depending on the application

AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t


l 1

l 3

MaterialHousing : C 15Tilting pads : C 15Bearing metal : Tegostar 738Spherical seating : GGG 40Flange seal : Al

Standard P13 nozzles per pad gap, starting at a bearing bore of 55 ØNozzle rail (5x), starting at a bearing bore of 160 Ø

T

U

S

D d2 d4 d5 d6 B l1 l3 l4 l5 t e

35 85 35 75 4 32 40 50 8 11.0 5 0.03040 110 40 88 5 36 50 58 10 14.0 6 0.03045 110 45 88 5 40 50 63 12 14.0 6 0.03250 110 50 93 5 45 51 68 17 14.0 6 0.03555 110 55 98 5 50 57 72 20 14.0 6 0.03560 110 60 90 5 56 63 78 20 14.0 6 0.04065 160 65 133 6 60 67 85 25 21.0 7 0.04070 160 70 133 6 63 70 88 31 21.0 7 0.04080 160 80 133 6 71 78 96 30 21.0 7 0.04590 160 90 143 6 80 87 105 30 21.0 7 0.050

100 200 100 175 6 90 97 121 32 28.0 7 0.055110 200 110 180 6 100 107 130 34 28.0 7 0.060125 230 125 210 8 110 117 141 34 32.5 9 0.065140 230 140 215 8 125 132 158 35 32.5 9 0.070160 280 160 230 8 140 147 175 32 37.5 9 0.080180 315 180 305 8 160 167 195 42 37.5 9 0.090200 400 200 350 8 180 190 220 42 37.5 9 0.100225 425 225 385 10 200 210 245 45 42.5 11 0.110250 475 260 415 10 225 235 275 50 45.0 11 0.125280 500 280 467 12 250 260 306 60 54.0 13 0.140300 515 300 493 12 270 280 330 65 56.5 13 0.150315 580 315 510 12 280 290 343 65 56.5 13 0.160

Order example:

Bearing with nominal-Ø 50 mm)

_K_S P1 50/110x67l3d2DDirection of rotation



12


Self Aligning Tilting Pad Journal Bearings With Spherical Pad SupportSplit, Directed Lubrication, B/D = 0.6

l 5

l 4

Ø d6 H7

Ød4

A9

Ø d

1

Ø d

5 (D

ecke

l)

Ø d

2 j6


AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t

B

l 1

l 3

MaterialHousing : high-strength steelTilting pads: high-strength steelBearing metal : Tegostar 738Flange seal : Al

M

Oil drain holesin flange seal(with screw thread for sealing)

Standard P23 nozzles per pad gap, starting at a bearingbore of 90Ø Nozzle rail (5x), starting at a bearing bore of 225 Ø

Reverse rotational direction with offset pivot bearings ispermitted at all speeds with up to 50% operational load

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e M

30 44 85 30 64 4 18 40 36.2 8 11.0 5 0.030 435 51 85 35 64 4 22 40 40.2 8 11.0 5 0.030 440 56 110 40 88 5 25 50 47.2 10 14.0 6 0.030 5

45 63 110 45 88 5 25 50 47.2 10 14.0 6 0.032 550 70 110 50 88 5 30 50 52.2 10 14.0 6 0.035 555 75 110 55 95 5 30 50 52.2 10 14.0 6 0.035 5

60 80 110 60 95 5 35 50 57.2 10 14.0 6 0.040 565 85 160 65 133 6 40 60 64.2 16 21.0 7 0.040 570 90 160 70 133 6 40 70 64.2 16 21.0 7 0.040 6

75 100 160 75 133 6 45 70 69.2 16 21.0 7 0.040 680 105 160 80 133 6 45 70 69.2 16 21.0 7 0.045 690 115 160 90 133 6 55 70 79.2 30 21.0 7 0.050 6

100 130 200 100 175 6 60 90 90.2 32 28.0 7 0.055 6110 140 200 110 175 6 65 90 95.2 34 28.0 7 0.060 8125 160 230 125 190 8 80 105 110.2 34 32.5 9 0.065 8

140 180 230 140 204 8 90 105 123.2 35 32.5 9 0.070 8160 205 280 160 240 8 100 115 134.2 35 37.5 9 0.080 8180 230 315 180 265 8 115 125 145.2 42 37.5 9 0.090 8

200 255 400 200 302 8 120 130 160.2 42 37.5 9 0.100 8225 290 425 225 345 10 135 145 180.3 45 42.5 11 0.110250 325 475 250 375 10 150 160 200.3 50 45.0 11 0.125

280 360 500 280 417 12 165 175 221.3 60 54.0 13 0.140300 385 515 300 442 12 180 190 240.3 65 56.5 13 0.150315 410 580 315 462 12 190 200 253.3 65 56.5 13 0.160

Order example:


_K_U P2 50/110x52.2

(l1/l3) max

d2

D

Direction of Rotation




13

Self Aligning Tilting Pad Journal Bearings With Spherical Pad SupportSplit, Directed Lubrication, B/D = 0.9

l 5

l 4

Ø d6 H7

Ød4

A9

Ø d

1

Ø d

5 (D

ecke

l)

Ø d

2 j6


AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t

B

l 1

l 3

MaterialHousing : high-strength steelTilting pads: high-strength steelBearing metal : Tegostar 738Flange seal : Al

M

Oil drain holesin flange seal(with screw thread for sealing)

Standard P23 nozzles per pad gap, starting at a bearingbore of 55Ø Nozzle rail (5x), starting at a bearing bore of 160 Ø

Reverse rotational direction with offset pivot bearings ispermitted at all speeds with up to 50% operational load

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e M

30 44 85 30 64 4 28 40 46.2 8 11.0 5 0.030 435 51 85 35 64 4 32 40 50.2 8 11.0 5 0.030 440 56 110 40 88 5 36 50 58.2 10 14.0 6 0.030 5

45 63 110 45 88 5 40 50 62.2 10 14.0 6 0.032 550 70 110 50 88 5 45 51 67.2 10 14.0 6 0.035 555 75 110 55 95 5 50 57 72.2 20 14.0 6 0.035 5

60 80 110 60 95 5 56 63 78.2 20 14.0 6 0.040 565 85 160 65 133 6 60 67 84.2 25 21.0 7 0.040 570 90 160 70 133 6 63 70 87.2 31 21.0 7 0.040 6

75 100 160 75 133 6 67 78 91.2 30 21.0 7 0.040 680 105 160 80 133 6 71 78 95.2 30 21.0 7 0.045 690 115 160 90 133 6 80 87 104.2 30 21.0 7 0.050 6

100 130 200 100 175 6 90 97 120.2 32 28.0 7 0.055 6110 140 200 110 175 6 100 107 130.2 34 28.0 7 0.060 8125 160 230 125 190 8 110 117 140.2 34 32.5 9 0.065 8

140 180 230 140 204 8 125 132 158.2 35 32.5 9 0.070 8160 205 280 160 240 8 140 147 174.2 35 37.5 9 0.080 8180 230 315 180 265 8 160 167 190.2 42 37.5 9 0.090 8

200 255 400 200 302 8 180 190 220.2 42 37.5 9 0.100 8225 290 425 225 345 10 200 210 245.3 45 42.5 11 0.110250 325 475 250 375 10 225 235 275.3 50 45.0 11 0.125

280 360 500 280 417 12 250 260 306.3 60 54.0 13 0.140300 385 515 300 442 12 270 280 330.3 65 56.5 13 0.150315 410 580 315 462 12 280 290 343.3 65 56.5 13 0.160

Order example:


_K_U P2 50/110x67.2

(l1/l3) max

d2

D

Direction of Rotation



14


Tilting Pad Journal Bearing, Split, Directed Lubrication,Screw-in Nozzles, Spherical Retaining Screw - B/D = 0.6

l5

l4

Ø d6 H7

Ød4

A9

Ød1

Ød5

(si

de p

late

)

Ød2

js6


AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t

Oil drain holesin flange seal

B

l 1

l 3


Standard TJ3 nozzles per pad gap, starting at a bearing bore of 90 Ø Nozzle rail (5x), starting at a bearing bore of 225 Ø

T

US

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e

30 44 69 30 64 4 18 25 36.2 8 11.0 5 0.03035 51 76 35 64 4 22 29 40.2 8 11.0 5 0.03040 56 82 40 78 5 25 32 47.2 10 14.0 6 0.03045 63 89 45 85 5 25 32 47.2 10 14.0 6 0.03250 70 95 50 88 5 30 37 52.2 10 14.0 6 0.03555 75 111 55 95 5 30 37 52.2 10 14.0 6 0.03560 80 120 60 95 5 35 42 57.2 10 14.0 6 0.04070 90 130 70 118 6 40 47 64.2 16 21.0 7 0.04080 105 139 80 133 6 45 52 69.2 16 21.0 7 0.04590 115 165 90 133 6 55 62 79.2 30 21.0 7 0.050

100 130 177 100 164 6 60 67 90.2 32 28.0 7 0.055110 140 190 110 175 6 65 72 95.2 34 28.0 7 0.060125 160 215 125 190 8 80 87 110.2 34 32.5 9 0.065140 180 228 140 204 8 90 97 123.2 35 32.5 9 0.070160 205 266 160 240 8 100 107 134.2 35 37.5 9 0.080180 230 298 180 265 8 115 122 150.2 42 37.5 9 0.090200 255 336 200 302 8 120 127 155.2 42 37.5 9 0.100225 290 374 225 326 10 135 145 180.3 45 42.5 11 0.110250 325 406 250 371 10 150 160 180.3 50 45.0 11 0.125280 360 450 280 407 12 165 175 221.3 60 54.0 13 0.140300 385 482 300 431 12 180 190 240.3 65 56.5 13 0.150

Order example:


_K_S TJ 50/95x52.2l3d2DDirection of rotation




15

Tilting Pad Journal Bearing, Split, Directed Lubrication,Screw-in Nozzles, Spherical Retaining Screw - B/D = 0.9

l5

l4

Ø d6 H7

Ød4

A9

Ød1

Ød5

(si

de p

late

)

Ød2

js6


AB

AB

d6/2

+ 1

mm

18°

D =

Ø H6

t


l 1

l 3


Standard TJ3 nozzles per pad gap, starting at a bearing bore of 90 Ø Nozzle rail (5x), starting at a bearing bore of 225 Ø

T

U

S

D d1 d2 d4 d5 d6 B l1 l3 l4 l5 t e

30 44 69 30 64 4 28 35 46.2 8 11.0 5 0.03035 51 76 35 64 4 32 39 50.2 8 11.0 5 0.03040 56 82 40 78 5 36 43 58.2 10 14.0 6 0.03045 63 89 45 85 5 40 47 62.2 10 14.0 6 0.03250 70 95 50 88 5 45 52 67.2 10 14.0 6 0.03555 75 111 55 95 5 50 57 72.2 20 14.0 6 0.03560 80 120 60 95 5 56 63 78.2 20 14.0 6 0.04070 90 130 70 118 6 63 70 87.2 31 21.0 7 0.04080 105 139 80 133 6 71 78 95.2 30 21.0 7 0.04590 115 165 90 133 6 80 87 104.2 30 21.0 7 0.050

100 130 177 100 164 6 90 97 120.2 32 28.0 7 0.055110 140 190 110 175 6 100 107 130.2 34 28.0 7 0.060125 160 215 125 190 8 110 117 140.2 34 32.5 9 0.065140 180 228 140 204 8 125 132 158.2 35 32.5 9 0.070160 205 266 160 240 8 140 147 174.2 35 37.5 9 0.080180 230 298 180 265 8 160 167 195.2 42 37.5 9 0.090200 255 336 200 302 8 180 187 215.2 42 37.5 9 0.100225 290 374 225 326 10 200 210 245.3 45 42.5 11 0.110250 325 406 250 371 10 225 235 275.3 50 45.0 11 0.125280 360 450 280 407 12 250 260 306.3 60 54.0 13 0.140300 385 482 300 431 12 270 280 330.3 65 56.5 13 0.150

Order example:


_K_T TJ 50/95x67.2l3d2DDirectionof rotation



16


Instrumentation

Single resistance temperature probe Temperature range: 0–200°Cwith additional mass-conductor

Double resistance temperature probe Temperature range: 0–200°Cwith additional mass-conductor

5000

John Crane Material-No: GT00533

John Crane Material-No:ø a b3.2 11 GT060654.2 20 GT00534

Oil-tight lead

5000

Oil-tight lead

ø 3.

2

ø6

300 40

11

ø a

ø 6

300 40

b



17


Notes



17


Notes



17


Notes





If the products featured will be used in a potentially dangerous and/or hazardous process, your John Crane representative should be consulted prior to their selection and use. In the interest of continuous development, John Crane Companies reserve the right to alter designs and specifications without prior notice. It is dangerous to smoke while handling products made from PTFE. Old and new PTFE products must not be incinerated. ISO 9001 and ISO 14001 Certified, details available on request.

©2015 John Crane Revised 10/15 www.johncrane.com TD-TPJB

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Documents

TILTING PAD - John Crane/media/J/Johncrane_com/Files/Products...the dynamic characteristics of a tilting pad journal bearing. ... Bore type/Load direction 5x52 deg/ between ... Tilting