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QUICKREFERENCE GUIDE
Making The Precision Bearings Industry Demands.
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CORPORATE OFFICE 1600�East�Bishop�Court�Mt.�Prospect,�IL�60056�Tel:�(847)�298-7500�����1-800-468-6528�Fax:�(847)�294-1230��
SALES OFFICES:
EASTERN REGION191�Sheree�Blvd.�Suite�101Exton,�PA�19341Tel:�(610)�524-1477�����1-800-394-4686Fax:�(610)�524-1577
SOUTHEAST REGION5475�Peachtree�Industrial�Blvd.Norcross,�GA�30071Tel:�(770)�448-4710�����1-800-241-0568Fax:�(770)�448-6969
GREAT LAKES REGION1600�East�Bishop�CourtMt.�Prospect,�IL�60056Tel:�(847)�298-7500�����1-800-252-8123Fax:�(847)�294-1364
CENTRAL REGION111�W.�Washington�St.�Suite�310East�Peoria,�IL�61611Tel:�(309)�699-8600����1-800-545-0434Fax:�(309)�699-8670
WESTERN REGION5800�Campus�Circle�Dr.�E�Suite�108AIrving,�TX�76053Tel:�(972)�751-1818���1-800-441-0825Fax:�(972)�751-1836
AUTOMOTIVE GROUP39255�West�12�Mile�Rd.Farmington�Hills,�MI�48331Tel:�(248)�324-4700���1-800-929-3892Fax:�(248)�324-1103
WWW.NTNAMERICA.COM
Printed In USA 10/2008
2 15
1. PREFIX No Symbol: High carbon chrome bearing steel (equivalent to AISI E52100) F: Martensitic stainless steel (equivalent to AISI 440C)
2. SERIES 67, 68: Metric series 69, 60: Metric series 62, 63: Metric series R: Inch series W: Wider than standard width (sealed type) WA: Non-standard sizes RA: Wider than standard width of inch series (open and sealed
types) FL: Flanged outer ring FLA: Flanged outer ring, provided non-standard flange dimensions
3. CAGE No Symbol: Pressed steel cage J1: Pressed stainless steel cage T1: Phenolic resin cage T2: Nylon cage
4. SEAL OR SHIELD No symbol: Open Type Z, ZZ: Steel shield(s) ZA, ZZA: Removable steel shield(s) ZA1, ZZA1: Removable stainless steel shield(s) Z1, ZZ1: Stainless steel shield(s) LB, LLB: Non-contact type rubber seal(s) LU, LLU: Contact type rubber seal(s)
5. INTERNAL CLEARANCE No Symbol: Normal clearance C2: Clearance less than normal C3: Clearance greater than normal C4: Clearance greater than C3 C2S: Low group of C2 clearance CNS: Low group of normal clearance CNM: Medium group of normal clearance CNL: High group of normal clearance C3S: Low group of C3 clearance C3M: Medium group of C3 clearance C3L: High group of C3
6. TOLERANCE No Symbol: ISO class 0 (equivalent to ABEC 1) P6: ISO class 6 (equivalent to ABEC 3) P5: ISO class 5 (equivalent to ABEC 5) P4: ISO class 4 (equivalent to ABEC 7) P2: ISO class 2 (equivalent to ABEC 9) P5A: ISO class 5A P4A: ISO class 4A PS5: NTN PS class 5 PS4: NTN PS class 4 PX1: Special tolerance
7. PRELUBRICANT 1K: Kyodo Yushi Multemp PS No. 2 2AS: Shell Alvania 2 1E: Exxon Andok C 6K: Klüber Isoflex Super LDS18 5C: Chevron SRI2 5K: Kyodo Yushi Multemp SRL 1W: Anderson Oil Winsor Lube L245X (oil) L627: Exxon Polyrex EM
10. SPECIAL SPECIFICATION V1...Vn
RW R(A)W-ZA R(A)W-ZZA FLRW FLR(A)W-ZA FLR(A)W-ZZA
676869606263
R(A)
W(A)67ZAW68Z(A)
(W)69Z(A)(W)60Z(A)
62Z63Z
R(A)-Z(A)
W(A)67ZZAW68ZZ(A)
(W)69ZZ(A)(W)60ZZ(A)
62ZZ63ZZ
R(A)-ZZ(A)
FL67FL68FL69FL60FL62FL63
FLR(A)
FL(A)W(A)67ZAFLW68Z(A)
FL(W)69Z(A)FL(W)60Z(A)
FL62ZFL63Z
FLR(A)-Z(A)
FL(A)W(A)67ZZAFLW68ZZ(A)
FL(W)69ZZ(A)FL(W)60ZZ(A)
FL62ZZFL63ZZ
FLR(A)-ZZ(A)
Open Type Single Shield Type Double Shield Type Open Type Single Shield Type Double Shield TypeFlanged Outer Ring
MICROBEARING
NUMBERINGSYSTEM
1. Bearing Type D=Disc Bearing
2. OD Type S = Spherical OD C = Cylindrical OD
3. Bearing Series 209 = Heavy Duty Series and bore size
4. Seal Type TT = 2 Vangaurd triple lip seals
5. Re-lube Feature R = Relubricatable
6. Special Features 2 = Special feature
DISCBEARING
NUMBERINGSYSTEM
14 3
WIDEINNER RINGADAPTERBEARING
NUMBERINGSYSTEM
1. Bearing Type WP=Adapter bearings with wide inner ring and locking collar
2. OD Type S = Spherical OD C = Cylindrical OD
3. Shaft Size 100 = 1st digit is in inches, and 2nd number is 1/16” ex. 100 = 1” 104 = 1.1/4” 014 = 14/16 = 7/8”
4. Seal Type G = Vanguard single lip seals V= Vanguard double lip seals T = Vanguard triple lip seals
5. Re-lube Feature P = Non-relubricatable R = Relubricatable
6. Locking collar C = Comes with locking collar
7. Special Feature 2 = Special feature
1. PREFIX TS2: Heat stabilization for up to 320˚ F (160˚ C) TS3: Heat stabilization for up to 390˚ F (200˚ C) TS4: Heat stabilization for up to 480˚ F (250˚ C)
2. TYPE 6: Single row deep groove ball bearings 8, WC8: Single row deep groove ball bearings BL: Maximum capacity DE & DF: Special double row ball bearings SC & SX: Special single row ball bearings R: Inch series TMB: Thermal mechanical bearing
3. INTERNAL DESIGN A: Internal redesign, from A onward U: Universal seal groove for open bearings
4. CHAMFER Xn: Special chamfer, from 1 onward (X1, X2 . . .)
5. CAGE No Symbol: Pressed steel cage J: Pressed steel cage T1: Phenolic cage T2: Nylon cage L1: Machined brass cage
6. SEAL OR SHIELD No Symbol: Open Type LB, LLB: Non-contact rubber seal LU, LLU: Double-lip contact rubber seal LH,LLH: Light contact rubber seal LUA,LLUA: Polyacrylic rubber seal LUA1,LLUA1: Fluorocarbon rubber seal Z, ZZ: Shield Z1, ZZ1: Stainless steel shield ZA, ZZA: Removable shield
7. RING MODIFICATION N: Snap ring groove on outer ring, but without snap ring NR: Snap ring groove on outer ring, snap ring included /X.XX: Special bore, XX.XX in mm; Ex. 5/16” bore, /7.938 /XX.X: Special O.D., size XX.X in mm
8. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance; XX is mean value in 0.001 mm
units
9. TOLERANCE P6: ISO class 6 (equivalent to ABEC 3) P5: ISO class 5 (equivalent to ABEC 5) P4: ISO class 4 (equivalent to ABEC 7) PXn: Special tolerance, from 1 onward (PX1, PX2 . . .) Vn: Special requirement, from 1 onward (V1, V2 . . .)
10. PRELUBRICANT (Typical) 1E: Exxon Andok C grease 1W: Anderson Oil Winsor Lube L-245X, MIL-L-6085A 2AS: Shell Alvania #2 grease, MIL-G-18709A 2E: Exxon Unirex N3 3AS: Shell Oil Alvania #3 grease 5C: Chevron SRI #2 grease, MIL-G-3545C 5K: Kyodo Yushi Multemp SRL 5S: Shell Aeroshell #7 grease, MIL-G-23827A 9B: Mobil 28, MIL-G-81322 L627: Exxon Polyrex EM
RADIALBALL
BEARINGNUMBERING
SYSTEM
SEAL STRUCTURE AND FEATURESTYPE DESIGNATION
● The seal edge forms a double-lip. The inner lip touches the V-slot side of the inner ring’s seal surface. There is a slight gap between the inner ring and the outer lip which produces the laby-rinth effect. Even if friction causes the inner lip to wear, the outer lip constricts around the inner ring to compensate, and thus constantly preserving the perfect sealing effect.
● Due to the fact that it is a contact type seal bearing, the torque will be a little greater but the seal will provide the optimum protection from dust penetration.
Z ZZ
LB LLB
LU LLU
● The sealed V-slot around the inner ring creates an air and/or grease pocket which increases the labyrinth effect.
● This is a non-contact, low-friction torque type bearing assembly, which can be used effectively for general protection.
● Both sides of the seal edge have a circular concaved surface which creates several narrow-wide gaps along the V-shaped groove of the inner ring’s sealed surface. The unique design ensures a perfect labyrinth effect.
● This non-contact, low friction bearing assembly requires very little torque and is highly resistant to dust build-up.
4 13
ANGULARCONTACT
BALL BEARING
NUMBERINGSYSTEM
1. PREFIX TS2: Heat stabilization for up to 320°F (160°C) TS3: Heat stabilization for up to 390°F (200°C) TS4: Heat stabilization for up to 480°F (250°C) 5S: Ceramic Rolling Elements
2. TYPE 32,33: Double row angular contact ball bearings with filling slot 52,53: Double row angular contact ball bearings without filling slot 70,72,73: Angular contact ball bearings BNT: High speed angular contact ball bearings HSB: High speed angular contact ball bearings SF: Special single row angular contact ball bearings DE & DF: Special double row angular contact ball bearings
3. CONTACT ANGLE No Symbol: Contact Angle 30˚ B: Contact angle 40˚ C: Contact angle 15˚
4. CHAMFER Xn: Special chamfer, from 1 onward (X1, X2 . . .)
5. CAGE No Symbol: Standard cage J: Pressed steel cage L1: Machined brass cage T1: Phenolic cage T2: Plastic cage, nylon or teflon
6. DUPLEX ARRANGEMENT DB: Duplex pair, back to back mounting DF: Duplex pair, face to face mounting DT: Duplex pair, tandem mounting G: Single bearings, flush ground universal mount
for DB, DF and DT arrangement GD2: Pair of universally mountable bearings +A: Spacer (A is nominal width of spacer in mm)
7. PRELOAD GL: Light preload GN: Normal preload GM: Medium preload GH: Heavy preload Gn: Special preload
8. TOLERANCE P6: ISO class 6 (equivalent to ABEC 3) P5: ISO class 5 (equivalent to ABEC 5) P4: ISO class 4 (equivalent to ABEC 7) PXn: Special Tolerance, from 1 onward (PX1, PX2 ...)
NARROWINNER RINGADAPTERBEARING
NUMBERINGSYSTEM
1. Bearing Type NP=Adapter bearings with narrow inner ring and locking collar
2. OD Type S = Spherical OD C = Cylindrical OD
3. Shaft Size 100 = 1st digit is in inches, and 2nd number is 1/16” ex. 100 = 1” 104 = 1.1/4” 014 = 14/16 = 7/8”
4. Seal Type R = Vanguard single lip seals
5. Re-lube Feature P = Non-relubricatable R = Relubricatable
6. Cage Type N = Nylon retainer
7. Locking collar C = Comes with locking collar
12 5
HEX BOREBEARING
NUMBERINGSYSTEM
1. Bearing Type HP=Disc Bearing with hex bore
2. OD Type S = Spherical OD C = Cylindrical OD
3. Shaft Size 100 = 1st digit is in inches, and 2nd number is 1/16” ex. 100 = 1” 104 = 1.1/4” 014 = 14/16 = 7/8”
4. Seal Type G = Vanguard single lip seals V= Vanguard double lip seals T = Vanguard triple lip seals
5. Re-lube Feature P = Non-relubricatable R = Relubricatable
6. Special Features 2 = Special feature
1. TYPE 1: Standard for self-aligning ball bearings 2: Standard for self-aligning ball bearings
2. CAGE No Symbol: Standard cage J: Pressed steel cage T2: Plastic cage, nylon or teflon L1: Machined brass cage
3. RING MODIFICATION K: 1:12 tapered bore
4. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance;
XX is mean value in 0.001 mm units
SELFALIGNING
BALL BEARING
NUMBERINGSYSTEM
6 11
CYLINDRICALROLLERBEARING
NUMBERINGSYSTEM
1. TYPE N: Straight outer ring with inner ring and roller assem-
bly NU: Straight inner ring with outer ring and roller assem-
bly NF: One lip outer ring with inner ring and roller assembly NJ: One lip inner ring with outer ring and roller assembly NH: NJ series bearing with HJ thrust collar (NJ+HJ=NH) NN: Double row precision cylindrical bearings HJ: Separate thrust collar R, RN, RNU: Special cylindrical roller bearings
2. SERIES 10: Standard series cylindrical roller bearings 2: Standard series cylindrical roller bearings 22: Standard series cylindrical roller bearings 23: Standard series cylindrical roller bearings 3: Standard series cylindrical roller bearings 4: Standard series cylindrical roller bearings
3. INTERNAL DESIGN E: High capacity cylindrical roller bearings
4. CHAMFER Xn: Special chamfer, from 1 onward (X1, X2 . . .)
5. CAGE F1: Machined steel cage J: Pressed steel cage G1: Machined brass cage T2: Nylon cage
6. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal No Suffix: Normal Radial Clearance C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance;
XX is mean value in 0.001 mm units (μm) NA: Radial clearance of cylindrical roller bearings
with non-interchangeable components
7. TOLERANCE Normal: ISO class 0 P6: ISO class 6 (equivalent to RBEC 3) P5: ISO class 5 (equivalent to RBEC 5) P4: ISO class 4 (equivalent to RBEC 7)
(blank if standard)
1. PREFIX F: Stainless A: Lube on non-locking mechanism side
2. BEARING INSERTS* AEL: Narrow inner ring, locking collar AR: Narrow inner ring, set screw type AS: Narrow inner ring, set screw type JEL: Narrow inner ring, locking collar REL: Wide inner ring, locking collar UR: Wide inner ring, set screw type UC: Wide inner ring, set screw type, with flinger UEL: Wide inner ring, locking collar, with flinger UK: Tapered bore, with flinger
3. HOUSINGS F: Flanged unit, cast housing FA: Flanged unit, cast housing FC: Flanged piloted unit, cast housing FD: Flanged unit, cast housing FH: Flanged unit, cast housing FL: Flanged unit, cast housing FS: Flanged piloted unit, cast housing FU: Flanged unit, cast housing PF: Flanged unit, pressed steel housing PFL: Flanged unit, pressed steel housing RPF: Flanged unit, pressed steel housing with rubber ring HP: Pillow Block, cast housing, high center height P: Pillow Block, cast housing PL: Pillow Block, cast housing, low center height PP: Pillow Block, pressed steel housing
RPP: Pillow Block, pressed steel housing with rubber ring UP: Pillow Block, cast housing C: Cylindrical cartridge unit HB: Hanger unit, cast housing PT: Mini stretcher T: Take-up unit, cast housing
4. SIZE 2: Light X: Medium 3: Heavy
5. SUFFIX D1: Relube type W3: Cup Point Set Screw N: Snap Ring Groove NR: Snap Ring and Groove HT1D1: Heat Stablized for up to 284F HT2D1: Heat Stablized for up to 392F
MOUNTEDUNIT
NUMBERINGSYSTEM
* To order a bearing with a cylindrical O.D., add S to the part number (example: JELS).
Inch Series
Metric Series
Ultra Class Series
10 7
MOUNTEDUNIT
SELECTIONMATRIX
UCPX- UCFLUX- UCFUX-
UELP- UELPL- UELFLU- UELFU-
JELP- JELPL- JELFLU- JELFU-
ASPF2
ASPFL2
UELFL2 UELF2
UELFLU2 UELFU2
AELFL2 AELPF2
AELFD2 AELPFL2
JELFL2 JELPF2
JELFD2 JELPFL2
AELP2 AELPL2
UELF3
Housing
Bearing
UELP3
JELPL2
UELFL3
ARPL- ARFLU-
ASPL2
UCP- UCPL- UCFLU- UCFU-
ARFU-
UCPL2- UCFL2 UCF2
UCF3
UCPX UCFLX UCFX
UCFL3UCP3
UCP2
ASFD2
ARP-
UELP2 UELPL2
ASPP2
Ultra
-Cla
ss Sets
crew
Typ
eEc
cent
ric L
ocki
ng C
olla
r
AELPP2
Stan
dard
ISO
Ser
ies
Sets
crew
Typ
eEc
cent
ric L
ocki
ng C
olla
rAd
apte
r Typ
e
UKF2UKP2
Other Bearings AELS2 Farm Implement BearingsUCS3 ASS2 UCS2 REL2
High Base Pillow Block
Low Base Pillow Block
2-Bolt Flange 4-Bolt Square Flange
Pressed Steel Pillow Block
Pressed Steel Flanges
A-U C2
A-JEL2
A-UEL2
A-AR2
A-UCX
JEL2
TAPERED ROLLER BEARING
NUMBERINGSYSTEM
1. PREFIX ET: NTN Endurance tapered roller bearings, case hardened material 4T: NTN 4-Top tapered roller bearings, case hardened material E: Case hardened steel T: Internationally interchangeable dimensions
2. SERIES H: Heavy HH: Heavier than heavy HM: Heavy-medium L: Light LM: Light medium M: Medium ISO: Metric series 320X, 302, 322, 303 and 323
3. SUFFIX A: Different bore, O.D., width or radius from basic part number PK: Class K for J-Line PXn: Special tolerance, n; from 1 onward S: Different bore, OD, width or radius from basic part number U: ISO series; internationally interchangeable through hardened
steel W: Slot or keyway X: Different bore, O.D., width or radius from basic part number -0: AFBMA class 0 -00: AFBMA class 00 -2: AFBMA class 2 -3: AFBMA class 3 -4: AFBMA class 4
8 9
SPHERICALROLLER BEARING
NUMBERINGSYSTEM
1. PREFIX TS2: Heat stabilization for up to 320º F (160º C) TS3: Heat stabilization for up to 390º F (200º C) TS4: Heat stabilization for up to 480º F (250º C) LH: STJ2 Material (Temp 250ºC) MX: All components phosphate coated
2. SERIES 213: Standard series spherical roller bearings 222, 223: Standard series spherical roller bearings 230, 231, 232, 239: Standard series spherical roller bearings 240, 241: Standard series spherical roller bearings W: Wide series spherical roller bearing with integral seals
3. INTERNAL DESIGN B: One piece ribbed inner ring, asymmetrical rollers and center
guided retainer C: Plain inner ring, center floating guide ring UA: Inner ring without center guide, asymmetrical rollers, and outer
ring center-guided retainer (limited thrust capabilities) E: High capacity spherical roller bearings
4. CAGE No Symbol: Standard cage J: Pressed steel cage L1: Machined brass cage T2: Nylon cage
5. SEALS LL: Two integral garter seals with steel backing plates
6. RING MODIFICATION D1: Oil groove and holes K: 1:12 tapered bore
7. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal No Suffix: Normal internal clearance C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance; XX is mean value in 0.001 mm units
8. TOLERANCE No Symbol: Class 0 (equivalent to ABEC 1); standard PXn: Special tolerance, from 1 onward Vn: Special requirement, from 1 onward VS1: Special tolerance for shaker screen bearings (C3 clearance) VS2: Special tolerance for shaker screen bearings (C4 clearance)
1. SERIES & SIZE 51, 53*: Single direction thrust ball bearing 52, 54*: Double direction thrust ball bearing 56: Angular contact thrust ball bearing 29: Spherical thrust roller bearing 29: Single direction thrust ball bearing 9: Single direction thrust ball bearing
* Self-aligning outside diameter
2. CAGE No Symbol: Standard cage J: Pressed steel cage L1: Machined brass cage T2: Plastic cage, nylon or teflon
BALL AND ROLLER THRUST
BEARINGNUMBERING
SYSTEM
8 9
SPHERICALROLLER BEARING
NUMBERINGSYSTEM
1. PREFIX TS2: Heat stabilization for up to 320º F (160º C) TS3: Heat stabilization for up to 390º F (200º C) TS4: Heat stabilization for up to 480º F (250º C) LH: STJ2 Material (Temp 250ºC) MX: All components phosphate coated
2. SERIES 213: Standard series spherical roller bearings 222, 223: Standard series spherical roller bearings 230, 231, 232, 239: Standard series spherical roller bearings 240, 241: Standard series spherical roller bearings W: Wide series spherical roller bearing with integral seals
3. INTERNAL DESIGN B: One piece ribbed inner ring, asymmetrical rollers and center
guided retainer C: Plain inner ring, center floating guide ring UA: Inner ring without center guide, asymmetrical rollers, and outer
ring center-guided retainer (limited thrust capabilities) E: High capacity spherical roller bearings
4. CAGE No Symbol: Standard cage J: Pressed steel cage L1: Machined brass cage T2: Nylon cage
5. SEALS LL: Two integral garter seals with steel backing plates
6. RING MODIFICATION D1: Oil groove and holes K: 1:12 tapered bore
7. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal No Suffix: Normal internal clearance C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance; XX is mean value in 0.001 mm units
8. TOLERANCE No Symbol: Class 0 (equivalent to ABEC 1); standard PXn: Special tolerance, from 1 onward Vn: Special requirement, from 1 onward VS1: Special tolerance for shaker screen bearings (C3 clearance) VS2: Special tolerance for shaker screen bearings (C4 clearance)
1. SERIES & SIZE 51, 53*: Single direction thrust ball bearing 52, 54*: Double direction thrust ball bearing 56: Angular contact thrust ball bearing 29: Spherical thrust roller bearing 29: Single direction thrust ball bearing 9: Single direction thrust ball bearing
* Self-aligning outside diameter
2. CAGE No Symbol: Standard cage J: Pressed steel cage L1: Machined brass cage T2: Plastic cage, nylon or teflon
BALL AND ROLLER THRUST
BEARINGNUMBERING
SYSTEM
10 7
MOUNTEDUNIT
SELECTIONMATRIX
UCPX- UCFLUX- UCFUX-
UELP- UELPL- UELFLU- UELFU-
JELP- JELPL- JELFLU- JELFU-
ASPF2
ASPFL2
UELFL2 UELF2
UELFLU2 UELFU2
AELFL2 AELPF2
AELFD2 AELPFL2
JELFL2 JELPF2
JELFD2 JELPFL2
AELP2 AELPL2
UELF3
Housing
Bearing
UELP3
JELPL2
UELFL3
ARPL- ARFLU-
ASPL2
UCP- UCPL- UCFLU- UCFU-
ARFU-
UCPL2- UCFL2 UCF2
UCF3
UCPX UCFLX UCFX
UCFL3UCP3
UCP2
ASFD2
ARP-
UELP2 UELPL2
ASPP2
Ultra
-Cla
ss Sets
crew
Typ
eEc
cent
ric L
ocki
ng C
olla
r
AELPP2
Stan
dard
ISO
Ser
ies
Sets
crew
Typ
eEc
cent
ric L
ocki
ng C
olla
rAd
apte
r Typ
e
UKF2UKP2
Other Bearings AELS2 Farm Implement BearingsUCS3 ASS2 UCS2 REL2
High Base Pillow Block
Low Base Pillow Block
2-Bolt Flange 4-Bolt Square Flange
Pressed Steel Pillow Block
Pressed Steel Flanges
A-U C2
A-JEL2
A-UEL2
A-AR2
A-UCX
JEL2
TAPERED ROLLER BEARING
NUMBERINGSYSTEM
1. PREFIX ET: NTN Endurance tapered roller bearings, case hardened material 4T: NTN 4-Top tapered roller bearings, case hardened material E: Case hardened steel T: Internationally interchangeable dimensions
2. SERIES H: Heavy HH: Heavier than heavy HM: Heavy-medium L: Light LM: Light medium M: Medium ISO: Metric series 320X, 302, 322, 303 and 323
3. SUFFIX A: Different bore, O.D., width or radius from basic part number PK: Class K for J-Line PXn: Special tolerance, n; from 1 onward S: Different bore, OD, width or radius from basic part number U: ISO series; internationally interchangeable through hardened
steel W: Slot or keyway X: Different bore, O.D., width or radius from basic part number -0: AFBMA class 0 -00: AFBMA class 00 -2: AFBMA class 2 -3: AFBMA class 3 -4: AFBMA class 4
6 11
CYLINDRICALROLLERBEARING
NUMBERINGSYSTEM
1. TYPE N: Straight outer ring with inner ring and roller assem-
bly NU: Straight inner ring with outer ring and roller assem-
bly NF: One lip outer ring with inner ring and roller assembly NJ: One lip inner ring with outer ring and roller assembly NH: NJ series bearing with HJ thrust collar (NJ+HJ=NH) NN: Double row precision cylindrical bearings HJ: Separate thrust collar R, RN, RNU: Special cylindrical roller bearings
2. SERIES 10: Standard series cylindrical roller bearings 2: Standard series cylindrical roller bearings 22: Standard series cylindrical roller bearings 23: Standard series cylindrical roller bearings 3: Standard series cylindrical roller bearings 4: Standard series cylindrical roller bearings
3. INTERNAL DESIGN E: High capacity cylindrical roller bearings
4. CHAMFER Xn: Special chamfer, from 1 onward (X1, X2 . . .)
5. CAGE F1: Machined steel cage J: Pressed steel cage G1: Machined brass cage T2: Nylon cage
6. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal No Suffix: Normal Radial Clearance C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance;
XX is mean value in 0.001 mm units (μm) NA: Radial clearance of cylindrical roller bearings
with non-interchangeable components
7. TOLERANCE Normal: ISO class 0 P6: ISO class 6 (equivalent to RBEC 3) P5: ISO class 5 (equivalent to RBEC 5) P4: ISO class 4 (equivalent to RBEC 7)
(blank if standard)
1. PREFIX F: Stainless A: Lube on non-locking mechanism side
2. BEARING INSERTS* AEL: Narrow inner ring, locking collar AR: Narrow inner ring, set screw type AS: Narrow inner ring, set screw type JEL: Narrow inner ring, locking collar REL: Wide inner ring, locking collar UR: Wide inner ring, set screw type UC: Wide inner ring, set screw type, with flinger UEL: Wide inner ring, locking collar, with flinger UK: Tapered bore, with flinger
3. HOUSINGS F: Flanged unit, cast housing FA: Flanged unit, cast housing FC: Flanged piloted unit, cast housing FD: Flanged unit, cast housing FH: Flanged unit, cast housing FL: Flanged unit, cast housing FS: Flanged piloted unit, cast housing FU: Flanged unit, cast housing PF: Flanged unit, pressed steel housing PFL: Flanged unit, pressed steel housing RPF: Flanged unit, pressed steel housing with rubber ring HP: Pillow Block, cast housing, high center height P: Pillow Block, cast housing PL: Pillow Block, cast housing, low center height PP: Pillow Block, pressed steel housing
RPP: Pillow Block, pressed steel housing with rubber ring UP: Pillow Block, cast housing C: Cylindrical cartridge unit HB: Hanger unit, cast housing PT: Mini stretcher T: Take-up unit, cast housing
4. SIZE 2: Light X: Medium 3: Heavy
5. SUFFIX D1: Relube type W3: Cup Point Set Screw N: Snap Ring Groove NR: Snap Ring and Groove HT1D1: Heat Stablized for up to 284F HT2D1: Heat Stablized for up to 392F
MOUNTEDUNIT
NUMBERINGSYSTEM
* To order a bearing with a cylindrical O.D., add S to the part number (example: JELS).
Inch Series
Metric Series
Ultra Class Series
12 5
HEX BOREBEARING
NUMBERINGSYSTEM
1. Bearing Type HP=Disc Bearing with hex bore
2. OD Type S = Spherical OD C = Cylindrical OD
3. Shaft Size 100 = 1st digit is in inches, and 2nd number is 1/16” ex. 100 = 1” 104 = 1.1/4” 014 = 14/16 = 7/8”
4. Seal Type G = Vanguard single lip seals V= Vanguard double lip seals T = Vanguard triple lip seals
5. Re-lube Feature P = Non-relubricatable R = Relubricatable
6. Special Features 2 = Special feature
1. TYPE 1: Standard for self-aligning ball bearings 2: Standard for self-aligning ball bearings
2. CAGE No Symbol: Standard cage J: Pressed steel cage T2: Plastic cage, nylon or teflon L1: Machined brass cage
3. RING MODIFICATION K: 1:12 tapered bore
4. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance;
XX is mean value in 0.001 mm units
SELFALIGNING
BALL BEARING
NUMBERINGSYSTEM
4 13
ANGULARCONTACT
BALL BEARING
NUMBERINGSYSTEM
1. PREFIX TS2: Heat stabilization for up to 320°F (160°C) TS3: Heat stabilization for up to 390°F (200°C) TS4: Heat stabilization for up to 480°F (250°C) 5S: Ceramic Rolling Elements
2. TYPE 32,33: Double row angular contact ball bearings with filling slot 52,53: Double row angular contact ball bearings without filling slot 70,72,73: Angular contact ball bearings BNT: High speed angular contact ball bearings HSB: High speed angular contact ball bearings SF: Special single row angular contact ball bearings DE & DF: Special double row angular contact ball bearings
3. CONTACT ANGLE No Symbol: Contact Angle 30˚ B: Contact angle 40˚ C: Contact angle 15˚
4. CHAMFER Xn: Special chamfer, from 1 onward (X1, X2 . . .)
5. CAGE No Symbol: Standard cage J: Pressed steel cage L1: Machined brass cage T1: Phenolic cage T2: Plastic cage, nylon or teflon
6. DUPLEX ARRANGEMENT DB: Duplex pair, back to back mounting DF: Duplex pair, face to face mounting DT: Duplex pair, tandem mounting G: Single bearings, flush ground universal mount
for DB, DF and DT arrangement GD2: Pair of universally mountable bearings +A: Spacer (A is nominal width of spacer in mm)
7. PRELOAD GL: Light preload GN: Normal preload GM: Medium preload GH: Heavy preload Gn: Special preload
8. TOLERANCE P6: ISO class 6 (equivalent to ABEC 3) P5: ISO class 5 (equivalent to ABEC 5) P4: ISO class 4 (equivalent to ABEC 7) PXn: Special Tolerance, from 1 onward (PX1, PX2 ...)
NARROWINNER RINGADAPTERBEARING
NUMBERINGSYSTEM
1. Bearing Type NP=Adapter bearings with narrow inner ring and locking collar
2. OD Type S = Spherical OD C = Cylindrical OD
3. Shaft Size 100 = 1st digit is in inches, and 2nd number is 1/16” ex. 100 = 1” 104 = 1.1/4” 014 = 14/16 = 7/8”
4. Seal Type R = Vanguard single lip seals
5. Re-lube Feature P = Non-relubricatable R = Relubricatable
6. Cage Type N = Nylon retainer
7. Locking collar C = Comes with locking collar
14 3
WIDEINNER RINGADAPTERBEARING
NUMBERINGSYSTEM
1. Bearing Type WP=Adapter bearings with wide inner ring and locking collar
2. OD Type S = Spherical OD C = Cylindrical OD
3. Shaft Size 100 = 1st digit is in inches, and 2nd number is 1/16” ex. 100 = 1” 104 = 1.1/4” 014 = 14/16 = 7/8”
4. Seal Type G = Vanguard single lip seals V= Vanguard double lip seals T = Vanguard triple lip seals
5. Re-lube Feature P = Non-relubricatable R = Relubricatable
6. Locking collar C = Comes with locking collar
7. Special Feature 2 = Special feature
1. PREFIX TS2: Heat stabilization for up to 320˚ F (160˚ C) TS3: Heat stabilization for up to 390˚ F (200˚ C) TS4: Heat stabilization for up to 480˚ F (250˚ C)
2. TYPE 6: Single row deep groove ball bearings 8, WC8: Single row deep groove ball bearings BL: Maximum capacity DE & DF: Special double row ball bearings SC & SX: Special single row ball bearings R: Inch series TMB: Thermal mechanical bearing
3. INTERNAL DESIGN A: Internal redesign, from A onward U: Universal seal groove for open bearings
4. CHAMFER Xn: Special chamfer, from 1 onward (X1, X2 . . .)
5. CAGE No Symbol: Pressed steel cage J: Pressed steel cage T1: Phenolic cage T2: Nylon cage L1: Machined brass cage
6. SEAL OR SHIELD No Symbol: Open Type LB, LLB: Non-contact rubber seal LU, LLU: Double-lip contact rubber seal LH,LLH: Light contact rubber seal LUA,LLUA: Polyacrylic rubber seal LUA1,LLUA1: Fluorocarbon rubber seal Z, ZZ: Shield Z1, ZZ1: Stainless steel shield ZA, ZZA: Removable shield
7. RING MODIFICATION N: Snap ring groove on outer ring, but without snap ring NR: Snap ring groove on outer ring, snap ring included /X.XX: Special bore, XX.XX in mm; Ex. 5/16” bore, /7.938 /XX.X: Special O.D., size XX.X in mm
8. INTERNAL CLEARANCE C1: Radial clearance less than C2 C2: Radial clearance less than normal C3: Radial clearance greater than normal C4: Radial clearance greater than C3 C5: Radial clearance greater than C4 CSXX: Special radial clearance; XX is mean value in 0.001 mm
units
9. TOLERANCE P6: ISO class 6 (equivalent to ABEC 3) P5: ISO class 5 (equivalent to ABEC 5) P4: ISO class 4 (equivalent to ABEC 7) PXn: Special tolerance, from 1 onward (PX1, PX2 . . .) Vn: Special requirement, from 1 onward (V1, V2 . . .)
10. PRELUBRICANT (Typical) 1E: Exxon Andok C grease 1W: Anderson Oil Winsor Lube L-245X, MIL-L-6085A 2AS: Shell Alvania #2 grease, MIL-G-18709A 2E: Exxon Unirex N3 3AS: Shell Oil Alvania #3 grease 5C: Chevron SRI #2 grease, MIL-G-3545C 5K: Kyodo Yushi Multemp SRL 5S: Shell Aeroshell #7 grease, MIL-G-23827A 9B: Mobil 28, MIL-G-81322 L627: Exxon Polyrex EM
RADIALBALL
BEARINGNUMBERING
SYSTEM
SEAL STRUCTURE AND FEATURESTYPE DESIGNATION
● The seal edge forms a double-lip. The inner lip touches the V-slot side of the inner ring’s seal surface. There is a slight gap between the inner ring and the outer lip which produces the laby-rinth effect. Even if friction causes the inner lip to wear, the outer lip constricts around the inner ring to compensate, and thus constantly preserving the perfect sealing effect.
● Due to the fact that it is a contact type seal bearing, the torque will be a little greater but the seal will provide the optimum protection from dust penetration.
Z ZZ
LB LLB
LU LLU
● The sealed V-slot around the inner ring creates an air and/or grease pocket which increases the labyrinth effect.
● This is a non-contact, low-friction torque type bearing assembly, which can be used effectively for general protection.
● Both sides of the seal edge have a circular concaved surface which creates several narrow-wide gaps along the V-shaped groove of the inner ring’s sealed surface. The unique design ensures a perfect labyrinth effect.
● This non-contact, low friction bearing assembly requires very little torque and is highly resistant to dust build-up.
2 15
1. PREFIX No Symbol: High carbon chrome bearing steel (equivalent to AISI E52100) F: Martensitic stainless steel (equivalent to AISI 440C)
2. SERIES 67, 68: Metric series 69, 60: Metric series 62, 63: Metric series R: Inch series W: Wider than standard width (sealed type) WA: Non-standard sizes RA: Wider than standard width of inch series (open and sealed
types) FL: Flanged outer ring FLA: Flanged outer ring, provided non-standard flange dimensions
3. CAGE No Symbol: Pressed steel cage J1: Pressed stainless steel cage T1: Phenolic resin cage T2: Nylon cage
4. SEAL OR SHIELD No symbol: Open Type Z, ZZ: Steel shield(s) ZA, ZZA: Removable steel shield(s) ZA1, ZZA1: Removable stainless steel shield(s) Z1, ZZ1: Stainless steel shield(s) LB, LLB: Non-contact type rubber seal(s) LU, LLU: Contact type rubber seal(s)
5. INTERNAL CLEARANCE No Symbol: Normal clearance C2: Clearance less than normal C3: Clearance greater than normal C4: Clearance greater than C3 C2S: Low group of C2 clearance CNS: Low group of normal clearance CNM: Medium group of normal clearance CNL: High group of normal clearance C3S: Low group of C3 clearance C3M: Medium group of C3 clearance C3L: High group of C3
6. TOLERANCE No Symbol: ISO class 0 (equivalent to ABEC 1) P6: ISO class 6 (equivalent to ABEC 3) P5: ISO class 5 (equivalent to ABEC 5) P4: ISO class 4 (equivalent to ABEC 7) P2: ISO class 2 (equivalent to ABEC 9) P5A: ISO class 5A P4A: ISO class 4A PS5: NTN PS class 5 PS4: NTN PS class 4 PX1: Special tolerance
7. PRELUBRICANT 1K: Kyodo Yushi Multemp PS No. 2 2AS: Shell Alvania 2 1E: Exxon Andok C 6K: Klüber Isoflex Super LDS18 5C: Chevron SRI2 5K: Kyodo Yushi Multemp SRL 1W: Anderson Oil Winsor Lube L245X (oil) L627: Exxon Polyrex EM
10. SPECIAL SPECIFICATION V1...Vn
RW R(A)W-ZA R(A)W-ZZA FLRW FLR(A)W-ZA FLR(A)W-ZZA
676869606263
R(A)
W(A)67ZAW68Z(A)
(W)69Z(A)(W)60Z(A)
62Z63Z
R(A)-Z(A)
W(A)67ZZAW68ZZ(A)
(W)69ZZ(A)(W)60ZZ(A)
62ZZ63ZZ
R(A)-ZZ(A)
FL67FL68FL69FL60FL62FL63
FLR(A)
FL(A)W(A)67ZAFLW68Z(A)
FL(W)69Z(A)FL(W)60Z(A)
FL62ZFL63Z
FLR(A)-Z(A)
FL(A)W(A)67ZZAFLW68ZZ(A)
FL(W)69ZZ(A)FL(W)60ZZ(A)
FL62ZZFL63ZZ
FLR(A)-ZZ(A)
Open Type Single Shield Type Double Shield Type Open Type Single Shield Type Double Shield TypeFlanged Outer Ring
MICROBEARING
NUMBERINGSYSTEM
1. Bearing Type D=Disc Bearing
2. OD Type S = Spherical OD C = Cylindrical OD
3. Bearing Series 209 = Heavy Duty Series and bore size
4. Seal Type TT = 2 Vangaurd triple lip seals
5. Re-lube Feature R = Relubricatable
6. Special Features 2 = Special feature
DISCBEARING
NUMBERINGSYSTEM
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