Bearing Quick Reference Guide - NTN Canada

1 NUMBERING SYSTEM Quick Reference GUIDEFEATURING NOMENCLATURE GUIDELINES FOR: MICRO BEARINGS RADIAL BALL BEARINGS ANGULAR CONTACT BALL BEARINGS SELF-ALIGNING BALL BEARINGSCYLINDRICAL roller BEARINGSTAPERED roller BEARINGSSPHERICAL roller BEARINGSBALL AND roller THRUST BEARINGSMOUNTED Bearing UNITS ULTRA-CLASS MOUNTED Bearing UNITSCORROSION RESISTANT Bearing UNITSSPHERICAL Bearing HOUSING UNITS PREFIX AND SUFFIX INTERCHANGE Bearing SERIES up with the latest information in Bearing technology is crucial to the success of your operations. That's why NTN Bearing Corporation of america provides customers a wide range of training and support options to educate your team with the most efficient and profitable Bearing service you source and use NTN Bearing products, we can assist you with your Bearing needs with the tools, format, location, and pace that work best for your company .

2 Contact your regional NTN sales representative for more information or to schedule a training session. NTN DISTRIBUTOR TRAINING OPPORTUNITIES Three days of in-depth instruction from NTN engineers at our Canadian headquarters Includes: - Lectures & break-outs for general and hands on training -Tour of a manufacturing facility 6 module web-based product training Provides product and part number overview to help new people to the industry On-site, mobile training unitUnited States Technical Support: (800) 323-2358 Customer Relations and Sales: (800) 323-2358 NTN Contact InformationCanada Technical Support: (800) 405-6720 Customer Relations and Sales: (888) 412-4122 Table of ContentsMICRO RADIAL BALL ANGULAR CONTACT BALL ANGULAR CONTACT BALL SELF-ALIGNING BALL CYLINDRICAL roller TAPERED roller SPHERICAL roller BALL AND roller THRUST MOUNTED Bearing ULTRA-CLASS MOUNTED Bearing CORROSION RESISTANT Bearing SPHERICAL HOUSED Bearing AND SUFFIX INDUSTRY Bearing SERIES INDUSTRY 13 Reference Guidepg.

3 2 Basic NumberSeal/ ShieldMicro Bearing Numbering SystemFFLT2P51K685C4 ZZAP refixSeriesLubricantPrecisionClearanceCa ge1. PREFIXNo Symbol: High carbon chrome Bearing steel (equivalent to AISI E52100)F: Martensitic stainless steel (equivalent to AISI 440C)2. SERIES67, 68: Metric Series69, 60: Metric Series62, 63: Metric SeriesR: Inch SeriesW: Wider than standard width (sealed type)WA: Non- standard sizesRA: Wider than standard width of inch series (open and sealed types)FL: Flanged outer ringFLA: Flanged outer ring, provided non-standard flange dimensions3. CAGE No symbol: Pressed steel cageJ1: Pressed stainless steel cageT1: Phenolic resin cageT2: Nylon cageJR: Pressed steel (riveted)JS: Pressed steel (spot welded)JA: Pressed steel (bent finger)4.

4 SEAL OR SHIELD*No symbol: Open typeZ, 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 rubber seal(s)LU, LLU: Contact rubber seal(s)SA, SSA: Non-contact nylon seal(s)*One letter signifies one shield or seal; two letters signifies two shields or seals5. INTERNAL CLEARANCENo symbol: Normal clearanceC2: Clearance less than normalC3: Clearance greater than normalC4: Clearance greater than C3C2S: Low group of C2 clearanceCNS: Low group of normal clearanceCNM: Medium group of normal clearanceCNL: High group of normal clearanceC3S: Low group of C3 clearanceC3M: Medium group of C3 clearanceC3L: High group of C3 clearance6.

5 PRECISIONNo 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 5AP4A: ISO class 4 APS5: NTN PS class 5PS4: NTN PS class 4PX1: Special Tolerance7. LUBRICANT1K: Kyodo Yushi Multemp PS No. 22AS: Shell Alvania 21E: Exxon Andok C6K: Kluber Isoflex Super LDS185C: Chevron SRI25K: Kyodo Yushi Multemp DRL1W: Anderson Oil Windsor Lube L245X (oil)L627: Exxon Polyrex EM8. SPECIAL : Special features from 1 onward (V1, V2,..)1. PREFIXNo Prefix: Heat stabilized up to 250 F (120 C)TS2: Heat stabilized up to 320 F (160 C)TS3: Heat stabilized up to 390 F (200 C)TS4: Heat stabilized up to 480 F (250 C) 5S: Ceramic rolling elements2.

6 TYPE6: Single row deep groove ball bearing8, WC8: Single row deep groove ball bearingBL: Maximum capacityDE, DF: Special double row ball bearingSC, SX: Special single row ball bearingR: Inch seriesTMB: Long life thermal mechanical bearing3. SERIES8: ISO 18 series9: ISO 19 series0: ISO 10 series2: ISO 02 series3: ISO 03 series4. BORE00: 10mm01: 12mm02: 15mm03: 17mm04+: # * 5 = Bore diameter in mm (ex. 04=20 mm) 5. INTERNAL DESIGNA: Internal design change, from A onwardU: Universal seal groove for open bearingsC: Capacity up bearings 6. CHAMFERXn: Special chamfer, from 1 onward (X1, )7. CAGENo Symbol: Standard cageJ: Pressed steel cageT1: Phenolic cageT2: Nylon cageL1: Machined brass cage JR: Pressed steel (riveted)JA: Pressed steel (bent finger) 8.

7 SEAL OR SHIELDNo Symbol: Open typeLB, LLB: Non-contact type rubber seal(s)LU, LLU: Contact type rubber seal(s)LH, LLH: Light contact rubber sealLUA, LLUA: Polyacrylic sealLUA1, LLUA1: Flurocarbon sealZ, ZZ: Steel shield(s)Z1, ZZ1: Stainless steel shield(s)ZA, ZZA: Removable steel shield(s)ZA1, ZZA1: Removable stainless steel shield(s)9. RING MODIFICATIONN: Snap ring groove on outer ring, without snap ringNR: Snap ring groove on outer ring, snap ring included NRS: Snap ring and groove on opposite : Special dimension, in mm (Ex. 5/16 bore = )10. INTERNAL CLEARANCENo symbol: Normal clearanceC1: Clearance less than C2C2: Clearance less than normalC3: Clearance greater than normalC4: Clearance greater than C3C5: Clearance greater than C4C3L: Low group of C3 clearance CSxx: Clearance special (xx is mean value mm)11.

8 PRECISIONNo 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)PXn: Special radial tolerance from 1 onward (PX1, PX2,..) 12. LUBRICANT2AS: Shell Alvania 22E: Exxon Unirex N33AS: Shell Oil Alvania #3 grease5C: Chevron SRI#2 grease (MIL-G-18709A)L627: Exxon Polyrex EM 0G: No greaseRadial Ball Bearing Numbering SystemPrefixTypeBore DiameterInternal DesignSeal/ShieldClearancePrecisionLubri cant6203X1 LLBC3P52 ASSeriesChamferCageRing 3 Angular Contact Ball Bearing Numbering System1. PREFIXNo Prefix: Heat stabilized up to 250 F (120 C) TS2: Heat stabilized up to 320 F (160 C)TS3: Heat stabilized up to 390 F (200 C)TS4: Heat stabilized up to 480 F (250 C)5S: Ceramic rolling elements2.

9 TYPE3: Double row angular contact w/ filling slot5: Double row angular contact w/o filling slot7: Angular contact ball bearingBNT: High speed angular contact bearingBST: Ball screw supportHSA: High speed angular contact bearingHSB: High speed angular contact bearingHSE: High speed angular contact bearingSF: Special angle row angular contactDE, DF: Special double row angular contact3. SERIES8: ISO 18 series9: ISO 19 series0: ISO 10 series2: ISO 02 series3: ISO 03 series 4. BORE00: 10mm01: 12mm02: 15mm03: 17mm04+: # * 5 = Bore diameter in mm (ex. 04=20 mm)5. CONTACT ANGLENo symbol: Contact angle 30 B: Contact angle 40 C: Contact angle 15 6. CHAMFERXn: Special chamfer, from 1 onward (X1, )7.

10 CAGENo Symbol: Standard cageJ: Pressed steel cageL1: Machined brass cageT1: Phenolic cageT2: Nylon cage8. DUPLEX ARRANGEMENTDB: Duplex pair, back to back mountingDF: Duplex pair, face to face mountingDT: Duplex pair, tandem mountingG: Single Bearing , flush ground, universal mountGD2: Pair of universally mountable bearings+A: Spacer (A is nominal width of spacer in mm)9. PRELOADGL: Light preloadGN: Normal preloadGM: Medium preloadGH: Heavy preloadGn: Special Preload10. PRECISIONP6: 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)PXn: Special precision, from 1 onward (PX1, PX2.)