NSK Bearing Part Number
NSK bearing part number system
| EXAMPLE: 77206M1AC4ES41 |
Part number system:
| Prefix | Suffix | Definition |
| . | +AH | WITHDRAWAL OR REMOVAL SLEEVE. |
| . | +H | ADAPTER SLEEVE. |
| . | +HJ | STABILIZING RING/ CYLINDRICAL ROLLER BEARINGS. |
| . | +K | OUTER RING SPACER, TAPERED ROLLER BEARINGS. |
| . | +KL | INNER AND OUTER RING SPACER, TAPERED ROLLER BEARINGS. |
| . | +L | INNER RING SPACER, TAPERED ROLLER BEARINGS. |
| . | -008 | BORE SIZE, 1/2 INCH DIAMETER. |
| . | -010 | BORE SIZE, 5/8 INCH DIAMETER. |
| . | -100 | BORE SIZE, 1 INCH DIAMETER. |
| . | -107 | BORE SIZE, 1-7/16 INCH DIAMETER. |
| . | -12 | BORE SIZE, 3/4 INCH DIAMETER. |
| . | -13M | BORE SIZE, 13 MM DIAMETER. |
| . | -14 | BORE SIZE, 7/8 INCH DIAMETER. |
| . | -625 | BORE SIZE, 0.6250 INCH DIAMETER. |
| . | -8 | BORE SIZE, 1/2 INCH DIAMETER. |
| . | 1 | 1/8 FULL. |
| . | 2 | 1/4 FULL. |
| . | 3 | 3/8 FULL. |
| . | 4 | 1/2 FULL. |
| . | 5 | 5/8 FULL. |
| . | 6 | 3/4 FULL. |
| . | 7 | 7/8 FULL. |
| . | 8 | 100 PERCENT FULL |
| . | 9 | DIP. |
| . | A | INTERNAL REDESIGN. |
| . | A | 30 DEGREE CONTACT ANGLE, ANGULAR CONTACT BALL BEARINGS. |
| . | AB | ANDOK B. |
| . | AC | ANDOK C. |
| . | AE | AEROSHELL 15. |
| . | AE3 | ABEC-3 TOLERANCE. |
| . | AE5 | ABEC-5 TOLERANCE. |
| . | AF | AEROSHELL 17. |
| . | AK | ANDOK 260. |
| . | AN | ANDEROL L-423 OIL. |
| . | AR | AEROSHELL 5. |
| . | AS | AEROSHELL 7. |
| . | AT | AEROSHELL 16. |
| . | AW | AEROSHELL 22. |
| . | AX | AEROSHELL 6. |
| . | B | INTERNAL REDESIGN. |
| . | B | 40 DEGREE CONTACT ANGLE, ANGULAR CONTACT BALL BEARINGS. |
| . | BS | X8388A (BATCO) . |
| . | BT | BEACON 325. |
| . | C | INTERNAL REDESIGN. |
| . | C | 15 DEGREE CONTACT ANGLE, ANGULAR CONTACT BALL BEARINGS. |
| . | C2 | TIGHT FIT, AFBMA CLASS 2. |
| . | C3 | LOOSE FIT, AFEMA CLASS 3. |
| . | C4 | EXTRA LOOSE FIT, AFBMA CLASS 4. |
| . | CA | SPHERICAL ROLLER BEARING. |
| . | CC | STANDARD, NON-INTERCHANGEABLE FIT, CYLINDRICAL ROLLER BEARINGS. |
| . | CC2 | LESS THAN STANDARD NON-INTERCHANGEABLE FIT, CYLINDRICAL BEARINGS. |
| . | CC4 | GREATER THAN CC3 FIT, CYLINDRICAL ROLLER BEARINGS. |
| . | CCS | GREATER THAN CC FIT, CYLINDRICAL ROLLER BEARINGS. |
| . | CD | SPHERICAL ROLLER BEARING. |
| . | CE | ELECTRIC MOTOR QUALITY BEARING AND FIT. |
| . | CH | CHEVRON OHT. |
| . | CHS | WATER PUMP BEARING WITH SLINGER RING. |
| . | CM | ELECTRIC MOTOR QUALITY BEARING AND FIT. |
| . | CT | ELECTRIC MOTOR QUALITY BEARING AND FIT. |
| . | D | STEEP CONTACT ANGLE, TAPERED ROLLER BEARING. |
| . | DA | DOW CORNING DC99 - NO. 2. |
| . | DB | SUPERNAL GREASE NO. 72832. |
| . | DB | DOW CORNING FS3451 - NO. 2. |
| . | DB | DUPLEX PAIR, BACK-TO-BACK MOUNTING. |
| . | DDU | TWO RUBBER CONTACT SEALS. |
| . | DE | DC41. |
| . | DF | DC44. |
| . | DH | DOW CORNING 510. |
| . | DH | WATER PUMP BEARING, DULITED AND HANED PARTS. |
| . | DP | DUPLEX PAIR, FACE-TO-FACE MOUNTING. |
| . | DS | DC FS 1291. |
| . | DT | DC33. |
| . | DT | DUPLEX PAIR, TANDEM MOUNTING. |
| . | DU | SINGLE RUBBER CONTACT SEAL. |
| . | DV | DC FS 1292. |
| . | E | BEARING WITH SLOT OR KEYWAY. |
| . | E100 | SPECIAL BEARINGS (MIL-B-17931C) . |
| . | E101 | GREASE QUANTITY AND TEFLON SEAL ELEMENT, SPECIAL. |
| . | E4 | OUTER RING RELUBRICATION FEATURE, SPHERICAL BEARINGS. |
| . | ES11 | SPECIAL GREASE VOLUME. |
| . | ES12 | SPECIAL CARTON MARKING. |
| . | ES13 | SPECIAL CORNER RADIUS. |
| . | ES15 | SPECIAL END PLAY. |
| . | ES16 | SPECIAL PROCESSING. |
| . | ES17 | SPECIAL CLEANING. |
| . | ES18 | RADIAL PLAY LIMITS SPECIAL. |
| . | ES19 | SPECIAL CLEANING, LUBRICATION. |
| . | ES20 | RADIAL PLAY, GAGING LOADS, SPECIAL. |
| . | ES21 | HEAT STAB, FOR 325°F OPERATION. |
| . | ES22 | XT RADIAL PLAY, SPECIAL. |
| . | ES24 | (MIL-B-17931A) , AMENDMENT 2, LOW NOISE LEVEL. |
| . | ES25 | HIGH-SPEED TEST. |
| . | ES26 | DULITE PROCESSED. |
| . | ES27 | END PLAY AND TILT LIMITS, SPECIAL. |
| . | ES28 | DULITE PROCESSED. |
| . | ES29 | SPECIAL SHIELD MARKING. |
| . | ES3 | 100 PERCENT SPEED TEST, LOW NOISE LEVEL. |
| . | ES30 | QUALITY AUDIT, SPECIAL. |
| . | ES31 | TORQUE LIMITS, SPECIAL. |
| . | ES32 | SPECIAL INSPECTION. |
| . | ES33 | LOW NOISE LEVEL. |
| . | ES34 | ULTRASONIC CLEANING. |
| . | ES35 | FLUSHNESS TOLERANCE SPECIAL. |
| . | ES36 | SPECIAL IDENTIFICATION. |
| . | ES37 | DULITE SHIELD. |
| . | ES38 | SPECIAL END PLAY. |
| . | ES39 | ELECTRONIC NOISE TESTING. |
| . | ES40 | HEAT STABILIZED, SPECIAL. |
| . | ES41 | STABILIZATION FOR 375 DEG F OPERATION. |
| . | ES42 | "HS 2" MARKING ON OUTER. |
| . | ES43 | GREASE CONTROL, SPECIAL. |
| . | ES44 | REDUCED INSPECTION LIMITS. |
| . | ES45 | LAPPED INNER FACE. |
| . | ES46 | OVERSIZE O.D. ' S. |
| . | ES47 | SPECIAL FOR RAILROAD APPLICATION. |
| . | ES48 | SPECIAL O.D. TOLERANCE. |
| . | ES49 | SHIELD IDENTIFICATION, SPECIAL. |
| . | ES50 | REWORK IDENTIFICATION. |
| . | ES51 | SPECIAL TOLERANCES. |
| . | ES52 | SOLVENT CLEAN PARTS , SPECIAL . |
| . | ES53 | SPECIAL PROCESSING. |
| . | ES54 | SPECIAL FOR RAILROAD APPLICATIONS. |
| . | ES55 | SPECIAL 77R6. / |
| . | ES56 | RADIAL LOOSENESS CHECK ,_ SPECIAL . |
| . | ES57 | SPECIAL O.D. CORNER. |
| . | ES58 | HIGH POINT MARKING ON INNER RING. |
| . | ES59 | O.D. CODING. |
| . | ES6 | CERTIFIED QUALITY CONTROL. |
| . | ES60 | SPECIAL GREASING. |
| . | ES61 | ES-41 AND SPECIAL GREASING. |
| . | ES62 | SHIELD OR SEAL ASSEMBLY, SPECIAL. |
| . | ES63 | SPECIAL 7038. |
| . | ES65 | SPECIAL MARKING INSTRUCTIONS. |
| . | ES66 | SPECIAL IDENTIFICATION. |
| . | ES67 | SPECIAL GREASE AND QUANTITY. |
| . | ES68 | SPECIAL GREASE QUANTITY. |
| . | ES7 | SPECIAL PROCESS, SPECIAL CARTON MARKING. |
| . | ES70 | SPECIAL MARKING. |
| . | ES71 | SPECIAL WIDTH TOLERANCE. |
| . | ES72 | SPECIAL LUBRICATION. |
| . | ES73 | SPECIAL PROCESSING. |
| . | ES74 | SPECIAL RING MARKING. |
| . | ES75 | BEARINGS SERIAL NUMBERED. |
| . | ES82 | RELUBE TYPE SHIELDS. |
| . | ES83 | ELECTRO-GALVANIZING . |
| . | ES84 | SPEC, INTERNAL CLEARANCE AND SPECIAL GREASE QUANTITY. |
| . | ES85 | SPECIAL GREASE QUANTITY. |
| . | ES9 | (MIL-B-17931A) , AMENDMENT 1, LOW NOISE LEVEL. |
| . | ESI | HAND SPIN TEST, LOW TORQUE. |
| . | ESS | SHIELD CLEARANCE 0.003 INCH, SPEC, TOLERANCE. |
| . | ESS | LOW NOISE LEVEL. |
| . | F | SINGLE SHIELD, DOUBLE-ROW BALL BEARINGS. |
| . | FF | TWO SHIELDS, DOUBLE-ROW BALL BEARINGS. |
| . | FM | FISKE LUBRIPLATE - MULTI-LUBE A. |
| . | FT | FISKE LUBRIPLATE 210. |
| . | G | SNAP RING ON BEARING. |
| . | GNR | SNAP RING GROOVE ON BEARING, NO SNAP RING. |
| . | GS | SNAP RING ON SAME SIDE OF BEARING AS SHIELD. |
| . | HP | HUMBLE OIL UNIVIS P38. |
| . | HX | HUMBLE OIL UNIREX NO. 2. |
| . | J | PRESSED STEEL RETAINER, TWO PIECE RIBBON TYPE. |
| . | K | TAPERED BORE BEARING 1:12. |
| . | K30 | TAPERED BORE BEARING 1:30. |
| . | KH | KEYSTONE 89H. |
| . | KY | DUPONT, KRYTOX 240AC. |
| . | LU | LUBRIKO M24. |
| . | M | MACHINED BRONZE RETAINER. |
| . | M | MEDIUM FIT, AFBMA CLASS 0. |
| . | MT | MOBIL-TEMP £1 SOCONY VACUUM. |
| . | N | SNAP RING GROOVE IN OUTER RING. |
| . | NF | NON-FLUID OIL CP. F924. |
| . | NG | NON-FLUID OIL CO. G-60. |
| . | NR | NOX - RUST 509. |
| . | NR | SNAP RING IN OUTER RING. |
| . | NS | NON-FLUID OIL CO. S-59. |
| . | NW | NON-FLUID OIL CO. W-56. |
| . | OS2 | WATER PUMP BEARING, SHAFT 0.002 INCH OVERSIZE. |
| . | OS3 | WATER PUMP BEARING, SHAFT 0.003 INCH OVERSIZE. |
| . | PE | PETROLATUM |
| . | RR | O.D. RIDING TRASH GUARD RUBBER CONTACT SEALS. |
| . | RS | FACE RIDING RUBBER CONTACT SALES. |
| . | RY | RYKON 12. |
| . | SA | SHELL ALVANIA $2 |
| . | SB | SHELL XSG6409. |
| . | SC | SHELL CYPRINA £3. |
| . | SD | SHELL DARINA J2. |
| . | SE | SHELL DARINA EP. |
| . | SF | SHELL DARINA FL. |
| . | SG | STANDARD GREASE CODE. |
| . | SL | SHELL ALVANIA 13. |
| . | SO | STANOIL 15. |
| . | SP | SHELL ALVANIA $2 EP. |
| . | SW | SOUTHWEST GREASE AND OIL CO., CODE 5682. |
| . | SX | SHELL DARINA AX. |
| . | T | FACE RIDING TRASH GUARD RUBBER CONTACT SEAL. |
| . | T | TIGHT FIT, AFBMA CLASS 2. |
| . | TB | TEXACO PREMIUM BRB. |
| . | TC | TEXAS CAPELLA B. |
| . | TE | TEXAS EP 2324 HI-TEMP. |
| . | TH | TEXAS 1999 HI-TEMP. |
| . | TL | ASHLAND OIL TECTYL 900. |
| . | TM | TEMPLUBE 124. |
| . | TR | TEXAS REGAL STARFAK AFB-2 . |
| . | TT | TWO FACE RIDING TRASH GUARD RUBBER CONTACT SEALS. |
| . | TU | TEXAS 1996 UNI-TEMP 500. |
| . | TX | TEXAS 1692. |
| . | UC | SUPERMIL GREASE NO. 31052. |
| . | UF | ASU 40. |
| . | UN | UNOBA JL UNION OIL. |
| . | US | ASU 06752 (AMERICAN OIL) . |
| . | UT | ASU 100. |
| . | V | LABYRINTH RUBBER SEAL . |
| . | VA | CHEVRON BRB2 |
| . | VS | CHEVRON SRI |
| . | W | TWO LABYRINTH RUBBER SEALS. |
| . | W | PRESSED STEEL RETAINER, ONE PIECE TYPE. |
| . | WN | WINDSOR L245X |
| . | X | REDESIGNED BOUNDARY DIMENSION OF LESS THAN + 1 MM. |
| . | XL | EXTRA LOOSE FIT, AFBMA CLASS 3. |
| . | XT | EXTRA TIGHT FIT, LESS THAN AFBMA CLASS 2. |
| . | Y | PRESSED BRASS RETAINER, TWO PIECE, RIBBON TYPE. |
| . | Z | SINGLE SHIELD. |
| . | ZZ | GREASE SPE CIS PART OF ES NUMBER. |
| . | ZZ | TWO SHIELDS. |
| 7 | . | SINGLE SHIELD. |
| 77 | . | TWO SHIELDS. |
| 8 | . | FELT SEAL. |
| 87 | . | ONE FELT SEAL, ONE SHIELD. |
| 88 | . | TWO FELT SEALS. |
| 89 | . | ONE FELT SEAL, ONE TEFLON SEAL. |
| 9 | . | TEFLON SEALS. |
| 99 | . | TWO TEFLON SEALS. |
| H | . | HEAVY SERIES CUP OR CONE, TAPERED ROLLER BEARINGS. |
| HH | . | EXTRA HEAVY SERIES CUP OR CONE, TAPERED ROLLER BEARINGS. |
| HM | . | MEDIUM-HEAVY SERIES CUP OR, CONE , TAPERED ROLLER BEARINGS. |
| L | . | LIGHT SERIES CUP OR CONE, TAPERED ROLLER BEARINGS. |
| LL | . | EXTRA LIGHT SERIES CUP OR CONE, TAPERED ROLLER BEARINGS. |
| LM | . | MEDIUM-LIGHT SERIES CUP OR CONE, TAPERED ROLLER BEARINGS. |
| M | . | MAX-TYPE, FILLING SLOT BALL BEARINGS. |
| M | . | MEDIUM SERIES CUP OR CONE, TAPERED ROLLER BEARINGS. |
| MS | . | SHIELD AND LOADING SLOT ON SAME SIDE, BALL BEARINGS. |
| N | . | CYLINDRICAL BEARING, DOUBLE FLANGED INNER, OPEN OUTER. |
| NF | . | CYLINDRICAL BEARING, DOUBLE FLANGED INNER, SINGLE FLANGED OUTER. |
| NH | . | CYLINDRICAL BEARING, TWO-PIECE INNER, DOUBLE FLANGED OUTER. |
| NJ | . | CYLINDRICAL BEARING, SINGLE, FLANGED INNER, DOUBLE FLANGED OUTER. |
| NN | . | CYLINDRICAL BEARING, DOUBLE-ROW, FLANGED INNER, OPEN OUTER. |
| NU | . | CYLINDRICAL BEARING, OPEN INNER, DOUBLE FLANGED OUTER. |
| R | . | INCH DIMENSION SERIES BALL BEARINGS. |
| RA | . | POWER TRANSMISSION BALL BEARINGS, PRELUBRICATED. |
| RAG | . | POWER TRANSMISSION BALL BEARINGS, RELUBRICATEABLE. |
| S | . | CARTRIDGE BEARING SERIES. |
| SB | . | POWER TRANSMISSION BEARING, WIDE INNER, PRELUBRICATED. |
| SBG | . | POWER TRANSMISSION BEARING, WIDE INNER, RELUBRICATEABLE. |
| SE | . | ECCENTRIC LOCKING COLLAR FOR POWER TRANSMISSION. |
| SF | . | FOUR-BOLT FLANGE UNIT, STANDARD, RELUBRICATEABLE. |
| SFC | . | FOUR-BOLT FLANGE UNIT, RA UNIT, PRELUBRICATED. |
| SFT | . | TWO-BOLT FLANGE UNIT, STANDARD, RELUBRICATEABLE. |
| SFTC | . | TWO-BOLT FLANGE UNIT, RA UNIT, PRELUBRICATED. |
| SP | . | STANDARD HEIGHT PILLOW BLOCK, RELUBRICATEABLE. |
| SPC | . | STANDARD HEIGHT PILLOW BLOCK, RA UNIT, PRELUBRICATED. |
| SPEC | . | REVISED HEIGHT PILLOW BLOCK, RA UNIT, PRELUBRICATED. |
| SPH | . | REVISED HEIGHT PILLOW BLOCK, RELUBRICATEABLE. |
| STU | . | TAKE-UP UNIT BLOCK, RELUBRICATEABLE. |
| STUC | . | TAKE-UP UNIT BLOCK, RA UNIT, PRELUBRICATED. |
| WC | . | FELT SEAL SERIES BEARINGS, WIDE OUTER RING. |
| X | . | SPECIAL BEARING SERIES. |
Previous page: Drilling Mud Pumps Bearings
Next page: NTN Bearings Prefix and Suffix