| Prefix | Suffix | Definition |
| . | ....B | 15-20% OF FREE SPACE WITHIN THE BEARING GREASED. |
| . | ....C | 20 TO 25% OF FREE SPACE WITHIN THE BEARING GREASED. |
| . | ....G | IBC GREASE SPECIFICATION |
| . | ....V | 70 TO 100% OF FREE SPACE WITHIN THE BEARING GREASED |
| . | ...A | 0-5% OF FREE SPACE WITHIN THE BEARING GREASED. |
| . | ...B | LOWER TOLERANCE BAND |
| . | ...F | 25 TO 30% OF FREE SPACE WITHIN THE BEARING GREASED. |
| . | ...H | 50 TO 70% OF FREE SPACE WITHIN THE BEARING GREASED |
| . | ...M | MIDDLE PART OF TOLERANCE BAND |
| . | ...M | 35-50% OF FREE SPACE WITHIN THE BEARING GREASED |
| . | ...T | UPPER TOLERANCE BAND |
| . | 2GS | THRUST BALL BEARING WITH 2 HOUSING WASHERS |
| . | 2RS | BEARING FITTED AT BOTH SIDES WITH SYNTHETIC RUBBER SEAL |
| . | 2RS1 | BEARING FITTED AT BOTH SIDES WITH SYNTHETIC RUBBER SEAL, RADIALLY-AXIALLY TOUCHING |
| . | 2RSD | BEARING FITTED AT BOTH SIDES WITH SYNTHETIC RUBBER SEAL, NON-TOUCHING |
| . | 2RSU | BEARING FITTED AT BOTH SIDES WITH SYNTHETIC RUBBER SEAL DOUBLE LIP. |
| . | 2VS | SEALING BOTH SIDES, RADIALLY TOUCHING, MATERIAL VITON. |
| . | 2WS | THRUST BEARING WITH TWO SHAFT WASHERS. |
| . | 2Z | SHIELD FITTED AT BOTH SIDES OF THE BEARING. |
| . | 2ZS | SHIELD FITTED WITH SPRING RING AT BOTH SIDES. |
| . | A | INTERNAL DESIGN CHANGE |
| . | A | 30 DEGREE CONTACT ANGLE |
| . | A..-.. | AXIAL CLEARANCE MIN-MAX (MICRO METERS) |
| . | A11 | ATCOATED INNER AND OUTER RING WITH THIN DENSE CHROME |
| . | A11 | ATCOATED INNER AND OUTER RING WITH THIN DENSE CHROME |
| . | A15 | ATCOATED INNER AND OUTER RING WITH THIN DENSE CHROME, STAINLESS STEEL ROLLING ELEMENTS AND CAGE. |
| . | A21 | ATCOATED INNER RING WITH THIN DENSE CHROME |
| . | A26 | ATCOATED INNER RING WITH THIN DENSE CHROME |
| . | B | INTERNAL DESIGN CHANGE. |
| . | B | 40 DEGREE CONTACT ANGLE |
| . | BE | 40 DEGREE CONTACT ANGLE, REINFORCED INNER CONSTRUCTION. |
| . | BT | SET OF 5 BEARINGS FOR <<<>> ARRANGEMENT. |
| . | C | INTERNAL DESIGN CHANGE |
| . | C | INTERNAL DESIGN CHANGE OF DOUBLE ROW RADIAL SPHERICAL ROLLER BEARINGS. |
| . | C | 15 DEGREE CONTACT ANGLE |
| . | C..-.. | RADIAL INTERNAL CLEARANCE MIN.-/MAX (MICRO METERS) |
| . | C...H | RADIAL INTERNAL CLEARANCE IN THE UPPER HALF OF MENTIONED GROUP (EG C2H). |
| . | C..L | RADIAL INTERNAL CLEARANCE IN THE LOWER HALF OF MENTIONED GROUP (EG C3L). |
| . | C..M | RADIAL INTERNAL CLEARANCE THE TWO MIDDLE QUARTERS OF STATED GROUP (EG C3M). |
| . | C..P | RADIAL INTERNAL CLEARANCE OF UPPER HALF OF STATED GROUP AND LOWER HALF OF THE HIGHER GROUP (EG C2P). |
| . | C1 | RADIAL INTERNAL CLEARANCE LESS THAN C2 |
| . | C2 | RADIAL INTERNAL CLEARANCE LESS THAN NORMAL |
| . | C2H | RADIAL INTERNAL CLEARANCE IN THE UPPER HALF (GREATER VALUES) OF C2 |
| . | C3 | RADIAL INTERNAL CLEARANCE GREATER THAN NORMAL. |
| . | C4 | RADIAL INTERNAL CLEARANCE GREATER THAN C3 |
| . | C5 | RADIAL CLEARANCE GREATER THAN C4. |
| . | CA | INTERNAL DESIGN CHANGE OF SPHERICAL ROLLER BEARING AND MASSIVE BRASS CAGE. |
| . | CA | 15 DEGREE ANGLE, HIGH SPEED VERSION |
| . | CJ | INTERNAL DESIGN CHANGE OF SPHERICAL ROLLER BEARING AND STEEL SHEET CAGE. |
| . | CN | CHEMICAL NIKEL PLATED. |
| . | CN | RADILA INTERNAL CLEARANCE NORMAL. |
| . | D | MODIFIED INTERNAL DESIGN. |
| . | D | DOUBLE OF LIGHT PRELOAD. |
| . | DB | TWO BEARINGS MATCHED FOR ASSEMBLY IN O-ARRANGEMENT (BACK TO BACK). |
| . | DF | TWO BEARINGS MATCHED FOR ASSEMBLY IN X-ARRANGEMENT (FACE TO FACE). |
| . | DT | TWO BEARINGS MATCHED FOR ASSEMBLY IN TANDEM ARRANGEMENT. |
| . | DU | TWO BEARINGS MATCHED FOR UNIVERSAL ASSEMBLY. |
| . | E | INTERNAL DESIGN CHANGE. |
| . | E | MODIFIED INTERNAL DESIGN FOR CYLINDRICAL ROLLER BEARINGS AND ANGULAR CONTACT BEARINGS. |
| . | E | 25 DEGREE CONTACT ANGLE. |
| . | EJP | CYLINDRICAL ROLLER BEARING WITH INCREASED CAPACITY AND MODIFIED INTERNAL DESIGN. |
| . | FBQ | SET OF 5 BEARINGS FOR <<<<> ARRANGEMENT |
| . | FU | SET OF 5 BEARINGS FOR UNIVERSAL MOUNTING. |
| . | G20 | BALL ISO GRADE G20 |
| . | G28 | BALL ISO GRADE G28 |
| . | G40 | BALL ISO GRADE G40 |
| . | G5 | BALL ISO GRADE G5 |
| . | GA91 | BEARLUB GA91 - UNIVERSAL GREASE -70 / +250 DEG C |
| . | GA92 | BEARLUB GA92 - UNIVERSAL GREASE -54 / +200 DEG C |
| . | GH60 | BEARING LUBE GH60 - HIGH SPEED GREASE -30 TO +175 DEGREES C |
| . | GH62 | BEARING LUBE GH62 - HIGH TEMPERATURE GREASE -30 TO +160 DEGREES C |
| . | GH81 | BEARING LUBE GH81 - HIGH TEMPERATURE GREASE -40 TO +250 DEGREES C |
| . | GN01 | BEARING LUBE GN01 - MULTI-PURPOSE GREASE -30 TO +120 DEGREES C |
| . | GN02 | BEARING LUBE GN02 - MULTI-PURPOSE GREASE -30 TO +130 DEGREES C |
| . | GN03 | BEARING LUBE GN03 - MULTI-PURPOSE GREASE -30 TO +140 DEGREES C |
| . | GS32 | BEARING LUBE GS32 - HIGH SPEED GREASE -55 TO +130 DEGREES C |
| . | GS33 | BEARING LUBE GS33 - HIGH SPEED GREASE -50 TO +120 DEGREES C |
| . | GS34 | BEARING LUBE GS34 - HIGH SPEED GREASE -40 TO +130 DEGREES C |
| . | GS35 | BEARING LUBE GS35 - HIGH SPEED GREASE -40 TO +130 DEGREES C |
| . | GS50 | BEARING LUBE GS50 - HIGH SPEED GREASE -55 TO +150 DEGREES C |
| . | H | HEAVY PRELOAD |
| . | H | 20 DEG CONTACT ANGLE |
| . | J | STEEL SHEET CAGE |
| . | JCN | STEEL CAGE CHEMICAL NIKEL PLATED |
| . | JH | STEEL CAGE (SNAP CAGE) |
| . | JN | STEEL CAGE (RIVITED) |
| . | JP | WINDOW TYPE STEEL CAGE |
| . | K | TAPERED BORE TAPER 1:12 |
| . | K... | CUSTOMER SPECIFICATION |
| . | K30 | TAPERED BORE, TAPER 1:30 |
| . | L | LIGHT PRELOAD |
| . | L | ALUMINIUM CAGE, LOCATED ON ROLLING ELEMENTS |
| . | LA | ALUMINIUM CAGE, LOCATED ON OUTER RING |
| . | LB | ALUMINIUM CAGE, LOCATED ON INNER RING |
| . | LP | ALUMINIUM CAGE, WINDOW-TYPE LOCATED ON ROLLING ELEMENTS |
| . | LPA | ALUMINIUM CAGE, WINDOW-TYPE, LOCATED ON OUTER RING |
| . | M | MEDIUM PRELOAD |
| . | M | MACHINED BRASS CAGE, LOCATED ON ROLLING ELEMENTS |
| . | M1 | MACHINED BRASS CAGE, CAGE WEB RIVETED, LOCATED ON ROLLING ELEMENTS |
| . | M1A | MACHINED BRASS CAGE, CAGE WEB RIVETED, LOCATED ON OUTER RING |
| . | MA | MACHINED BRASS CAGE, LOCATED ON OUTER RING |
| . | MAS | MACHINED BRASS CAGE, LOCATED ON OUTER RING, WITH LUBRICATION GROOVE |
| . | MB | MACHINED BRASS CAGE, LOCATED ON INNER RING |
| . | MC | MACHINED WINDOW TYPE BRASS CAGE, LOCATED ON RING |
| . | MP | MACHINED WINDOW TYPE BRASS CAGE, LOCATED ON ROLLING ELEMENTS |
| . | MPA | MACHINED WINDOW TYPE BRASS CAGE, LOCATED ON OUTER RING |
| . | MR | MACHINED WINDOW TYPE BRASS CAGE, LOCATED ON ROLLING ELEMENTS |
| . | N | SNAP RING GROOVE ON OUTER RING OUTSIDE DIAMETER |
| . | NR | N-TYPE WITH LOCATING SNAP RING |
| . | O... | IBC OIL SPECIFICATION |
| . | OX | BEARING PROTECTED WITH PRESERVATION OIL (NOT GREASED) IF NOT FOR STANDARD VERSION |
| . | P2 | BEARING WITH VERY HIGH FORM AND RUNNING ACCURACY (HIGHER THAN P4) ACCORDING TO ISO CLASS 2 |
| . | P2A | TOLERANCE CLASS ABEC 9 |
| . | P2H | BEARING WITH EXTREME HIGH RUNNING ACCURACY (ABEC 9) AND FORM TOLERANCE (ABEC 7) |
| . | P4 | DIMENSIONAL AND RUNNING ACCURACY ACCORDING TO ISO CLASS 4 (MORE ACCURATE THAN P5) |
| . | P4A | TOLERANCE CLASS ABEC 7 |
| . | P4A2H | TOLERANCE CLASS ABEC 7 + RADIAL INTERNAL CLEARANCE C2H |
| . | P5 | DIMENSIONAL AND RUNNING ACCURACY ACCORDING TO ISO CLASS 5 (MORE ACCURATE THAN P6) |
| . | P52 | ISO CLASS P5 + INTERNAL CLEARANCE C2 |
| . | P53 | ISO CLASS P5 + INTERNAL CLEARANCE C3 |
| . | P6 | DIMENSIONAL AND RUNNING ACCURACY ACCORDING TO ISO CLASS 6 |
| . | P62 | ISO CLASS P6 + INTERNAL CLEARANCE C2 |
| . | P63 | ISO CLASS P6 + INTERNAL CLEARANCE C3 |
| . | PA5 | TOLERANCE CLASS ABEC 5 |
| . | PA7 | TOLERANCE CLASS ABEC 7, NEW P4A |
| . | PA9 | TOLERANCE CLASS ABEC 9, NEW P2A |
| . | PU | SET OF FOUR BEARINGS FOR UNIVERSAL ASSEMBLY |
| . | QBC | SET OF FOUR BEARINGS IN << >> ARRANGEMENT (OLD QB) |
| . | QBT | SET OF FOUR BEARINGS IN <<<> ARRANGEMENT |
| . | QF | SET OF FOUR BEARINGS IN >><< ARRANGEMENT |
| . | QFT | SET OF FOUR BEARINGS IN ><<< ARRANGEMENT |
| . | QG6 | BEARING FOR ELECTRICAL MACHINE, NOISE TESTED |
| . | QG63 | BEARING FOR ELECTRICAL MACHINE, NOISE TESTED, INTERNAL CLEARANCE C3 |
| . | QT | SET FORFOUR BEARINGS IN <<<< ARRANGEMENT |
| . | QU | FOUR BEARINGS MATCHED FOR UNIVERSAL ASSEMBLY |
| . | RS | BEARING FITTED AT ONE SIDE WITH SYNTHETIC RUBBER SEAL |
| . | RS1 | BEARING FITTED AT ONE SIDE WITH SYNTHETIC RIBBER SEAL, RADIALLY-AXIALLY TOUCHING |
| . | RSD | BEARING FITTED AT ONE SIDE WITH SYNTHETIC RUBBER SEAL, NON-TOUCHING |
| . | RSU | BEARING FITTED AT ONE SIDE WITH SYNTHETIC RUBBER SEAL, DOUBLE LIPS |
| . | S0 | BEARING INNER AND OUTER RING STABILISED FOR HIGHER OPERATING TEMPERATURES UP TO 150 DEGREES C |
| . | S1 | BEARING INNER AND OUTER RING STABILISED FOR HIGHER OPERATING TEMPERATURES UP TO 200 DEGREES C |
| . | S2 | BEARING INNER AND OUTER RING STABILISED FOR HIGHER OPERATING TEMPERATURES UP TO 250 DEGREES C |
| . | S3 | BEARING INNER AND OUTER RING STABILISED FOR HIGHER OPERATING TEMPERATURES UP TO 300 DEGREES C |
| . | SP | ACCURACY CLASS (SUPER PRECISION), RADIAL INTERNAL CLEARANCE C1 |
| . | SPC2X | ACCURACY CLASS (SUPER PRECISION) RADIAL INTERNAL CLEARANCE REDUCED TO C2X |
| . | T | CAGE OF MACHINED PHENOLIC RESIN, LOCATED ON ROLLING ELEMENTS |
| . | TA | CAGE OF MACHINED PHENOLIC RESIN, LOCATED ON OUTER RING |
| . | TB | CAGE OF MACHINED PHENOLIC RESIN LOCATED ON INNER RING. |
| . | TBT | THREE BEARINGS MATCHED FOR ASSEMBLY IN TANDEM O ARRANGEMENT. <<> |
| . | TFT | THREE BEARINGS MATCHED FOR ASSEMBLY IN X-TANDEM ARRANGEMENT ><< |
| . | THB | SNAP CAGE OF PHENOLIC RESIN, LOCATED ON INNER RING. |
| . | TN | NYLON CGAE LOCATED ON INNER RING, POLYAMIDE 6.6 |
| . | TNH | NYLON SNAP CAGE LOCATED ON INNER RING, POLYAMIDE 6.6 |
| . | TPA | WINDOW TYPE CAGE OF MACHINED PHENOLIC RESIN, LOCATED ON OUTER RING |
| . | TT | THREE BEARINGS MATCHED FOR ASSEMBLY IN TANDEM-ARRANGEMENT <<< |
| . | TU | THREE BEARINGS MATCHED FOR UNIVERSAL ASSEMBLY |
| . | TV | NYLON CAGE, POLYAMIDE 6.6, GLASS FIBRE FILLED, LOCATED ON ROLLING ELEMENTS |
| . | TVA | NYLON CGAE, POLYAMIDE 6.6, GLASS FIBRE FILLED, LOCATED ON OUTER RING. |
| . | TVB | NYLON CGAE, POLYAMIDE 6.6, GLASS FIBRE FILLED, LOCATED ON INNER RING. |
| . | TVH | NYLON SNAP CAGE, POLYAMIDE 6.6, GLASS FIBRE FILLED, LOCATED ON ROLLING ELEMENTS |
| . | TVP | WINDOW TYPE NYLON CAGE, POLYAMIDE 6.6, GLASS FIBRE FILLED, LOCATED ON ROLLING ELEMENTS |
| . | TVPA | WINDOW TYPE NYLON CAGE, POLYAMIDE 6.6, GLASS FIBRE FILLED, LOCATED ON OUTER RING |
| . | TVPB | WINDOW TYPE NYLON CAGE, POLYAMIDE 6.6, GLASS FIBRE FILLED, LOCATED ON INNER RING |
| . | U | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING |
| . | U... | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH SPECIAL PRELOAD (DA N) |
| . | UA | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH AXIAL CLEARANCE. |
| . | UB | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH SMALL AXIAL CLEARANCE. |
| . | UD | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH DOUBLE OF LIGHT PRELOAD |
| . | UH | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH HIGH PRELOAD. |
| . | UL | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH LIGHT PRELOAD. |
| . | UM | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH MEDIUM PRELOAD |
| . | UO | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITHOUT AXIAL CLEARANCE AND PRELOAD (BACKLASH FREE). |
| . | UX | UNIVERSAL FACED ANGULAR CONTACT BALL BEARING WITH EXTRA LIGHT PRELOAD. |
| . | V.... | SPECIAL IBC SPECIFICATION |
| . | V001 | BEARING ACCORDING TO DIN 43 283 FOR ELECTRICAL MACHINES IN ELECTRICAL RAIL VEHICLES. |
| . | V080 | SELF ALIGNING ROLLER BEARINGS WITH NARROW TOLERANCES IN BORE AND OUTSIDE DIAMETER AND NARROWED INTERNAL CLEARANCE (VIBRATING MACHINES) |
| . | V080A | V080 + A21 |
| . | V105 | BEARING STABALISED UP TO 300 DEGGREES C WITH EXTREMELY LARGE CLEARANCE, BONDERIZED, RIVETED STEEL CAGE. |
| . | V205 | AXIAL RUNOUT LESS THAN 5 MICRO METERS. |
| . | VS | SEALING ONE SIDE, RADIALLY TOUCHING MATERIAL VITON®. |
| . | W33 | ANNUAL GROOVE WITH 3 LUBRICATION HOLES IN OUTER RING. |
| . | X | EXTRA LIGHT PRELOAD. |
| . | X | BEARING WHOSE EXTERIOR DIMENSIONS ARE MODIFIED ACCORDING TO INTERNATIONAL STANDARDS. THE SUFFIX IS NORMALLY ONLY USED DURING A CERTAIN PERIOD. |
| . | X | CAM ROLLER WITH CYLINDRICAL OD. |
| . | X02B | OD GRADED INOT 2 GROUPS, LOWER PART. |
| . | X03 | OD GRADED INTO 3 TOLERANCE BANDS. |
| . | X1 | OD AND BORE REDUCED WITHIN TOLERANCE. OD AND BORE TP TOLERANCE BAND (FORMALLY V510) |
| . | X20 | BORE GRADED INTO TWO TOLERANCE BANDS. |
| . | X20T | BORE GRADED INTO 2 GROUPS, UPPER PART. |
| . | X22 | OD AND BORE GRADED INTO 3 TOLERANCE BANDS. THE GROUPS ARE SUPPLIED ACCORDING TO PRODUCTION OUTPUT. |
| . | X3 | OD AND BORE REDUCED WITIN TOLERANCE. OD TOP TOLERANCE BAND AND BORE BOTTOM TOLERANCE BAND. |
| . | X5 | OD AND BORE REDUCED WITHIN TOLERANCE. OD AND BORE MIDDLE TOLERANCE BAND. |
| . | X6 | OD AND BORE REDUCED WITIN TOLERANCE. OD BOTTOM TOLERANCE BAND AND BORE TOP TOLERANCE BAND (FORMALLY V516) |
| . | X8 | OD AND BORE REDUCED WITHIN TOLERANCE. OD AND BORE BOTTOM TOLERANCE BAND. |
| . | Y | BRASS SHEET CAGE (RIBBON CAGE) |
| . | Z | SHIELD FITTED AT ONE SIDE OF THE BEARING. |
| . | ZS | SHIELD FITTED WITH SPRING RING AT ONE SIDE. |
| AC- | . | ATCOATED THIN DENSE CHROME |
| CB | . | HYBRID BEARING WITH CERAMIC BALLS (SI3N4) |
| CBH | . | HYBRID BEARING WITH SMALL CERAMIC BALLS (SI3N4), HIGH SPEED VERSION WITH ONE SHOULDER AT INNER AND OUTER RING. |
| CBHD | . | HYBRID BEARING WITH SMALL CERAMIC BALLS (SI3N4), HIGH SPEED VERSION WITH ONE SHOULDER AT INNER AND OUTER RING. |
| F | . | FLANGE ON OUTER RING. |
| H | . | HIGH SPEED VERSION WITH ONE SHOULDER AT INNER AND OUTER RING, SMALLER BALLS. |
| HD | . | HIGH SPEED VERSION WITH ONE SHOULDER AT INNER AND OUTER RING, SMALLER BALLS. |
| K | . | BALL-, ROLLER-, OR NEEDLE CAGE ASSEMBLY |
| L | . | SEPERATE RING, SEPERABLE BEARING. |
| R | . | INNER OUR OUTER RING WITH ROLLER CAGE ASSEMBLY |
| RB | . | BALLS |
| RC | . | CYLIBDRICAL ROLLER |
| RN | . | NEEDLE ROLLER |
| S- | . | STAINLESS STEEL |
| S-AC- | . | STAINLESS STEEL, ATCOATED. |
| T | . | CASE HARDENED STEEL, CEMENTATION STEEL. |
