Schaeffler bearing suffix on this page.
- FAG deep groove ball bearings suffix
- FAG, INA angular contact ball bearings suffix
- FAG four point contact bearings
- FAG self-aligning ball bearings suffix
- FAG INA cylindrical roller bearings suffixes
- FAG tapered roller bearings suffixes
- FAG barrel roller bearings suffixes
- FAG spherical roller bearings suffixes
- Schaeffler toroidal roller bearings suffixes
- INA drawn cup needle roller bearings suffixes
- INA needle roller bearings suffixes
- INA combined needle roller bearings suffixes
- INA inner rings suffixes
- INA drawn cup roller clutches suffixes
- INA sealing rings suffixes
- FAG INA axial deep groove ball bearings suffixes
- INA axial cylindrical roller bearings suffixes
- INA axial needle roller bearings suffixes
- FAG axial spherical roller bearings suffixes
- INA crossed roller bearings suffixes
- FAG INA supper precision bearings suffixes
- INA track rollers suffixes
- INA radial insert ball bearings suffixes
FAG and INA bearing designation indicates the type, dimensions, tolerances and internal clearance, and other important features. The designation are standardised in DIN 623-1, which include the Basic designation, Prefix, and Suffix. Please refer to FAG bearing designation system.
Prefix normally identifies individual Schaeffler bearing parts of complete bearings (in certain cases, this may also be part of the basic designation)
Suffix defines special designs and features. The prefix and suffix describe other features of the bearing but are not standardised in all cases and may vary in use depending on the manufacturer.
Schaeffler bearing suffix
Composition of designations
FAG deep groove ball bearings suffix
| Suffix | Description of suffix |
|---|---|
| C | Deep groove ball bearing, Generation C |
| M | Solid brass cage, ball-guided |
| MA | Solid brass cage, guided on outer ring rib |
| MB | Solid brass cage, guided on inner ring rib |
| C2 | Radial internal clearance C2 (smaller than normal) |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| CM | Radial internal clearance more closely toleranced than normal |
| 2BRS | Non-contact seal on both sides (labyrinth seal) |
| 2HRS | Contact seal on both sides (lip seal) |
| 2RSR | Contact seal on both sides (lip seal) |
| 2RZ | Non-contact seal on both sides (rubberised gap seal) |
| 2Z | Non-contact sealing shield on both sides (sheet metal gap seal) |
| BRS | Non-contact seal on one side (labyrinth seal) |
| ELS | Contact seal on one side (lip seal) |
| 2ELS | Contact seal on both sides (lip seal) |
| RSR | Contact seal on one side (lip seal) |
| RZ | Non-contact seal on one side (rubberised gap seal) |
| TVH | Solid cage made from glass fibre reinforced polyamide PA66 |
| Y | Sheet brass cage |
| Z | Non-contact sealing shield on one side (sheet metal gap seal) |
| S0 | Dimensionally stabilised bearing for operating temperatures up to +150 °C |
| S1 | Dimensionally stabilised bearing for operating temperatures up to +200 °C |
| S2 | Dimensionally stabilised bearing for operating temperatures up to +250 °C |
| Suffix | Description of suffix |
|---|---|
| B | Modified internal construction |
| TVH | Solid cage made from glass fibre reinforced polyamide PA66 |
FAG, INA angular contact ball bearings suffix
| Suffix | Description of suffix |
|---|---|
| B | Modified internal construction, nominal contact angle a = 40° |
| JP | Sheet steel cage |
| MP | Solid brass cage |
| TVH/TVP | Solid cage made from glass fibre reinforced polyamide PA66 |
| P5 | Bearing in tolerance class 5 (Please refer to bearing tolerance chart) |
| 2RS | Contact seal on both sides (lip seal) |
| UA | Universal design for fitting in pairs, bearing pair has a small axial internal clearance in O and X arrangement |
| UB | Universal design for fitting in pairs, bearing pair has a smaller axial internal clearance in O and X arrangement than in UA |
| UH | Universal design for fitting in pairs, bearing pair has a high preload in O and X arrangement |
| UL | Universal design for fitting in pairs, bearing pair has a light preload in O and X arrangement |
| UM | Universal design for fitting in pairs, bearing pair has a moderate preload in O and X arrangement |
| UO | Universal design for fitting in pairs, bearing pair is clearance-free in O and X arrangement |
| XL | X-life bearing, dependent on bore code and bearing type |
| Suffix | Description of suffix |
|---|---|
| B | Modified internal construction, nominal contact angle a = 25°, without filling slot |
| BD | Modified internal construction, nominal contact angle a = 30°, without filling slot |
| C2 | Axial internal clearance C2 (smaller than normal) |
| C3 | Axial internal clearance C3 (larger than normal) |
| C4 | Axial internal clearance C4 (larger than C3) |
| DA | Inner ring split, nominal contact angle a = 45° |
| M | Solid brass cage, ball-guided |
| MA | Solid brass cage, guided on outer ring |
| TVH | Solid cage made from glass fibre reinforced polyamide PA66, ball-guided |
| 2HRS | Contact seal on both sides, axial contact (lip seal) |
| 2RS | Contact seal on both sides, axial contact (lip seal) |
| 2RSR | Contact seal on both sides, radial contact (lip seal) |
| 2RZ | Non-contact seal on both sides (rubberised gap seal) |
| 2Z | Non-contact sealing shield on both sides (sheet metal gap seal) |
| HRS | Contact seal on one side, axial contact (lip seal) |
| RS | Contact seal on one side, axial contact (lip seal) |
| RSR | Contact seal on one side, radial contact (lip seal) |
| RZ | Non-contact seal on one side (rubberised gap seal) |
| Z | Non-contact sealing shield on one side (sheet metal gap seal) |
| XL | X-life bearing, dependent on bore code and bearing type |
FAG four point contact bearings
| Suffix | Description of suffix |
|---|---|
| C2 | Axial internal clearance C2 (smaller than normal) |
| C3 | Axial internal clearance C3 (larger than normal) |
| C4 | Axial internal clearance C4 (larger than C3) |
| MPA | Solid brass cage, guided on outer ring |
| TVP | Solid cage made from glass fibre reinforced polyamide PA66 |
| N2 | Two retaining slots in outer ring |
| XL | X-life bearing |
FAG self-aligning ball bearings suffix
| Suffix | Description of suffix |
|---|---|
| C3 | Radial internal clearance C3 (larger than normal, Please refer to bearing internal clearance chart) |
| CN | Radial internal clearance CN (normal) |
| K | Tapered bore |
| M | Solid brass cage |
| TVH | Solid cage made from glass fibre reinforced polyamide PA66 |
| 2RS | Contact seal on both sides |
FAG INA cylindrical roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| C5 | Radial internal clearance C5 (larger than C4) |
| E | Increased capacity design |
| EX | Increased capacity design, design modified in accordance with standard (parts from these bearings must not be interchanged with parts from bearings of the same size of the previous design E) |
| JP3 | Sheet steel window cage, single-piece, roller-guided |
| J30P | Black oxide coated (Durotect B) |
| MPAX | Solid brass cage, single-piece, rib-guided on outer ring |
| MPBX | Solid brass cage, single-piece, rib-guided on inner ring |
| M1 | Solid brass cage, two-piece, roller-guided |
| M1A | Solid brass cage, two-piece, rib-guided on outer ring |
| M1B | Solid brass cage, two-piece, rib-guided on inner ring |
| TB | Bearing with increased axial load carrying capacity (toroidal crowned design) |
| TVP2 | Solid window cage made from glass fibre reinforced polyamide PA66 |
| XL | X-life bearing |
| Suffix | Description of suffix |
|---|---|
| BIR | Inner ring raceway ground slightly spherical |
| BR | Black oxide coated |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| C5 | Radial internal clearance C5 (larger than C4) |
| TB | Bearing with increased axial load carrying capacity |
| XL | X-life bearing |
| Suffix | Description of suffix |
|---|---|
| BR | Black oxide coated |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| C5 | Radial internal clearance C5 (larger than C4) |
| E | Increased capacity design |
| TB | Bearing with increased axial load carrying capacity |
| XL | X-life bearing |
| Suffix | Description of suffix |
|---|---|
| BR | Black oxide coated |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| C5 | Radial internal clearance C5 (larger than C4) |
| TB | Bearing with increased axial load carrying capacity |
| D | Improved outer ring profile, with an enlarged loadbearing area and optimised edge transitions |
| GA22 | Bearing greased with lithium soap grease GA22 for expanded temperature range |
| P | Contact seal on one side |
| PP | Contact seal on both sides |
| RR | Corrosion-resistant design, with Corrotect coating |
| 2NR | Supplied with two loose-packed retaining rings WRE |
| 2WR | Supplied with two loose-packed retaining rings WR |
| XL | X-life bearing |
FAG tapered roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| A | Modified internal construction (excluding bearings to ANSI/ABMA) |
| B | Increased contact angle (for bearings to DIN) |
| DF-A..-.. | Two tapered roller bearings matched in an X arrangement, with an intermediate ring between the outer rings. Axial internal clearance between .. and .. in um |
| X | External dimensions matched to international standards (for bearings to DIN) |
| XL | X-life |
| DB-A..-.. | Two tapered roller bearings matched in an O arrangement, with an intermediate ring between the outer rings and the inner rings, axial internal clearance between .. and .. in um |
| DT | Two tapered roller bearings matched in a tandem arrangement, with an intermediate ring between the outer rings |
| P5 | Bearing in tolerance class 5 |
FAG barrel roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| C2 | Radial internal clearance C2 (smaller than normal) |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| CN | Radial internal clearance CN (normal) |
| K | Tapered bore, taper 1:12 |
| MB | Solid brass cage, guided on inner ring |
| TVP | Solid cage made from glass fibre reinforced polyamide PA66 |
FAG spherical roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| A-MA, AS-MA | Two brass cages, guidance on outer ring, inner ring with two lateral retaining ribs and one central rib |
| B-FB1 | One steel cage, guidance on inner ring, inner ring with two lateral retaining ribs and one central rib |
| BE-XL | Two sheet steel cages, surface hardened, guidance on inner ring, X-life |
| BE-XL-JPA | Two sheet steel cages, surface hardened, guidance on outer ring, X-life |
| BEA-XL-MB1 | One brass double comb cage, guidance on inner ring, inner ring with two lateral retaining ribs, X-life |
| E1-XL | Two sheet steel cages, surface hardened or coated, guidance on outer ring, X-life |
| E1-XL-TVPB | Two window cages made from glass fibre reinforced polyamide, guidance on inner ring, X-life |
| E1A-XL-M | One brass double comb cage, guided by rollers, inner ring with two lateral retaining ribs, X-life |
| MB, B-MB | Two brass cages, guidance on inner ring, inner ring with two lateral retaining ribs and one central rib |
| MA1 | One brass cage, guidance on outer ring, inner ring with two lateral retaining ribs and one central rib |
| 2RSR | Contact seal (lip seal) on both sides with sheet steel reinforcement, made from nitrile rubber (NBR); grease fill level 25% to 40%, filled with high pressure grease |
| 2VSR | Contact seal (lip seal) on both sides with sheet steel reinforcement, made from fluoro rubber (FKM); grease fill level 60% to 100%, filled with high temperature grease |
| C2 | Radial internal clearance C2 (smaller than normal) |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| H40 | Without lubrication groove and lubrication holes |
| H40CA | 6 lubrication holes in the outer ring |
| H40AB | 6 lubrication holes in the inner ring |
| H40AC | 6 lubrication holes and one lubrication groove in the inner ring |
| H78(*) | 3 uniformly distributed threaded holes in one end face of the outer ring |
| H151 | One 45° retaining slot in the outer ring |
| H151B | One 15° retaining slot in the outer ring |
| K | Tapered bore, taper 1:12 |
| K30 | Tapered bore, taper 1:30 |
| P5 | Dimensional and running accuracy in accordance with ISO tolerance class 5 |
| S | Lubrication groove and lubrication holes in outer ring |
| SY | 3 lubrication holes in the outer ring, no lubrication groove |
| T41A | For oscillating load with restricted diameter tolerances, radial internal clearance C4 |
| T41D | For oscillating load with restricted diameter tolerances, radial internal clearance C4, bore with thin chromium coating |
| W209B | Inner ring made from case hardening steel |
| XL | X-life bearing |
Schaeffler toroidal roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| C2 | Radial internal clearance C2 (smaller than normal) |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| C5 | Radial internal clearance C5 (larger than C4) |
| K | Tapered bore, taper 1:12 |
| K30 | Tapered bore, taper 1:30 |
| M | Brass window cage, guided by rollers |
| M1B | Brass window cage, guided on inner ring |
| V | Full complement |
| W209B | Inner ring made from case hardening steel |
| XL | X-life bearing |
INA needle roller and cage assemblies suffixes
| Suffix | Description of suffix |
|---|---|
| TV | Cage made from glass fibre reinforced polyamide PA66 |
| ZW | Double row design (only available in certain enveloping circle diameters) |
INA drawn cup needle roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| AS1 | With lubrication hole from HK0609 |
| GA08 | Unsealed, greased bearings for operating available by agreement temperatures from -20 °C to +140 °C |
| RS | Contact seal on one side |
| TV | Cage made from glass fibre reinforced polyamide PA66 |
| ZW | Double row design, with lubrication hole |
| 2RS | Contact seal on both sides |
INA needle roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| ASR1 | Lubrication hole and lubrication groove in the outer ring, dependent on the size |
| C3 | Radial internal clearance C3 (larger than normal) |
| D | Bearing with improved steel cage for downsizing option |
| LS1 | Lubrication hole in the inner ring, dependent on the size |
| P5 | Bearing with high dimensional, geometrical and running accuracy |
| RSR | Contact seal on one side (lip seal) |
| TV | Bearing with cage made from glass fibre reinforced polyamide PA66 |
| TW | Bearing with cage made from glass fibre reinforced polyamide PA66 and two short needle rollers per cage pocket |
| XL | X-life bearing |
| ZW | Double row design, dependent on the size |
| 2RSR | Contact seal on both sides (lip seal) |
INA combined needle roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| TV | Bearing with radial cage made from glass fibre reinforced polyamide 66 |
| Z | Bearing with end cap, axial bearing component greased with lithium complex soap grease to GA08 |
| XL | X-life bearing |
INA inner rings suffixes
| Suffix | Description of suffix |
|---|---|
| C2 | Radial internal clearance C2 (smaller than normal) |
| C3 | Radial internal clearance C3 (larger than normal) |
| C4 | Radial internal clearance C4 (larger than C3) |
| EGS | Surface ground free from spiral marks for rotary shaft seals to DIN 3760 and DIN 3761 |
| IS1 | With lubrication hole |
| VGS | Machining allowance “z” on raceway |
INA drawn cup roller clutches suffixes
| Suffix | Description of suffix |
|---|---|
| - | Steel springs |
| KF | Plastic pressure springs |
| R | Knurled outside surface |
| RR | Drawn cup roller clutch with Corrotect coating |
INA sealing rings suffixes
| Suffix | Description of suffix |
|---|---|
| FPM | Sealing rings G and GR for temperatures of -20 °C to +160 °C or circumferential velocities of up to 16 m/s |
| HNBR | Sealing rings G and GR for temperatures of -30 °C to +140 °C or circumferential velocities of up to 12 m/s |
FAG INA axial deep groove ball bearings suffixes
| Suffix | Description of suffix |
|---|---|
| MP | Solid brass cage, ball-guided |
| P5 | Bearing in tolerance class 5 |
| P6 | Bearing in tolerance class 6 |
INA axial cylindrical roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| M | Solid brass cage |
| TV | Solid cage made from glass fibre reinforced polyamide PA66 |
| P5 | High dimensional, geometrical and running accuracy |
INA axial needle roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| RR | Corrosion-resistant design, with Corrotect coating |
| TV | Plastic cage made from glass fibre reinforced polyamide PA66 |
FAG axial spherical roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| E1 | Increased capacity design |
| MB | Solid brass cage |
| N1 | One retaining slot in the housing locating washer |
| N2 | Two retaining slots offset by 180° in the housing locating washer |
| THI | 3 uniformly distributed threaded holes in one end face of the shaft locating washer |
| THIE | 3 uniformly distributed threaded holes in one end face of the shaft locating washer, incl. suitable eye bolts |
| THO | 3 uniformly distributed threaded holes in one end face of the housing locating washer |
| THOE | 3 uniformly distributed threaded holes in one end face of the housing locating washer, incl. suitable eye bolts |
| XL | X-life bearing |
INA crossed roller bearings suffixes
| Suffix | Description of suffix |
|---|---|
| RR | Corrosion-resistant design, with Corrotect coating |
| RL0 | Low clearance |
| VSP | Preloaded |
| VSP+PRL50 | Preloaded, axial and radial runout tolerance restricted by 50% |
FAG INA supper precision bearings suffixes
| Suffix | Description of suffix |
|---|---|
| PE | Bearing design with less stringent tolerances |
| T, TVP | Polyamide cage |
| 2AP | Axial angular contact ball bearings, matched pair (ZKLN, ZKLF) |
| 2RS | Contact seal on both sides (lip seal) |
| 2Z | Minimal gap seal on both sides |
| LO55 | Greased with high performance grease Arcanol MULTITOP |
| SU | Universal bearing; single bearings can be used in sets in any combination required |
| HC | Hybrid Ceramic, rings made from rolling bearing steel, balls made from ceramic |
| Suffix | Description of suffix |
|---|---|
| L | Stepped shaft locating washer extended on one side |
| TVP | Axial bearing cages made from glass fibre reinforced polyamide PA66 |
INA track rollers suffixes
| Suffix | Description of suffix |
|---|---|
| PP | Plastic axial plain washer with formed seal lip on both sides of the bearing, giving a three-stage seal |
| RR | Protected against corrosion by Corrotect special coating in the case of PWTR..-2RS and PWKR(E)..-2RS |
| SK | Hexagonal socket only on the flange-side end face, no relubrication facility |
| TV | Plastic cage |
| XL | X-life design |
| 2RS | Protected lip seal on both sides |
| 2RSR | Radial contact lip seal on both sides |
| 2ZL | Contact washer with lamellar ring on both sides |
| Suffix | Description of suffix |
|---|---|
| DRS | Lip seal on stud side, axial sealing action Sealing shield with cover on the end face |
| IS1 | Lubrication hole in inner ring |
| RR | Protected against corrosion by Corrotect special coating |
| TVH | Cage made from glass fibre reinforced polyamide |
| X | Cylindrical outside surface |
| XL | X-life design |
| 2HRS | Lip seal on both sides with optimised geometry, low friction |
| 2RS | Lip seal on both sides, with axial sealing action |
| 2RSR | Lip seal on both sides, with radial sealing action |
| 2Z | Sealing shield on both sides |
INA radial insert ball bearings suffixes
| Suffix | Description of suffix |
|---|---|
| AS2/V | Bearing outer ring with two lubrication holes in two offset planes (instead of one plane) |
| B | Bearing with spherical outside surface of outer ring |
| 2C | Flinger shield on both sides |
| FA | Manufacturing variant |
| FA101 | High and low temperature design -40 °C to +180 °C |
| FA106 | Bearing subjected to special noise testing |
| FA107 | Bearing with lubrication holes on the locating side |
| FA125 | With Corrotect coating, corrosion-resistant |
| FA164 | High temperature design from +150 °C to +250 °C |
| KRR | Lip seal on both sides (seal R) |
| KLL | Labyrinth seal on both sides (seal L) |
| KTT | Triple lip seal on both sides (seal T) |
| NPP | Lip seal on both sides (seal P) |
| 2RSR | Lip seal on both sides (vulcanised) |
| AH | Features differing from the original |
| NR | Slot and snap ring for radial insert ball bearing with cylindrical outer ring |
| OSE | Bearing without locking element (eccentric locking collar) |
| XL | Bearing design in X-life quality |