The SKF bearing suffix identifies designs or variants that differ in some way from the original or current basic design. Suffixes are divided into groups. When more than one special function needs to be identified, the suffixes are given in the order shown in the following table.
SKF Bearing Designation System
- Group 1: Suffix – Internal design
- Group 2: Suffix – External design (seals, snap ring groove, etc.)
- Group 3: Suffix – Cage design
- Group 4.1: Suffix – Materials, heat treatment
- Group 4.2: Suffix – Tolerance, backlash, preload, silent operation
- Group 4.3: Suffix – Bearing sets, paired bearings
- Group 4.4: Suffix – Stabilization
- Group 4.5: Suffix – Lubrication
- Group 4.6: Suffix – Other variants
SKF suffix for deep groove ball bearings
| Suffixes – Internal Design | |
| A, AA, C, D | Different or modified internal design |
| AND | Set of reinforced balls |
| Suffixes – External design (seals, snap ring groove, etc.) | |
| No | Snap ring groove in outer ring |
| NO | Snap ring groove in outer ring, with snap ring |
| N1 | A locating groove (notch) in a side face of the outer ring |
| R |
Flanged outer ring |
| -RS1, -2RS1 | Contact seal, NBR, on one or both sides |
| -RS2, -2RS2 | Contact seal, FKM, on one or both sides |
| -RSH, -2RSH | Contact seal, NBR, on one or both sides |
| -RSH2, -2RSH2 | Contact seal, FKM, on one or both sides |
| -RSL, -2RSL | Low friction seal, NBR, on one or both sides |
| -RST, -2RST |
Low friction seal, NBR, on one or both sides |
| -RZ, -2RZ | Non-contact sealing, NBR, on one or both sides |
| -Z, -2Z | Shield on one or both sides |
| -ZNBR | Screen on one side, snap ring groove on the outer ring, with snap ring on the same side of the screen |
| -ZNR | Shield on one side, snap ring groove on outer ring, with snap ring on opposite side of shield |
| -2ZNR | Screen on both sides, snap ring groove on outer ring, with snap ring |
| -2ZS |
Shield on both sides, held in place by a retaining ring |
| X |
Limit dimensions not compatible with ISO dimension series |
| Suffixes – Cage Design | |
| – |
|
| M | Machined brass cage, centered on the sphere; Different designs or material qualities are identified by a number after the M, for example M2 |
| BUT (S) | Machined brass cage, centered on the outer ring. The “S” indicates a lubrication groove in the surface of the guide. |
| MB (S) | Machined brass cage, centered on the inner ring. The “S” indicates a lubrication groove in the surface of the guide. |
| TN | PA66 cage, ball-centered |
| TN9 | Glass fiber reinforced PA66 cage, centered on sphere |
| TN9/VG1561 | Glass fiber reinforced PA46 cage, centered on sphere |
| TNH | PEEK cage reinforced with fiberglass, centered on the sphere |
| Suffixes – Materials, heat treatment | |
| HA1 | Hardened inner and outer rings |
| Suffixes: accuracy, distance, preload, silent operation | |
| P5 | Dimensional and functional tolerances according to class P5 |
| P6 | Dimensional and functional tolerances according to class P6 |
| P52 | P5 + C2 |
| P62 | P6 + C2 |
| P63 | P6 + C3 |
| CN | Normal radial internal clearance; used only in conjunction with an additional letter identifying a reduced or altered range of play
The above letters are also used in conjunction with the game classes C2, C3, C4 and C5, for example C2H |
| C1 | Radial internal clearance less than C2 |
| C2 | Lower than normal radial internal clearance |
| C3 | Radial internal clearance greater than normal |
| C4 | Radial internal clearance greater than C3 |
| C5 | Radial internal clearance greater than C4 |
| about | Set of coupled bearings with reduced internal axial clearance |
| GA | Paired Bearing Set with Light Preload |
| Suffixes – Bearing sets, paired bearings | |
| BD | Two matching pads for back-to-back mounting |
| DF | Two paired bearings for face-to-face mounting |
| DT | Two matching bearings for tandem mounting |
| Suffixes – Stabilization | |
| S0 | Thermally stabilized bearing rings for operating temperatures ≤ 150°C (300°F) |
| S1 | Thermally stabilized bearing rings for operating temperatures ≤ 200°C (390°F) |
| Suffixes – Lubrication | |
|
GE2
GFJ GJN HT LHT23 LT LT10 MT33 MT47 VT378 Weight |
Fat suffixes |
| Suffixes – Other variations | |
| VP311 | SKF Food Line bearing: blue NBR contact seal and lubricant (GFJ) approved by FDA and CE, registered by NSF as category H1 |
| VQ658 | Silent properties |
SKF suffix for angular contact ball bearings
SKF Single Row Angular Contact Ball Bearings
| Suffixes – Internal Design |
|
| A | 30° contact angle |
| AB |
20° contact angle (bearing in inches) |
| B.C | 25° contact angle |
| B | 40° contact angle |
| AND | Optimized internal design |
| Suffixes – External design (seals, snap ring groove, execution, etc.) | |
| N1 |
A locating groove (notch) in a side face of the outer ring |
| about | Universal fit bearing. Two bearings arranged against each other or opposite each other have a smaller than normal axial internal clearance (CB). |
| CB | Universal fit bearing. Two bearings arranged back to back or face to face have normal axial internal clearance. |
| CC | Universal fit bearing. Two bearings arranged back to back or face to face have greater than normal axial internal clearance (CB). |
| Sun | Universal fit bearing. Two bearings arranged against each other or opposite each other have axial internal clearance. |
| GA | Universal fit bearing. Two bearings arranged against each other or opposite each other have a slight preload. |
| GB | Universal fit bearing. Two bearings arranged back to back or face to face have moderate preload. |
| CG | Universal fit bearing. Two bearings arranged against each other or opposite each other have a high preload. |
| -2RZ |
Non-contact sealing, NBR, on both sides |
| Suffixes – Cage Design | |
| F | Machined steel cage, centered on the ball |
| J. | Stamped steel cage, centered on the ball |
| M | Machined brass cage, centered on the sphere; Different projects are identified by a number after the M, for example, M2 |
| MB |
Machined brass cage, centered on the inner ring |
| P | Glass fiber reinforced PA66 cage, centered on sphere |
| PH | PEEK cage reinforced with fiberglass, centered on the sphere |
| s | Stamped brass cage, centered on the ball |
| Suffixes – Materials, heat treatment (n/A) |
| Suffixes: accuracy, distance, preload, silent operation | |
| P5 | Dimensional and geometric tolerances according to class P5 |
| P6 | Dimensional and geometric tolerances according to class P6 |
| Suffixes – Bearing sets, paired bearings | |
| BD | Two matching pads for back-to-back mounting |
| DF | Two paired bearings for face-to-face mounting |
| DT | Two matching pads for tandem mounting |
| Suffixes – Stabilization (n/A) |
| Suffixes – Lubrication (n/A) |
| Suffixes – Other variations (n/A) |
SKF double row angular contact ball bearings
| Suffixes – Internal Design | |
| A |
No filler slots |
| D |
Two-piece inner ring |
| Suffixes – External design (seals, snap ring groove, execution, etc.) | |
| No | Snap ring groove in outer ring |
| NO | Retaining ring groove in outer ring, with appropriate retaining ring |
| CB | Controlled axial internal play |
| -2RS1 | Contact seal, NBR, on both sides |
| 2Z | Shield on both sides |
| Suffixes – Cage Design | |
| – | Stamped steel cage, centered on the ball |
| J1 |
Stamped steel cage, centered ball (two-piece inner ring bearing) |
| M | Machined brass cage, centered on ball |
| BUT | Machined brass cage, centered on the outer ring. |
| TN9 | Glass fiber reinforced PA66 cage, centered on sphere |
| Suffixes – Materials, heat treatment (n/A) |
| Suffixes: accuracy, distance, preload, silent operation | |
| P5 | Dimensional and geometric tolerances according to class P5 |
| P6 | Dimensional and geometric tolerances according to class P6 |
| P62 | P6 + C2 |
| P63 | P6 + C3 |
| P64 | P6 + C4 |
| C2 | Axial internal clearance smaller than normal |
| C3 | Greater than normal axial internal play |
| C4 | Axial internal clearance greater than C3 |
| Suffixes – Bearing sets, paired bearings (e) |
| Suffixes – Stabilization (n/A) |
| Suffixes – Lubrication | |
|
GE2 GWF MT33 VT113 Weight |
Fat suffixes |
| Suffixes – Other variations (n/A) |
SKF four point contact ball bearings
| Suffixes – Interior Design (n/A) |
| Suffixes – External design (seals, snap ring groove, etc.) | |
| N2 | Two locating grooves (notches) on one side face of the outer ring, 180° apart |
| Suffixes – Cage Design | |
| he does | Machined steel cage, centered on the outer ring |
| BUT | Machined brass cage, centered on the outer ring. |
| FAS | PEEK cage reinforced with fiberglass, with lubrication grooves on the guide surface, centered on the outer ring |
| Suffixes – Materials, heat treatment (n/A) |
| Suffixes: accuracy, distance, preload, silent operation | |
| P6 | Dimensional and geometric tolerances according to class P6 |
| P62 | P6 + C2 |
| P63 | P6 + C3 |
| P64 | P6 + C4 |
| P6CNL |
P6 + CNL |
| CNL |
Axial internal clearance in the lower half of the normal range |
| C2 | Axial internal clearance smaller than normal |
| C2H | Axial internal clearance in the upper half of range C2 |
| C2L | Axial internal clearance in the lower half of range C2 |
| C3 | Greater than normal axial internal play |
| C4 | Axial internal clearance greater than C3 |
| 344524 |
C2H + CNL |
| Suffixes – Bearing sets, paired bearings (e) |
| Suffixes – Stabilization | |
| S1 |
Thermally stabilized bearing rings for operating temperatures ≤ 200°C (390°F) |
| Suffixes – Lubrication (n/A) |
| Suffixes – Other variations | |
| 309829 | Bigger balls |
SKF self-aligning ball bearings
| Suffixes – Internal Design | |
| AND | Optimized internal design for greater load capacity |
| Suffixes – External design (seals, snap ring groove, etc.) | |
| -2RS1 | Contact seal, NBR, on both sides |
| K | Conical bore, taper 1:12 |
| Suffixes – Cage Design | |
| M | Machined brass cage, centered on ball |
| TN9 | Glass fiber reinforced PA66 cage, centered on sphere |
| Suffixes – Materials, heat treatment (n/A) |
| Suffixes: accuracy, distance, preload, silent operation | |
| C2 | Lower than normal radial internal clearance |
| C3 |
Radial internal clearance greater than normal |
| Suffixes – Bearing sets, paired bearings (e) |
| Suffixes – Stabilization (n/A) |
| Suffixes – Lubrication | |
| W64 | Solid oil |
| Suffixes – Other variations (n/A) |
SKF suffix for thrust ball bearings
| Suffixes – Cage Design | |
| F | Machined steel cage, centered on the ball |
| M | Machined brass cage, centered on ball |
| Suffixes: accuracy, distance, preload, silent operation | |
| P5 | Dimensional and geometric tolerances according to class P5 |
| P6 |
Dimensional and geometric tolerances according to class P6 |
SKF suffix for cylindrical roller bearings
SKF single row cylindrical roller bearings
| Suffixes – Internal Design | |
| A | Different or modified internal design |
| THERE IS | Optimized internal design incorporating more and/or larger rollers and with modified roller end contact/flange |
| Suffixes – External design (seals, snap ring groove, etc.) | |
| K | Conical bore, taper 1:12 |
| No | Snap ring groove in outer ring |
| NO | Snap ring groove in outer ring, with associated snap ring |
| N1 | A locating groove (notch) in a side face of the outer ring |
| N2 | Two locating grooves (notches) on one side face of the outer ring, 180° apart |
| Suffixes – Cage Design | |
| France | Pin type steel cage, perforated rollers |
| J. | Pressed steel cage, centered on the rollers |
| I |
Cage machined from light alloy, centered on the rollers |
| THERE |
Machined alloy cage, centered on outer ring |
| LB |
Cage machined from light alloy, centered on the inner ring |
| LL |
Machined cage from light alloy, ring centric, inner or outer ring centric (depending on bearing design) |
| M | Machined brass cage, centered on the rollers |
| BUT (S) | Machined brass cage, centered on the outer ring. OS indicates a lubrication groove in the guide surface. |
| MB | Machined brass cage, centered on the inner ring |
| AM | Machined brass cage, centered on inner or outer ring, window type, depending on bearing design |
| Congressperson | Machined brass cage, centered on the inner or outer ring, window type, depending on bearing size |
| SIR | Window-shaped, machined brass cage centered on rollers |
| P | PA66 cage reinforced with fiberglass, centered on the rollers |
| FATHER | Glass fiber reinforced PA66 cage, centered on the outer ring |
| PH | PEEK cage reinforced with fiberglass, centered on the rollers |
| PHA | Glass fiber reinforced PEEK cage, centered on the outer ring |
| Suffixes – Materials, heat treatment | |
| HA1 | Hardened inner and outer rings |
| HA2 | Hardened outer ring |
| HA3 | Cemented inner ring |
| HB1 | Bainite hardened inner and outer rings |
| HB3 | Bainite hardened inner ring |
| HN1 | Inner and outer rings with special surface heat treatment |
| Suffixes: accuracy, distance, preload, silent operation | |
| CN | Normal radial internal clearance; used only in conjunction with an additional letter identifying a reduced or altered range of play
The above letters are also used in conjunction with the game classes C2, C3, C4 and C5, for example C2H. |
| C2 | Lower than normal radial internal clearance |
| C3 | Radial internal clearance greater than normal |
| C4 | Radial internal clearance greater than C3 |
| C5 | Radial internal clearance greater than C4 |
| Suffixes – Bearing sets, paired bearings | |
| DR | Set of two paired bearings |
| TR | Set of three paired bearings |
| QR | Set of four paired bearings |
| Suffixes – Stabilization | |
| S1 | Thermally stabilized bearing rings for operating temperatures ≤ 200°C (390°F) |
| S2 | Thermally stabilized bearing rings for operating temperatures ≤ 250°C (480°F) |
| Suffixes – Lubrication | |
| W33 | Annular groove and three lubrication holes in the outer ring |
| Suffixes – Other variations | |
| PEX | SKF Explorer bearing, only used when conventional SKF Explorer bearings of the same size are available |
| VA301 | Bearing for railway vehicle traction motors |
| VA305 | VA301 + special inspection routine |
| VA350 | Bearing for railway axles |
| VA380 | Bearing for railway axles according to EN 12080, class 1 |
| VA3091 | VA301+ outer surfaces of the outer ring are coated with aluminum oxide |
| VC025 | Bearing with special anti-wear slide rails for applications in highly contaminated environments |
| VE901 | Modified internal design |
| VQ015 | Inner ring with crowned raceway for greater allowable misalignment |
SKF double row cylindrical roller bearings
| Suffixes – Internal Design | |
| TO , B , C | Different or modified internal design |
| Suffixes – External design (seals, snap ring groove , etc.) | |
| Sun | Helical groove in inner ring hole |
| K | Conical bore, taper 1:12 |
| K30 | Conical bore, taper 1:30 |
| Suffixes – Cage Design | |
| F |
Machined steel cage, centered on the rollers |
| M | Machined brass cage, centered on the rollers |
| Suffixes – Materials, heat treatment | |
| HA1 | Hardened inner and outer rings |
| HA4 | Hardened inner and outer rings and rollers |
| HA5 | Hardened rollers |
| HB1 | Bainite hardened inner and outer rings |
| Suffixes: accuracy, distance, preload, silent operation | |
| CN | Normal radial internal clearance; used only in conjunction with an additional letter identifying a reduced or displaced gap
The above letters are also used in conjunction with the game classes C2, C3, C4 and C5, for example C2H |
| C2 | Lower than normal radial internal clearance |
| C3 | Radial internal clearance greater than normal |
| C4 | Radial internal clearance greater than C3 |
| C5 | Radial internal clearance greater than C4 |
| Suffixes – Bearing sets, paired bearings | |
| DR | Set of two paired bearings |
| TR | Set of three paired bearings |
| QR | Set of four paired bearings |
| Suffixes – Stabilization | |
| S1 | Thermally stabilized bearing rings for operating temperatures ≤ 200°C (390°F) |
| S2 | Thermally stabilized bearing rings for operating temperatures ≤ 250°C (480°F) |
| Suffixes – Lubrication | |
| W20 | Lubrication holes in the outer ring |
| W33 (X) | Annular groove and lubrication holes in the outer ring |
SKF single row cylindrical roller bearings with complete set
| Suffixes – Internal Design | |
| CV | Modified internal design, full set of rollers |
| Suffixes – Cage Design | |
| V | Full range of rollers (without cage) |
| VH | Complete range of rollers (without cage), self-locking |
| Suffixes – Materials, heat treatment | |
| HA1 | Hardened inner and outer rings |
| HB1 | Bainite hardened inner and outer rings |
| L4B | Black oxidized bearing rings and rollers |
| Suffixes: accuracy, distance, preload, silent operation | |
| CN | Normal radial internal clearance; used only in conjunction with an additional letter identifying a reduced or displaced gap
The above letters are also used in conjunction with the game classes C2, C3, C4 and C5, for example C2H. |
| C2 | Lower than normal radial internal clearance |
| C3 | Radial internal clearance greater than normal |
| C4 | Radial internal clearance greater than C3 |
| C5 | Radial internal clearance greater than C4 |
| Suffixes – Bearing sets, paired bearings | |
| DR | Set of two paired bearings |
| TR | Set of three paired bearings |
| QR | Set of four paired bearings |
SKF double row cylindrical roller bearings with complete set
| Suffixes – Internal Design | |
| CV | Modified internal design, full set of rollers |
| Suffixes – External design (seals, snap ring groove , etc.) | |
| BAD | Modified internal design and seal (for NNF 50 series) |
| B | Improved sealing and grease |
| IN | Modified internal design and seal (for 3194 series..) |
| -2LS | Contact seal, PUR, on both sides |
| Suffixes – Cage Design | |
| V | Full range of rollers (without cage) |
| Suffixes – Materials, heat treatment | |
| HB1 | Bainite hardened inner and outer rings |
| L4B | Black oxidized bearing rings and rollers |
| Suffixes: accuracy, distance, preload, silent operation | |
| CN | Normal radial internal clearance; used only in conjunction with an additional letter identifying a reduced or altered range of play
The above letters are also used in conjunction with the game classes C2, C3, C4 and C5, for example C2H. |
| C2 | Lower than normal radial internal clearance |
| C3 | Radial internal clearance greater than normal |
| C4 | Radial internal clearance greater than C3 |
| C5 | Radial internal clearance greater than C4 |
| Suffixes – Bearing sets, paired bearings | |
| DR | Set of two paired bearings |
| TR | Set of three paired bearings |
| QR | Set of four paired bearings |
SKF spherical roller bearing suffix
| Suffixes – Internal Design | |
| B.C. | Wind turbine main shaft bearing with cast iron roller cage |
| CA, CAC | Seal flanges on inner ring, guide ring centered on inner ring, machined brass cage |
| CC(J), CJ | Inner ring without flange, guide ring centered on inner ring, two pressed steel cages |
| CCJA, EJA | Inner ring without flange, guide ring centered in outer ring race, two pressed steel cages |
| AND | Optimized internal design for greater series load capacity 213, 222 and 223: inner ring without flanges and two pressed steel cages. Annular groove and three lubrication holes in the outer ring. d ≤ 65 mm: guide ring centered on the inner ring d>65 mm: guide ring centered in the cage |
| Suffixes – External design (seals, snap ring groove, etc.) | |
| -CS, -2CS | Contact seal, NBR, on one or both sides |
| -CS2, -2CS2 | Contact seal, FKM, on one or both sides |
| -CS5, -2CS5 | Contact seal, HNBR, on one or both sides |
| -RS, -2RS | Contact seal, NBR, on one or both sides |
| -RS5, -2RS5 | Contact seal, HNBR, on one or both sides |
| K | Conical bore, taper 1:12 |
| K30 | Conical bore, taper 1:30 |
| Suffixes – Cage Design | |
| F | Machined steel cage, centered on the inner ring |
| he does | Machined steel cage, centered on the outer ring |
| J. | Pressed steel cage, centered on the inner ring |
| ALREADY | Pressed steel cage, centered outer ring |
| BUT | Machined brass cage, centered on the outer ring |
| Suffixes – Materials, heat treatment | |
| 235220 |
Carbureted inner ring with helical groove in the bore |
| HA3 |
Cemented inner ring |
| Suffixes -Accuracy, clearance, preload, silent operation | |
| C08 | Execution accuracy in tolerance class P5 |
| C083 | C08 + C3 |
| C084 | C08 + C4 |
| C2 | Lower than normal radial internal clearance |
| C3 | Radial internal clearance greater than normal |
| C4 | Radial internal clearance greater than C3 |
| C5 | Radial internal clearance greater than C4 |
| P5 |
Dimensional and functional accuracy in accordance with tolerance class P5 |
| P6 |
Dimensional and functional accuracy in accordance with tolerance class P6 |
| P62 |
P6 + C2 |
| Suffixes – Lubrication | |
| GEM9 | Filled 70 to 100% with SKF LGHB 2 grease |
| GLE | Filled 25 to 45% with SKF LGWM 2 grease |
| VT143 | Filled 25 to 45% with SKF LGEP 2 grease |
| VT143B | Filled 45 to 60% with SKF LGEP 2 grease |
| VT143C | Filled 70 to 100% with SKF LGEP 2 grease |
| W64 | Solid oil |
| W | Without annular groove and lubrication holes in the outer ring |
| W20 | Three lubrication holes in the outer ring |
| W26 | Six lubrication holes in the inner ring |
| W33 | Annular groove and three lubrication holes in the outer ring |
| W33X | Annular groove and six lubrication holes in the outer ring |
| W77 | Clogged W33 lubrication holes |
| W513 | W26+W33 |
| Suffixes – Other variations | |
| R505 | Bearing for railway axles |
| VA405 | Bearing for vibratory applications, pressed steel cages with hardened surface |
| VA406 | Same as VA405, but with PTFE coated cylindrical inner bore |
| VA991 | Bearing for high speed applications |
| VE552 (E) | Outer ring with three equally spaced threaded holes on one side face to accommodate lifting equipment. OE indicates that appropriate lugs are provided with the bearing. |
| VE553 (E) | Same as VE552 (E), but with threaded holes on both side faces |
| VG114 | Pressed steel cages with hardened surface |
| VQ424 | Operational accuracy better than C08 |
SKF CARB toroidal bearing suffix codes
| Suffixes – External design (seals, snap ring groove, etc.) | |
| -CS5, -2CS5 | Contact seal, HNBR, on one or both sides |
| -NS, -2NS | Contact seal, NBR, on one or both sides |
| K | Conical bore, taper 1:12 |
| K30 | Conical bore, taper 1:30 |
| Suffixes – Cage Design | |
| – | Pressed steel cage, centered on the rollers |
| M | Machined brass cage, centered on the rollers |
| MB, MB1 | Machined brass cage, centered on the inner ring |
| TN9 | PA46 cage reinforced with fiberglass, centered on the rollers |
| V | Full range of rollers (without cage) |
| Suffixes – Materials, heat treatment | |
| HA3 | Cemented inner ring |
| Suffixes: accuracy, distance, preload, silent operation | |
| C08 | Geometric tolerances according to class P5 |
| C2 | Lower than normal radial internal clearance |
| C3 | Radial internal clearance greater than normal |
| C4 | Radial internal clearance greater than C3 |
| C5 | Radial internal clearance greater than C4 |
| Suffixes – Stabilization | |
| S3 |
Thermally stabilized bearing rings for operating temperatures ≤ 300°C (570°F) |
| Suffixes – Lubrication | |
| GEM9 | Filled 70 to 100% with SKF LGHB 2 grease |
| Suffixes – Other variations | |
| VE240 | Bearing with shorter rollers |
| VG114 | Pressed steel cage with hardened surface |
| VM118 |
Full complement bearing without retaining ring |
| VT143 |
Filled 25 to 45% with SKF LGEP 2 grease |
SKF cylindrical roller bearing suffix codes
| Suffixes – Cage Design | |
| M | Machined brass cage |
| TN | Glass fiber reinforced PA66 cage |
| Suffixes – Materials, heat treatment | |
| HA1 | Hardened shaft and washers |
| HB1 | Bainite hardened shaft and washers |
| Suffixes: accuracy, distance, preload, silent operation | |
| P5 | Dimensional and geometric tolerances according to class P5 |
SKF spherical roller bearings suffix codes
| Suffixes – Internal Design | |
| AND | Optimized internal design |
| Suffixes – External design (seals, snap ring groove, etc.) | |
| N1 | A locating groove in the housing washer |
| N2 | Two positioning slots in the housing washer, 180° apart |
| Suffixes – Cage Design | |
| – |
|
| F | Machined steel cage, centered shaft washer |
| F3 | Ductile cage machined from cast iron, shaft with centralized washer |
| M | Machined brass cage, centered shaft washer |
| Suffixes – Other variations | |
| VE447 (E) | Mast washer with three equally spaced threaded holes to accommodate lifting equipment. OE indicates that appropriate lugs are provided with the bearing. |
| VE710 (E) | Housing washer with three equally spaced threaded holes to accommodate lifting equipment. OE indicates that appropriate lugs are provided with the bearing. |
| VU029 | Modified shaft washer for low backlash applications |
