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Description
- Inner diameter (d): 40mm
- Outer diameter (D): 80mm
- Width (B): 18mm
- Static Basic Load Ratings (C_o): 26kN
- Dynamic Basic Load Ratings (c): 36.4kN
- Limiting Speed: 10000 revolutions per minute
- Fatigue Limit Load (P_u): 1.1kN
- Weight: 0.38 kg
This bearing is typically used in applications that require high precision and durability, and it's widely used in various industries like metallurgy, railway, papermaking, cement, engineering machinery, power, transmission equipment, automotive, and aerospace
How to Read an SKF Bearing Number
Every SKF bearing part number is built from a prefix (bearing type), a basic number (dimensions and bore size), and one or more suffixes (seals, clearance, cage, and other features). Multiply the last two digits of the basic number by 5 to get the bore diameter in millimeters. Special bore codes: 00 = 10mm, 01 = 12mm, 02 = 15mm, 03 = 17mm.
6205-2RS1/C3
6 Deep groove ball • 2 Light series • 05 25mm bore • 2RS1 NBR seals both sides • C3 Greater than normal clearance
NU 2216 ECP/C3
NU Cylindrical roller • 22 Dimension series • 16 80mm bore • EC Optimized design • P Polyamide cage • C3 Greater than normal clearance
Prefixes
Bearing Type Codes (First Digit)
| Code | Bearing Type |
|---|---|
| 0 | Double row angular contact ball bearing |
| 1 | Self-aligning ball bearing |
| 2 | Spherical roller bearing / Spherical roller thrust bearing |
| 3 | Tapered roller bearing |
| 4 | Double row deep groove ball bearing |
| 5 | Thrust ball bearing |
| 6 | Single row deep groove ball bearing |
| 7 | Single row angular contact ball bearing |
| 8 | Cylindrical roller thrust bearing |
Cylindrical Roller — Single Row
| Prefix | Configuration |
|---|---|
| N | Inner ring two flanges, outer ring without flanges |
| NF | Inner ring two flanges, outer ring one flange |
| NU | Outer ring two flanges, inner ring without flanges |
| NJ | Outer ring two flanges, inner ring one flange |
| NUP | Outer ring two flanges, inner ring one flange + loose flange ring |
| NJP | Outer ring two flanges, inner ring one loose flange ring |
| NUB | Outer ring two flanges, inner ring extended both sides without flanges |
Cylindrical Roller — Double Row
| Prefix | Configuration |
|---|---|
| NN | Inner ring three flanges, outer ring without flanges |
| NNU | Outer ring three flanges, inner ring without flanges |
| NNUP | Outer ring three flanges + loose flange ring on inner ring |
| NNC | Inner ring three flanges, outer ring two flanges |
Full Complement Cylindrical Roller
| Prefix | Configuration |
|---|---|
| NCF | Single row — inner ring two flanges, outer ring one flange (no cage) |
| NJG | Single row — outer ring two flanges, inner ring one flange (no cage) |
| NNCL | Double row — inner ring three flanges, outer ring without flanges |
| NNCF | Double row — inner ring three flanges, outer ring one flange |
| NNF | Double row sealed — inner ring three flanges, outer ring centre flange |
Other Rolling Bearing Types
| Prefix | Type |
|---|---|
| QJ | Four-point contact ball bearing |
| C | CARB toroidal roller bearing |
| T | Tapered roller bearing (ISO 355) |
Needle Roller Bearings
| Prefix | Type |
|---|---|
| HK | Drawn cup needle roller bearing, open ends |
| BK | Drawn cup needle roller bearing, closed end |
| HN | Drawn cup needle roller bearing, open ends, full complement |
| NA | Machined rings, with flanges, with inner ring |
| NK | Machined rings, with flanges, without inner ring |
| NKI | Machined rings, with flanges, with inner ring (variant) |
| NKIS | Machined rings, sealed, with inner ring |
| RNA | Needle roller bearing without inner ring |
Plain Bearings
| Prefix | Type |
|---|---|
| GE | Radial spherical plain bearing |
| GEG | Radial spherical plain bearing (heavy-duty) |
| GEH | Radial spherical plain bearing (heavy-duty variant) |
| GEM | Radial spherical plain bearing (maintenance-free) |
| GEZ | Radial spherical plain bearing (inch dimensions) |
Component & Special Prefixes
| Prefix | Meaning |
|---|---|
| W | Stainless steel bearing (metric) |
| D/W | Stainless steel bearing (inch) |
| L | Separate ring of a separable bearing |
| R | Ring with roller/cage assembly, or bearing without inner ring |
| GS | Housing washer (thrust roller bearings) |
| WS | Shaft washer (thrust roller bearings) |
| K | Cylindrical roller and cage thrust assembly |
| ZE | Bearing with SensorMount feature |
| ICOS | Oil-sealed bearing unit |
Suffixes
Seals & Shields
| Suffix | Meaning |
|---|---|
| -Z | Metal shield on one side |
| -2Z | Metal shields on both sides |
| -ZNR | Shield with snap ring groove and snap ring |
| -2ZNR | Dual shields with snap ring |
| -RS1 | Contact seal (NBR rubber) on one side |
| -2RS1 | Contact seal (NBR rubber) on both sides |
| -RS2 | Contact seal (FKM fluorocarbon rubber) on one side |
| -2RS2 | Contact seal (FKM fluorocarbon rubber) on both sides |
| -RSH | Contact seal (NBR) variant, one side |
| -2RSH | Contact seal (NBR) variant, both sides |
| -RSL | Low-friction seal (NBR) one side |
| -2RSL | Low-friction seal (NBR) both sides |
| -RS5 | Contact seal (HNBR hydrogenated rubber) one side |
| -2RS5 | Contact seal (HNBR hydrogenated rubber) both sides |
| -RZ | Non-contact gap seal (NBR) one side |
| -2RZ | Non-contact gap seal (NBR) both sides |
| -CS | Contact seal (NBR) one side (spherical roller) |
| -2CS | Contact seal (NBR) both sides (spherical roller) |
| -CS5 | Contact seal (HNBR) (spherical roller / CARB) |
| -LS | Contact seal (polyurethane) one side |
| -2LS | Contact seal (polyurethane) both sides |
Internal Clearance
| Suffix | Meaning |
|---|---|
| C1 | Clearance smaller than C2 (tightest) |
| C2 | Clearance less than Normal |
| CN | Normal clearance (stated only with tolerance code) |
| C3 | Clearance greater than Normal |
| C4 | Clearance greater than C3 |
| C5 | Clearance greater than C4 (loosest) |
Internal Design
| Suffix | Meaning |
|---|---|
| A | Contact angle 30° (angular contact) / modified internal design |
| AC | Contact angle 25° |
| B | Contact angle 40° (angular contact) |
| BE | 40° contact angle, enlarged balls, reinforced polyamide cage |
| C | Modified internal design |
| CC | Contact angle 12° |
| CD | Contact angle 15° |
| E | Reinforced ball set / optimized higher load capacity |
| EC | Optimized internal geometry, higher load capacity (cylindrical roller) |
| CA | Retaining flanges, guide ring on inner ring, machined brass cage (spherical roller) |
| BC | Roller-guided cast iron cage (wind turbine main shafts) |
Cage Design
| Suffix | Meaning |
|---|---|
| F | Machined steel cage |
| J | Stamped steel cage |
| Y | Stamped brass cage |
| M | Machined brass cage |
| MA | Machined brass cage, outer ring centred |
| MB | Machined brass cage, inner ring centred |
| L | Machined light alloy (aluminium) cage |
| TN | Moulded polyamide (nylon) cage |
| TN9 | Glass fibre reinforced polyamide cage (PA66) |
| TNH | Glass fibre reinforced PEEK cage |
| P | Glass fibre reinforced polyamide cage, injection moulded |
| PH | Glass fibre reinforced PEEK cage, roller centred |
| V | Full complement (no cage) |
| VH | Full complement, self-retaining (no cage) |
Snap Ring, Bore & Flange
| Suffix | Meaning |
|---|---|
| N | Snap ring groove in the outer ring |
| NR | Snap ring groove in outer ring with snap ring |
| R | Flanged outer ring |
| K | Tapered bore, taper 1:12 |
| K30 | Tapered bore, taper 1:30 |
| X | Dimensions not per ISO series |
Tolerance Class
| Suffix | Meaning |
|---|---|
| CLN | Normal tolerance (ISO class Normal) |
| P6 | ISO class 6 (ABEC-3) |
| P5 | ISO class 5 (ABEC-5) |
| P4 | ISO class 4 (ABEC-7) |
| SP | Super-precision class |
| UP | Ultra-precision class |
Stabilization / Heat Treatment
| Suffix | Max Operating Temperature |
|---|---|
| S0 | Up to 150 °C (300 °F) |
| S1 | Up to 200 °C (390 °F) |
| S2 | Up to 250 °C (480 °F) |
| S3 | Up to 300 °C (570 °F) |
| S4 | Up to 350 °C (660 °F) |
Materials & Surface Treatment
| Suffix | Meaning |
|---|---|
| HA1 | Case-hardened inner and outer rings |
| HA2 | Case-hardened outer ring |
| HA3 | Case-hardened inner ring |
| HA4 | Case-hardened rings and rollers |
| HB1 | Bainite-hardened inner and outer rings |
| HN1 | Special surface heat treatment on both rings |
| L4B | Rings and rollers black oxidized |
Matched Bearing Sets
| Suffix | Meaning |
|---|---|
| DB | Back-to-back mounting (O arrangement) |
| DF | Face-to-face mounting (X arrangement) |
| DT | Tandem arrangement |
| GA | Universal matching, light preload |
| GB | Universal matching, medium preload |
| GC | Universal matching, heavy preload |
Lubrication & Grease Fill
| Suffix | Meaning |
|---|---|
| W33 | Annular groove + three lubrication holes in outer ring |
| W33X | Annular groove + six lubrication holes in outer ring |
| W64 | Solid Oil — polymer matrix lubricant, relubrication-free |
| GJN | Polyurea / mineral oil grease, −30 to +120 °C |
| HT | Wide-temp polyurea / diester grease, −40 to +150 °C |
| LHT23 | Wide-temp, low-noise lithium grease, −50 to +140 °C |
| LT10 | Low-temp grease, −55 to +120 °C |
| MT33 | Medium-temp lithium grease, quiet running |
Special Variants & Applications
| Suffix | Meaning |
|---|---|
| PEX | SKF Explorer — optimized performance |
| VP311 | SKF Food Line — FDA / EC approved blue seal |
| VA301 | Railway vehicle traction motors |
| VA350 | Railway axleboxes |
| VA405 | Vibratory applications, surface-hardened cages |
| VA991 | High-speed applications |
| VQ658 | Quiet running properties |
Need help choosing the right bearing? Call us at 1 (248) 429‑9073 or use the chat below.
Disclaimer: Apollo Industries is not an authorized distributor, reseller, or representative of SKF. All SKF trademarks and product names are the property of their respective owners. We sell genuine SKF products purchased through independent channels.