Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Combined needle roller / thrust ball bearings | |
| Bore diameter | d | 12 mm |
| Outside diameter | D | 21 mm |
| Width | B | 18 mm |
| Reference speed | nref | 8000 r/min |
| Limiting speed | nG | 5300 r/min |
| Mass | ≈m | 0.0238 kg |
| Bearing material | Bearing steel |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 12.0 mm | |
| Outside diameter | 21.0 mm | |
| Width | 18.0 mm |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Combined needle roller / thrust ball bearings | |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/needle-roller-bearings/combined-needle-roller-bearings | |
| Structure group ID | BVN_002_003 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of shaft abutment | d a | min. 16.6 mm |
| Diameter of housing abutment | D a | max. 19 mm |
| Distance side face to back face of snap ring | C a | 10 mm |
| Radius of fillet | r a | max. 0.3 mm |
| Bore diameter of associated inner ring | d i | 8 mm |
| Diameter of inner ring raceway | F | 12 mm |
| Width of associated inner ring | B i | 10 mm |
Engineering — Associated products2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Inner ring | IR 8x12x10 IS1 | |
| Snap ring | SW 21 |
Engineering — Calculation data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating, radial | C | 5.39 kN |
| Basic static load rating, radial | C 0 | 5.2 kN |
| Basic dynamic load rating, axial | C | 5.27 kN |
| Basic static load rating, axial | C 0 | 9.65 kN |
| Fatigue load limit, radial | P u | 0.61 kN |
| Fatigue load limit, axial | P u | 0.355 kN |
| Minimum axial load factor | A | 0.0005 |
| Reference speed | 8000 r/min | |
| Limiting speed | 5300 r/min |
Engineering — Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter under rollers | F w | 12 mm |
| Outside diameter | D | 21 mm |
| Width | C | 18 mm |
| Distance side face to lubrication hole | C 2 | 4.7 mm |
| Bore diameter of thrust part | d | 12 mm |
| Chamfer dimension | r 1,2 | min. 0.3 mm |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.0238 kg | |
| eClass code | 23-05-09-03 | |
| UNSPSC code | 31171512 |
Performance2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Reference speed | 8000.0 r/min | |
| Limiting speed | 5300.0 r/min |
Properties12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Rolling bearing type | Needle roller / full complement thrust ball bearing | |
| Bearing part | Radial part without inner ring | |
| Thrust part | Without cage | |
| Radial part | With cage | |
| Rolling element (thrust part) | Balls | |
| Axial load capability | Single-direction | |
| Tolerance class | Other | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Special feature | Thrust part with stamped steel cover without lubrication holes | |
| Lubricant (thrust part) | Grease | |
| Indicative carbon footprint for new product | 0.09 kg CO 2 e |