Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Self-aligning ball bearings | |
| Bore diameter | d | 20 mm |
| Outside diameter | D | 47 mm |
| Width | B | 14 mm |
| Basic dynamic load rating | C | 12.7 kN |
| Basic static load rating | C0 | 3.4 kN |
| Fatigue load limit | Pu | 0.176 kN |
| Reference speed | nref | 32000 r/min |
| Limiting speed | nG | 20000 r/min |
| Mass | ≈m | 0.111 kg |
| Internal clearance | CN | |
| Sealing | Without | |
| Cage | Non-metallic | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 20.0 mm | |
| Outside diameter | 47.0 mm | |
| Width | 14.0 mm |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Self-aligning ball bearings | |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/self-aligning-ball-bearings | |
| Structure group ID | BJ1_001 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Abutment diameter shaft | d a | min. 25.6 mm |
| Abutment diameter housing | D a | max. 41.4 mm |
| Fillet radius | r a | max. 1 mm |
Engineering — Calculation data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | C | 12.7 kN |
| Basic static load rating | C 0 | 3.4 kN |
| Fatigue load limit | P u | 0.176 kN |
| Reference speed | 32000 r/min | |
| Limiting speed | 20000 r/min | |
| Permissible angular misalignment | α | 2.5 ° |
| Calculation factor | k r | 0.04 |
| Limiting value | e | 0.3 |
| Calculation factor | Y 0 | 2.2 |
| Calculation factor | Y 1 | 2.1 |
| Calculation factor | Y 2 | 3.3 |
Engineering — Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 20 mm |
| Outside diameter | D | 47 mm |
| Width | B | 14 mm |
| Shoulder diameter inner ring | d 1 | ≈ 28.88 mm |
| Shoulder diameter outer ring | D 1 | ≈ 40 mm |
| Chamfer dimension | r 1,2 | min. 1 mm |
Engineering — Engineering specifications1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Bore type | Cylindrical |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.111 kg | |
| eClass code | 23-05-08-06 | |
| UNSPSC code | 31171532 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 12.7 kN | |
| Basic static load rating | 3.4 kN | |
| Reference speed | 32000.0 r/min | |
| Limiting speed | 20000.0 r/min |
Properties13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Retaining feature, inner ring | None | |
| Locating feature, bearing outer ring | Without | |
| Number of rows | 2 | |
| Bore type | Cylindrical | |
| Cage | Non-metallic | |
| Radial internal clearance | CN | |
| Tolerance class | Normal | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | Without | |
| Indicative carbon footprint for new product | 0.41 kg CO 2 e |