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 | 240 mm |
| Outside diameter | D | 320 mm |
| Width | B | 60 mm |
| Basic dynamic load rating | C | 60.5 kN |
| Basic static load rating | C0 | 30.5 kN |
| Fatigue load limit | Pu | 0.98 kN |
| Reference speed | nref | 3600 r/min |
| Limiting speed | nG | 2200 r/min |
| Mass | ≈m | 11.3 kg |
| Internal clearance | C3 | |
| Sealing | Without | |
| Cage | Machined brass | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 240.0 mm | |
| Outside diameter | 320.0 mm | |
| Width | 60.0 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. 251 mm |
| Abutment diameter housing | D a | max. 309 mm |
| Fillet radius | r a | max. 2 mm |
Engineering — Calculation data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | C | 60.5 kN |
| Basic static load rating | C 0 | 30.5 kN |
| Fatigue load limit | P u | 0.98 kN |
| Reference speed | 3600 r/min | |
| Limiting speed | 2200 r/min | |
| Permissible angular misalignment | α | 3 ° |
| Calculation factor | k r | 0.02 |
| Limiting value | e | 0.16 |
| Calculation factor | Y 0 | 4 |
| Calculation factor | Y 1 | 3.9 |
| Calculation factor | Y 2 | 6.1 |
Engineering — Dimensions8 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 240 mm |
| Outside diameter | D | 320 mm |
| Width | B | 60 mm |
| Shoulder diameter inner ring | d 1 | ≈ 268.5 mm |
| Shoulder diameter outer ring | D 1 | ≈ 297.6 mm |
| Width annular lubrication groove at outer ring | b | 8.3 mm |
| Diameter lubrication hole (outer ring) | K | 4.5 mm |
| Chamfer dimension | r 1,2 | min. 2.1 mm |
Engineering — Engineering specifications1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Bore type | Cylindrical |
Logistics2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 11.3 kg | |
| UNSPSC code | 31171537 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 60.5 kN | |
| Basic static load rating | 30.5 kN | |
| Reference speed | 3600.0 r/min | |
| Limiting speed | 2200.0 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 | Machined brass | |
| Radial internal clearance | C3 | |
| Tolerance class | Normal | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | With | |
| Indicative carbon footprint for new product | 41.8 kg CO 2 e |