Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Angular contact ball bearings | |
| Bore diameter | d | 220 mm |
| Outside diameter | D | 309.5 mm |
| Width | B | 76 mm |
| Basic dynamic load rating | C | 312 kN |
| Basic static load rating | C0 | 520 kN |
| Fatigue load limit | Pu | 13.4 kN |
| Reference speed | nref | 2000 r/min |
| Limiting speed | nG | 2000 r/min |
| Mass | ≈m | 17.6 kg |
| Sealing | Without | |
| Cage | Machined brass | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 220.0 mm | |
| Outside diameter | 309.5 mm | |
| Width | 76.0 mm | |
| Contact angle | 32.0 ° |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Angular contact ball bearings | |
| Official taxonomy path | /products/rolling-bearings/ball-bearings/angular-contact-ball-bearings/double-row-angular-contact-ball-bearings | |
| Structure group ID | BA2_001 | |
| Available from SKF | Yes | |
| Remanufacturable | Yes |
Engineering — Abutment dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Abutment diameter shaft | d a | min. 225 mm |
| Abutment diameter housing | D a | max. 284 mm |
| Fillet radius | r a | max. 2.1 mm |
Engineering — Calculation data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | C | 312 kN |
| Basic static load rating | C 0 | 520 kN |
| Fatigue load limit | P u | 13.4 kN |
| Reference speed | 2000 r/min | |
| Limiting speed | 2000 r/min | |
| Calculation factor | k r | 0.1 |
| Limiting value | e | 0.86 |
| Calculation factor | X | 0.62 |
| Calculation factor | Y 0 | 0.63 |
| Calculation factor | Y 1 | 0.73 |
| Calculation factor | Y 2 | 1.2 |
Engineering — Dimensions9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 220 mm |
| Outside diameter | D | 309.5 mm |
| Width | B | 76 mm |
| Shoulder diameter inner ring for two-piece inner ring | d 1 | ≈ 252.5 mm |
| Shoulder diameter outer ring | D 1 | ≈ 286 mm |
| Width annular lubrication groove at outer ring | b | 13.9 mm |
| Diameter lubrication hole (outer ring) | K | 7.5 mm |
| Chamfer dimension inner ring for two-piece inner ring | r 1,2 | min. 2.1 mm |
| Distance pressure point(s) | a | 204 mm |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 17.6 kg | |
| eClass code | 23-05-08-03 | |
| UNSPSC code | 31171531 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 312.0 kN | |
| Basic static load rating | 520.0 kN | |
| Reference speed | 2000.0 r/min | |
| Limiting speed | 2000.0 r/min |
Properties15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Contact type | Normal contact (two-point contact) | |
| Number of rows | 2 | |
| Locating feature, bearing outer ring | Without | |
| Ring type | Two-piece inner ring and one-piece outer ring | |
| Cage | Machined brass | |
| Arrangement of contact angle (double-row bearing) | Back-to-back (O) | |
| Matched arrangement | No | |
| Universal matching bearing | No | |
| Axial internal clearance | NSTD | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | With | |
| Indicative carbon footprint for new product | 65.2 kg CO 2 e |