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 | 50 mm |
| Outside diameter | D | 90 mm |
| Width | B | 30.2 mm |
| Basic dynamic load rating | C | 51 kN |
| Basic static load rating | C0 | 42.5 kN |
| Fatigue load limit | Pu | 1.8 kN |
| Reference speed | nref | 8000 r/min |
| Limiting speed | nG | 7000 r/min |
| Mass | ≈m | 0.667 kg |
| Sealing | Without | |
| Cage | Non-metallic | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 50.0 mm | |
| Outside diameter | 90.0 mm | |
| Width | 30.2 mm | |
| Contact angle | 30.0 ° |
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 | No |
Engineering — Abutment dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Abutment diameter shaft | d a | min. 57 mm |
| Abutment diameter housing | D a | max. 83 mm |
| Fillet radius | r a | max. 1 mm |
Engineering — Calculation data12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 51 kN |
| Basic static load rating | C 0 | 42.5 kN |
| Fatigue load limit | P u | 1.8 kN |
| Reference speed | 8000 r/min | |
| Limiting speed | 7000 r/min | |
| Calculation factor | k r | 0.06 |
| Limiting value | e | 0.8 |
| Calculation factor | X | 0.63 |
| Calculation factor | Y 0 | 0.66 |
| Calculation factor | Y 1 | 0.78 |
| Calculation factor | Y 2 | 1.2 |
Engineering — Dimensions7 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 50 mm |
| Outside diameter | D | 90 mm |
| Width | B | 30.2 mm |
| Recess diameter inner ring shoulder | d 2 | ≈ 57.8 mm |
| Recess diameter outer ring shoulder | D 2 | ≈ 82.1 mm |
| Chamfer dimension inner ring | r 1,2 | min. 1.1 mm |
| Distance pressure point(s) | a | 52 mm |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 0.667 kg | |
| eClass code | 23-05-08-03 | |
| UNSPSC code | 31171531 |
Performance5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 51.0 kN | |
| Basic static load rating | 42.5 kN | |
| Reference speed | 8000.0 r/min | |
| Limiting speed | 7000.0 r/min | |
| SKF performance class | SKF Explorer |
Properties15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Contact type | Normal contact (two-point contact) | |
| Number of rows | 2 | |
| Locating feature, bearing outer ring | Without | |
| Ring type | One-piece inner and outer rings | |
| Cage | Non-metallic | |
| Arrangement of contact angle (double-row bearing) | Back-to-back (O) | |
| Matched arrangement | No | |
| Universal matching bearing | No | |
| Axial internal clearance | CN | |
| Material, bearing | Bearing steel | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | Without | |
| Indicative carbon footprint for new product | 2.5 kg CO 2 e |
