Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications13 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Angular contact ball bearings | |
| Bore diameter | d | 140 mm |
| Outside diameter | D | 250 mm |
| Width | B | 42 mm |
| Basic dynamic load rating | C | 345 kN |
| Basic static load rating | C0 | 475 kN |
| Fatigue load limit | Pu | 14.3 kN |
| Limiting speed | nG | 4300 r/min |
| Mass | ≈m | 9.36 kg |
| Sealing | Without | |
| Cage | Machined brass | |
| Bearing material | Bearing steel | |
| Lubricant | None |
Dimensions4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 140.0 mm | |
| Outside diameter | 250.0 mm | |
| Width | 42.0 mm | |
| Contact angle | 35.0 ° |
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/four-point-contact-ball-bearings | |
| Structure group ID | BAQ_001 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Abutment diameter shaft | d a | min. 154 mm |
| Abutment diameter housing | D a | max. 236 mm |
| Fillet radius | r a | max. 2.5 mm |
Engineering — Calculation data11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 345 kN |
| Basic static load rating | C 0 | 475 kN |
| Fatigue load limit | P u | 14.3 kN |
| Limiting speed | 4300 r/min | |
| Calculation factor | A | 0.56 |
| Limiting value | e | 0.95 |
| Calculation factor | X | 0.6 |
| Calculation factor | Y 0 | 0.58 |
| Calculation factor | Y 1 | 0.66 |
| Calculation factor | Y 2 | 1.1 |
Engineering — Dimensions10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 140 mm |
| Outside diameter | D | 250 mm |
| Width | B | 42 mm |
| Shoulder diameter inner ring | d 1 | ≈ 179 mm |
| Shoulder diameter outer ring/ inner diameter housing washer | D 1 | ≈ 211 mm |
| Distance pressure point(s) | a | 137 mm |
| Locating slot depth outer ring | h | 11.7 mm |
| Locating slot width outer ring | b | 10.5 mm |
| Corner radius locating slot | r 0 | 2 mm |
| Chamfer dimension inner ring | r 1,2 | min. 3 mm |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 9.36 kg | |
| eClass code | 23-05-08-05 | |
| UNSPSC code | 31171538 |
Performance4 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 345.0 kN | |
| Basic static load rating | 475.0 kN | |
| Limiting speed | 4300.0 r/min | |
| SKF performance class | SKF Explorer |
Properties14 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Contact type | Four-point contact | |
| Number of rows | 1 | |
| Locating feature, bearing outer ring | Locating slot | |
| Ring type | Two-piece inner ring and one-piece outer ring | |
| Cage | Machined brass | |
| 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 | 34.6 kg CO 2 e |