Technical data
Product specifications
Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.
Core specifications12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Variant / construction | Tapered roller bearings | |
| Bore diameter | d | 257.175 mm |
| Outside diameter | D | 358.775 mm |
| Basic dynamic load rating | C | 1030 kN |
| Basic static load rating | C0 | 1760 kN |
| Fatigue load limit | Pu | 156 kN |
| Reference speed | nref | 1300 r/min |
| Limiting speed | nG | 1600 r/min |
| Mass | ≈m | 21.6 kg |
| Sealing | Without | |
| Cage | Sheet metal | |
| Lubricant | None |
Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 257.175 mm | |
| Outside diameter | 358.775 mm | |
| Width, total | 76.2 mm | |
| Width, inner ring | 76.2 mm | |
| Width, outer ring | 53.975 mm | |
| Contact angle | 12.5 ° |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Tapered roller bearings | |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/single-row-tapered-roller-bearings | |
| Structure group ID | BT1_001_101 | |
| Available from SKF | Yes | |
| Remanufacturable | Yes |
Engineering — Abutment dimensions9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of shaft abutment | d a | max. 276 mm |
| Diameter of shaft abutment | d b | min. 270.5 mm |
| Diameter of housing abutment | D a | min. 326 mm |
| Diameter of housing abutment | D a | max. 343 mm |
| Diameter of housing abutment | D b | min. 343 mm |
| Minimum width of space required in housing on large side face | C a | min. 11 mm |
| Minimum width of space required in housing on small side face | C b | min. 17 mm |
| Radius of shaft fillet | r a | max. 1.5 mm |
| Radius of housing fillet | r b | max. 3.3 mm |
Engineering — Calculation data9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 1030 kN |
| Basic static load rating | C 0 | 1760 kN |
| Fatigue load limit | P u | 156 kN |
| Reference speed | 1300 r/min | |
| Limiting speed | 1600 r/min | |
| Limiting value | e | 0.33 |
| Calculation factor | Y | 1.8 |
| Calculation factor | Y 0 | 1 |
Engineering — Dimensions9 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 257.175 mm |
| Outside diameter | D | 358.775 mm |
| Bearing width, total | T | 71.438 mm |
| Shoulder diameter of inner ring | d 1 | ≈ 303.4 mm |
| Width of inner ring | B | 76.2 mm |
| Width of outer ring | C | 53.975 mm |
| Chamfer dimension of inner ring | r 1,2 | min. 1.5 mm |
| Chamfer dimension of outer ring | r 3,4 | min. 3.3 mm |
| Distance side face to pressure point | a | 64.003 mm |
Engineering — Engineering specifications1 parameter
| Parameter | Symbol | Value |
|---|---|---|
| Dimension series | M 249700 |
Logistics3 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 21.6 kg | |
| eClass code | 23-05-09-10 | |
| UNSPSC code | 31171516 |
Performance5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 1030.0 kN | |
| Basic static load rating | 1760.0 kN | |
| Reference speed | 1300.0 r/min | |
| Limiting speed | 1600.0 r/min | |
| SKF performance class | SKF Explorer |
Properties15 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bearing part | Complete bearing | |
| Number of rows | 1 | |
| Locating feature, bearing outer ring | Without | |
| Bore type | Cylindrical | |
| Cage | Sheet metal | |
| Arrangement of contact angle (double-row bearing) | Not applicable | |
| Matched arrangement | No | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | Without | |
| Unit system | Inch | |
| Candidate for remanufacturing | Yes | |
| Indicative carbon footprint for new product | 80.1 kg CO 2 e | |
| Indicative carbon footprint for remanufactured product | 26.6 kg CO 2 e |