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 | Tapered roller bearings | |
| Bore diameter | d | 80 mm |
| Outside diameter | D | 140 mm |
| Width | B | 78 mm |
| Basic dynamic load rating | C | 391 kN |
| Basic static load rating | C0 | 490 kN |
| Fatigue load limit | Pu | 57 kN |
| Reference speed | nref | 3000 r/min |
| Limiting speed | nG | 4500 r/min |
| Mass | ≈m | 4.39 kg |
| Sealing | Without | |
| Cage | Sheet metal | |
| Lubricant | None |
Dimensions6 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | 80.0 mm | |
| Outside diameter | 140.0 mm | |
| Width, total | 78.0 mm | |
| Width, inner ring | 78.0 mm | |
| Width, outer ring | 63.5 mm | |
| Contact angle | 15.6 ° |
Product identity5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Official product category | Tapered roller bearings | |
| Official taxonomy path | /products/rolling-bearings/roller-bearings/tapered-roller-bearings/matched-tapered-roller-bearings | |
| Structure group ID | BT2_011 | |
| Available from SKF | Yes | |
| Remanufacturable | No |
Engineering — Abutment dimensions5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Diameter of shaft abutment | d b | min. 92 mm |
| Diameter of housing abutment | D b | min. 134 mm |
| Minimum width of space required in housing on small side face | C b | min. 7 mm |
| Radius of fillet | r a | max. 2.5 mm |
| Radius of fillet | r c | max. 0.6 mm |
Engineering — Calculation data10 parameters
| Parameter | Symbol | Value |
|---|---|---|
| SKF performance class | SKF Explorer | |
| Basic dynamic load rating | C | 391 kN |
| Basic static load rating | C 0 | 490 kN |
| Fatigue load limit | P u | 57 kN |
| Reference speed | 3000 r/min | |
| Limiting speed | 4500 r/min | |
| Limiting value | e | 0.43 |
| Calculation factor | Y 1 | 1.6 |
| Calculation factor | Y 2 | 2.3 |
| Calculation factor | Y 0 | 1.6 |
Engineering — Dimensions11 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bore diameter | d | 80 mm |
| Outside diameter | D | 140 mm |
| Total width | T | 78 mm |
| Shoulder diameter of inner ring | d 1 | ≈ 106.1 mm |
| Width of outer rings | C | 63.5 mm |
| Width of spacer ring | l | 7.5 mm |
| Width of lubrication groove | b | 4 mm |
| Diameter of lubrication hole | K | 3 mm |
| Chamfer dimension | r 1,2 | min. 2.5 mm |
| Chamfer dimension | r 5 | min. 0.6 mm |
| Distance between pressure points | a | 67.608 mm |
Logistics2 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Product net weight | 4.39 kg | |
| eClass code | 23-05-09-10 |
Performance5 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Basic dynamic load rating | 391.0 kN | |
| Basic static load rating | 490.0 kN | |
| Reference speed | 3000.0 r/min | |
| Limiting speed | 4500.0 r/min | |
| SKF performance class | SKF Explorer |
Properties12 parameters
| Parameter | Symbol | Value |
|---|---|---|
| Bearing part | Complete bearing | |
| Number of rows | 2 | |
| Locating feature, bearing outer ring | Without | |
| Bore type | Cylindrical | |
| Cage | Sheet metal | |
| Matched arrangement | Back-to-back (O) | |
| Number of bearings in matched set | 2 | |
| Coating | Without | |
| Sealing | Without | |
| Lubricant | None | |
| Relubrication feature | With | |
| Indicative carbon footprint for new product | 16.2 kg CO 2 e |