TIMKEN 78251D - 78537 Tapered Roller Bearings
Also known as : 78251D - 78537
- Inside Diameter: 63.5 mm
- Outside Diameter: 136.525 mm
- Width: 65.989 mm
- Basic dynamic load rating: 298 kN
- Basic static load rating: 77.2 kN
TIMKEN 78251D - 78537 Bearing
TIMKEN 78251D - 78537 Bearing details
| Bearing Number | 78251D - 78537 |
|---|---|
| Brand | TIMKEN |
| Type | Tapered Roller Bearings - TDI (Tapered Double Inner) |
| Series | 78000 |
| Cone Part Number | 78251D |
| Cup Part Number | 78537 |
| Design Units | Imperial |
| Bearing Weight |
9.5 lb 4.3 Kg |
| Cage Type | Stamped Steel |
| Aa - Cage-Cone Backface Clearance |
0 in 0 mm |
| d - Bore |
2.5000 in 63.500 mm |
| D - Cup Outer Diameter |
5.3750 in 136.525 mm |
| B - Double Cone Width |
2.5980 in 65.989 mm |
| C - Cup Width |
0.9260 in 23.520 mm |
| T - Bearing Width across Cups |
2.6020 in 66.091 mm |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions) |
9970 lbf 44300 N |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions) |
66900 lbf 298000 N |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions) |
17400 lbf 77200 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) |
14800 lbf 65700 N |
| K - Factor | 0.67 |
| e - ISO Factor | 2.6 |
| Y1 - ISO Factor | 0.26 |
| Y2 - ISO Factor | 0.39 |
| G1 - Heat Generation Factor (Roller-Raceway) | 62.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 19.1 |
| Cg - Geometry Factor | 0.0884 |
| R - Cone Frontface "To Clear" Radius |
0.090 in 2.30 mm |
| r - Cup Backface "To Clear" Radius |
0.130 in 3.30 mm |
| da - Cone Frontface Backing Diameter |
3.11 in 78.90 mm |
| Db - Cup Backface Backing Diameter |
4.53 in 115.10 mm |
| Ab - Cage-Cone Frontface Clearance |
0.08 in 2 mm |
As TIMKEN bearing distributor, Nodes bearings have TIMKEN 78251D - 78537 Tapered Roller Bearings - TDI (Tapered Double Inner) in stock.
TIMKEN bearing cross reference
TIMKEN 78251D - 78551 bearing
63.500mm x 140.030mm x 65.989mm