| 参数 | 数据 | 说明 |
|---|---|---|
| Series | 2500 | |
| Cone Part Number | 2558 | |
| Cup Part Number | 2524YD | |
| Design Units | Imperial | |
| Bearing Weight | 2.5704 lb | |
| Bearing Weight | 1.1659 Kg | |
| Cage Type | Stamped Steel | |
| D - Cup Outer Diameter | 2.7500 in | |
| D - Cup Outer Diameter | 69.850 mm | |
| d - Cone Bore | 1.1875 in | |
| d - Cone Bore | 30.163 mm | |
| B - Cone Width | 0.9983 in | |
| B - Cone Width | 25.357 mm | |
| C - Double Cup Width | 2.2500 in | |
| C - Double Cup Width | 57.150 mm | |
| T - Bearing Width across Cones | 2.6250 in | |
| T - Bearing Width across Cones | 66.675 mm | |
| Z - Number of Rollers Per Row | 16 | |
| Ka - Locking Pin Diameter | N/A | |
| Kb - Locking Pin Depth | N/A | |
| R - Cone Backface "To Clear" Radius | 0.090 in | These maximum fillet radii will be cleared by the bearing corners. |
| R - Cone Backface "To Clear" Radius | 2.300 mm | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Frontface "To Clear" Radius | 0.03 in | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Frontface "To Clear" Radius | 0.8 mm | These maximum fillet radii will be cleared by the bearing corners. |
| db - Cone Backface Backing Diameter | 1.57 in | |
| db - Cone Backface Backing Diameter | 39.90 mm | |
| Da - Cup Frontface Backing Diameter | 2.56 in | |
| Da - Cup Frontface Backing Diameter | 64.01 mm | |
| Aa - Cage-Cone Backface Clearance | 0.04 in | |
| Aa - Cage-Cone Backface Clearance | 1.00 mm | |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions) | 4880 lbf | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value. |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions) | 21700 N | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value. |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions) | 32800 lbf | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions) | 146000 N | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions) | 8500 lbf | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value. |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions) | 37800 N | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value. |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) | 2280 lbf | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value. |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) | 10200 N | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value. |
| K - Factor | 2.14 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| e - ISO Factor | 0.57 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y1 - ISO Factor | 1.19 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y1 - ISO Factor | 1.78 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y2 - ISO Factor | 1.78 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G1 - Heat Generation Factor (Roller-Raceway) | 23.6 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G2 - Heat Generation Factor (Rib-Roller End) | 9.63 | |
| Cg - Geometry Factor | 0.0656 | Geometry constant for Lubrication Life Adjustment Factor a3l. |
















