| 参数 | 数据 | 说明 |
|---|---|---|
| Series | 1900 | |
| Cone Part Number | 1994X | |
| Cup Part Number | 1931 | |
| Design Units | Imperial | |
| Bearing Weight | 0.6000 lb | |
| Bearing Weight | 0.3000 Kg | |
| Cage Type | Stamped Steel | |
| D - Cup Outer Diameter | 2.3750 in | |
| D - Cup Outer Diameter | 60.325 mm | |
| d - Cone Bore | 1.0000 in | |
| d - Cone Bore | 25.400 mm | |
| B - Cone Width | 0.7620 in | |
| B - Cone Width | 19.355 mm | |
| C - Cup Width | 0.6250 in | |
| C - Cup Width | 15.875 mm | |
| T - Bearing Width | 0.7813 in | |
| T - Bearing Width | 19.845 mm | |
| Z - Number of Rollers Per Row | 14 | |
| R - Cone Backface "To Clear" Radius | 0.140 in | These maximum fillet radii will be cleared by the bearing corners. |
| R - Cone Backface "To Clear" Radius | 3.560 mm | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Backface "To Clear" Radius | 0.050 in | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Backface "To Clear" Radius | 1.27 mm | These maximum fillet radii will be cleared by the bearing corners. |
| da - Cone Frontface Backing Diameter | 1.20 in | |
| da - Cone Frontface Backing Diameter | 30.48 mm | |
| db - Cone Backface Backing Diameter | 1.46 in | |
| db - Cone Backface Backing Diameter | 37.08 mm | |
| Da - Cup Frontface Backing Diameter | 2.20 in | |
| Da - Cup Frontface Backing Diameter | 55.88 mm | |
| Db - Cup Backface Backing Diameter | 2.05 in | |
| Db - Cup Backface Backing Diameter | 52.07 mm | |
| Ab - Cage-Cone Frontface Clearance | 0.04 in | |
| Ab - Cage-Cone Frontface Clearance | 1.02 mm | |
| Aa - Cage-Cone Backface Clearance | 0.03 in | |
| Aa - Cage-Cone Backface Clearance | 0.76 mm | |
| a - Effective Center Location | -0.23 in | Negative value indicates effective center inside cone backface. |
| a - Effective Center Location | -5.80 mm | Negative value indicates effective center inside cone backface. |
| C90 - Dynamic Radial Rating (90 million revolutions) | 2820 lbf | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values. |
| C90 - Dynamic Radial Rating (90 million revolutions) | 12500 N | Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values. |
| C1 - Dynamic Radial Rating (1 million revolutions) | 10900 lbf | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C1 - Dynamic Radial Rating (1 million revolutions) | 48400 N | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C0 - Static Radial Rating | 11300 lbf | |
| C0 - Static Radial Rating | 50200 N | |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) | 1590 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) | 7080 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 | 1.77 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| e - ISO Factor | 0.33 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y - ISO Factor | 1.82 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G1 - Heat Generation Factor (Roller-Raceway) | 12.5 | |
| G2 - Heat Generation Factor (Rib-Roller End) | 6.33 | |
| Cg - Geometry Factor | 0.0565 |
















