| 参数 | 数据 | 说明 |
|---|---|---|
| Series | 30207 | |
| Cone Part Number | X30207 | |
| Cup Part Number | Y30207 | |
| Design Units | Metric | |
| Bearing Weight | 0.3000 Kg | |
| Bearing Weight | 0.800 lb | |
| Cage Type | Stamped Steel | |
| D - Cup Outer Diameter | 72.000 mm | |
| D - Cup Outer Diameter | 2.8346 in | |
| d - Cone Bore | 35.000 mm | |
| d - Cone Bore | 1.3780 in | |
| B - Cone Width | 17.000 mm | |
| B - Cone Width | 0.6693 in | |
| C - Cup Width | 15.000 mm | |
| C - Cup Width | 0.5906 in | |
| T - Bearing Width | 18.255 mm | |
| T - Bearing Width | 0.7187 in | |
| Z - Number of Rollers Per Row | 17 | |
| R - Cone Backface "To Clear" Radius | 1.520 mm | These maximum fillet radii will be cleared by the bearing corners. |
| R - Cone Backface "To Clear" Radius | 0.060 in | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Backface "To Clear" Radius | 1.52 mm | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Backface "To Clear" Radius | 0.060 in | These maximum fillet radii will be cleared by the bearing corners. |
| da - Cone Frontface Backing Diameter | 42.42 mm | |
| da - Cone Frontface Backing Diameter | 1.67 in | |
| db - Cone Backface Backing Diameter | 44.45 mm | |
| db - Cone Backface Backing Diameter | 1.75 in | |
| Da - Cup Frontface Backing Diameter | 67.10 mm | |
| Da - Cup Frontface Backing Diameter | 2.68 in | |
| Db - Cup Backface Backing Diameter | 64.01 mm | |
| Db - Cup Backface Backing Diameter | 2.52 in | |
| Ab - Cage-Cone Frontface Clearance | 2.54 mm | |
| Ab - Cage-Cone Frontface Clearance | 0.10 in | |
| Aa - Cage-Cone Backface Clearance | 0.76 mm | |
| Aa - Cage-Cone Backface Clearance | 0.03 in | |
| a - Effective Center Location | -3.30 mm | Negative value indicates effective center inside cone backface. |
| a - Effective Center Location | -0.13 in | Negative value indicates effective center inside cone backface. |
| C90 - Dynamic Radial Rating (90 million revolutions) | 15700 N | 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) | 3530 lbf | 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) | 60600 N | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C1 - Dynamic Radial Rating (1 million revolutions) | 13600 lbf | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C0 - Static Radial Rating | 63600 N | |
| C0 - Static Radial Rating | 14300 lbf | |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) | 10100 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) | 2270 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. |
| K - Factor | 1.56 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| e - ISO Factor | 0.37 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y - ISO Factor | 1.6 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G1 - Heat Generation Factor (Roller-Raceway) | 18 | |
| G2 - Heat Generation Factor (Rib-Roller End) | 13.3 | |
| Cg - Geometry Factor | 0.0662 |
















