| 参数 | 数据 | 说明 |
|---|---|---|
| Series | 55000C | |
| Cone Part Number | 55206C | |
| Cup Part Number | 55437-B | |
| Design Units | Imperial | |
| Bearing Weight | 3.0000 lb | |
| Bearing Weight | 1.3000 Kg | |
| Cage Type | Stamped Steel | |
| D - Cup Outer Diameter | 4.3750 in | |
| D - Cup Outer Diameter | 111.125 mm | |
| D1 - Flange Outer Diameter | 4.5938 in | |
| D1 - Flange Outer Diameter | 116.683 mm | |
| d - Cone Bore | 2.0625 in | |
| d - Cone Bore | 52.388 mm | |
| B - Cone Width | 1.0594 in | |
| B - Cone Width | 26.909 mm | |
| C - Cup Width | 0.8125 in | |
| C - Cup Width | 20.638 mm | |
| C1 - Cup Flange Width | 0.2188 in | |
| C1 - Cup Flange Width | 5.558 mm | |
| T1 - Bearing Width | 1.1875 in | |
| T1 - Bearing Width | 30.163 mm | |
| T - Bearing Width to Flange | 0.5938 in | |
| T - Bearing Width to Flange | 15.083 mm | |
| Z - Number of Rollers Per Row | 20 | |
| 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 | 3.600 mm | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Backface "To Clear" Radius | 0.130 in | These maximum fillet radii will be cleared by the bearing corners. |
| r - Cup Backface "To Clear" Radius | 3.30 mm | These maximum fillet radii will be cleared by the bearing corners. |
| da - Cone Frontface Backing Diameter | 2.54 in | |
| da - Cone Frontface Backing Diameter | 64.50 mm | |
| db - Cone Backface Backing Diameter | 2.83 in | |
| db - Cone Backface Backing Diameter | 71.90 mm | |
| Da - Cup Frontface Backing Diameter | 4.25 in | |
| Da - Cup Frontface Backing Diameter | 106.93 mm | |
| Ab - Cage-Cone Frontface Clearance | 0.14 in | |
| Ab - Cage-Cone Frontface Clearance | 3.60 mm | |
| Aa - Cage-Cone Backface Clearance | 0.20 in | |
| Aa - Cage-Cone Backface Clearance | 5.10 mm | |
| a - Effective Center Location | 0.30 in | Negative value indicates effective center inside cone backface. |
| a - Effective Center Location | 7.60 mm | Negative value indicates effective center inside cone backface. |
| C90 - Dynamic Radial Rating (90 million revolutions) | 8810 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) | 39200 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) | 34000 lbf | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C1 - Dynamic Radial Rating (1 million revolutions) | 151000 N | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C0 - Static Radial Rating | 36200 lbf | |
| C0 - Static Radial Rating | 161000 N | |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) | 13300 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) | 59300 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 | 0.66 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| e - ISO Factor | 0.88 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y - ISO Factor | 0.68 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G1 - Heat Generation Factor (Roller-Raceway) | 48.7 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G2 - Heat Generation Factor (Rib-Roller End) | 15.4 | |
| Cg - Geometry Factor | 0.120 | Geometry constant for Lubrication Life Adjustment Factor a3l. |
















