34301 - 34478D产品参数
| 参数 | 数据 | 说明 |
|---|---|---|
| Series | 34000 | |
| Cone Part Number | 34301 | |
| Cup Part Number | 34478D | |
| Design Units | Imperial | |
| Bearing Weight | 4.1826 lb | |
| Bearing Weight | 1.8972 Kg | |
| Cage Type | Stamped Steel | |
| D - Cup Outer Diameter | 4.7812 in | |
| D - Cup Outer Diameter | 121.442 mm | |
| d - Cone Bore | 3.0000 in | |
| d - Cone Bore | 76.200 mm | |
| B - Cone Width | 0.9060 in | |
| B - Cone Width | 23.012 mm | |
| C - Double Cup Width | 1.5000 in | |
| C - Double Cup Width | 38.100 mm | |
| T - Bearing Width across Cones | 2.0625 in | |
| T - Bearing Width across Cones | 52.388 mm | |
| Z - Number of Rollers Per Row | 24 | |
| Ka - Locking Pin Diameter | N/A | |
| Kb - Locking Pin Depth | N/A | |
| 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 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 | 3.50 in | |
| db - Cone Backface Backing Diameter | 88.90 mm | |
| Da - Cup Frontface Backing Diameter | 4.60 in | |
| Da - Cup Frontface Backing Diameter | 116.84 mm | |
| Aa - Cage-Cone Backface Clearance | 0.10 in | |
| Aa - Cage-Cone Backface Clearance | 2.50 mm | |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions) | 5960 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) | 26500 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) | 40000 lbf | Based on 1 x 106 revolutions L10 life, for the ISO life calculation method. |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions) | 178000 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) | 10400 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) | 46100 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) | 4600 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) | 20500 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 | 1.3 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| e - ISO Factor | 0.99 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y1 - ISO Factor | 0.68 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y1 - ISO Factor | 1.01 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| Y2 - ISO Factor | 1.01 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G1 - Heat Generation Factor (Roller-Raceway) | 69.3 | These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. |
| G2 - Heat Generation Factor (Rib-Roller End) | 27 | |
| Cg - Geometry Factor | 0.109 | Geometry constant for Lubrication Life Adjustment Factor a3l. |
