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This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure
Specifications
Series |
N/A L69300 |
Cone Part Number |
N/A JL69349 |
Design Units |
N/A METRIC |
Cage Type |
N/A Stamped Steel |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | N/A 20000 lbf88800 N |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | N/A 5170 lbf23000 N |
Dimensions
d - Bore |
N/A 38.000 mm1.4961 in |
B - Cone Width |
N/A 17.000 mm0.6693 in |
WPD |
N/A 58.9 mm2.32 in |
DD |
N/A 52.6 mm2.07 in |
Abutment and Fillet Dimensions
| R - Cone Backface "To Clear" Radius3 | N/A 0 mm0 in |
da - Cone Frontface Backing Diameter |
N/A 42.5 mm1.67 in |
db - Cone Backface Backing Diameter |
N/A 46.5 mm1.83 in |
Ab - Cage-Cone Frontface Clearance |
N/A 1.8 mm0.07 in |
Aa - Cage-Cone Backface Clearance |
N/A 0 mm0 in |
| a - Effective Center Location4 | N/A -2.3 mm-0.09 in |
- 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
- 2 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.
- 3 These maximum fillet radii will be cleared by the bearing corners.
- 4 Negative value indicates effective center inside cone backface.
- 5 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
- 6 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
- 7 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.
- 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 9 Geometry constant for Lubrication Life Adjustment Factor a3l.
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