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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 | Dimensions | Abutment and Fillet Dimensions | Basic Load Ratings | Factors
Specifications
Series | N/A 835 |
Cone Part Number | N/A 837 |
Cup Part Number | N/A 832 |
Design Unit | N/A Inch |
Cage Material | N/A Stamped Steel |
Dimensions
d - Bore | N/A 3 in76.2 mm |
D - Cup Outer Diameter | N/A 6.6250 in168.275 mm |
B - Cone Width | N/A 2.2190 in56.363 mm |
C - Cup Width | N/A 1.6250 in41.275 mm |
T - Bearing Width | N/A 2.1250 in53.975 mm |
Abutment and Fillet Dimensions
| R - Cone Backface "To Clear" Radius1 | N/A 0.03 in0.800 mm |
| r - Cup Backface "To Clear" Radius2 | N/A 0.130 in3.30 mm |
da - Cone Frontface Backing Diameter | N/A 3.5 in89 mm |
db - Cone Backface Backing Diameter | N/A 3.54 in90 mm |
Da - Cup Frontface Backing Diameter | N/A 6.14 in155.96 mm |
Db - Cup Backface Backing Diameter | N/A 5.87 in149.10 mm |
Ab - Cage-Cone Frontface Clearance | N/A 0.1 in2.5 mm |
Aa - Cage-Cone Backface Clearance | N/A 0.13 in3.3 mm |
| a - Effective Center Location3 | N/A -0.73 in-18.5 mm |
Basic Load Ratings
| C90 - Dynamic Radial Rating (90 million revolutions)4 | N/A 28300 lbf126000 N |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | N/A 109000 lbf485000 N |
C0 - Static Radial Rating | N/A 117000 lbf522000 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | N/A 14500 lbf64400 N |
Factors
| K - Factor7 | N/A 1.95 |
| e - ISO Factor8 | N/A 0.3 |
| Y - ISO Factor9 | N/A 2 |
G1 - Heat Generation Factor (Roller-Raceway) | N/A 197.9 |
G2 - Heat Generation Factor (Rib-Roller End) | N/A 34.8 |
| Cg - Geometry Factor10 | N/A 0.0937 |
- 1 These maximum fillet radii will be cleared by the bearing corners.
- 2 These maximum fillet radii will be cleared by the bearing corners.
- 3 Negative value indicates effective center inside cone backface.
- 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
- 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
- 6 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.
- 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 10 Geometry constant for Lubrication Life Adjustment Factor a3l.
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