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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 32319 |
Cone Part Number | N/A X32319M |
Cup Part Number | N/A Y32319M |
Design Unit | N/A Metric |
Cage Material | N/A Stamped Steel |
Related Assembly Number(s) | N/A 32319-9X241 |
Dimensions
d - Bore | N/A 95 mm3.7402 in |
D - Cup Outer Diameter | N/A 200 mm7.874 in |
B - Cone Width | N/A 67 mm2.6378 in |
C - Cup Width | N/A 55 mm2.1654 in |
T - Bearing Width | N/A 71.5 mm2.815 in |
Abutment and Fillet Dimensions
| R - Cone Backface "To Clear" Radius1 | N/A 4 mm0.16 in |
| r - Cup Backface "To Clear" Radius2 | N/A 3 mm0.12 in |
da - Cone Frontface Backing Diameter | N/A 114 mm4.49 in |
db - Cone Backface Backing Diameter | N/A 124 mm4.88 in |
Da - Cup Frontface Backing Diameter | N/A 185.9 mm7.32 in |
Db - Cup Backface Backing Diameter | N/A 180.1 mm7.09 in |
Ab - Cage-Cone Frontface Clearance | N/A 5.6 mm0.22 in |
Aa - Cage-Cone Backface Clearance | N/A 9.7 mm0.38 in |
| a - Effective Center Location3 | N/A -23.4 mm-0.92 in |
Basic Load Ratings
| C90 - Dynamic Radial Rating (90 million revolutions)4 | N/A 162000 N36500 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | N/A 626000 N141000 lbf |
C0 - Static Radial Rating | N/A 714000 N161000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | N/A 95900 N21600 lbf |
Factors
| K - Factor7 | N/A 1.69 |
| e - ISO Factor8 | N/A 0.35 |
| Y - ISO Factor9 | N/A 1.74 |
G1 - Heat Generation Factor (Roller-Raceway) | N/A 261.5 |
G2 - Heat Generation Factor (Rib-Roller End) | N/A 36.5 |
| Cg - Geometry Factor10 | N/A 0.101 |
- 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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