Specifications
Series | N/A 355 |
Cone Part Number | N/A 358X |
Cup Part Number | N/A 354 |
Design Unit | N/A Inch |
Bearing Weight | N/A 1.1 lb0.5 Kg |
Cage Material | N/A Stamped Steel |
Dimensions
d – Bore | N/A 1.7717 in45.001 mm |
D – Cup Outer Diameter | N/A 3.3465 in85.001 mm |
B – Cone Width | N/A 0.8540 in21.692 mm |
C – Cup Width | N/A 0.7480 in18.999 mm |
T – Bearing Width | N/A 0.7481 in19.002 mm |
Abutment and Fillet Dimensions
R – Cone Backface “To Clear” Radius1 | N/A 0.080 in2.000 mm |
r – Cup Backface “To Clear” Radius2 | N/A 0.08 in2.03 mm |
da – Cone Frontface Backing Diameter | N/A 1.97 in50 mm |
db – Cone Backface Backing Diameter | N/A 2.13 in54 mm |
Da – Cup Frontface Backing Diameter | N/A 3.19 in81.03 mm |
Db – Cup Backface Backing Diameter | N/A 3.03 in76.96 mm |
Ab – Cage-Cone Frontface Clearance | N/A 0.09 in2.3 mm |
Aa – Cage-Cone Backface Clearance | N/A 0 in0 mm |
a – Effective Center Location3 | N/A -0.19 in-4.8 mm |
Basic Load Ratings
C90 – Dynamic Radial Rating (90 million revolutions)4 | N/A 4770 lbf21200 N |
C1 – Dynamic Radial Rating (1 million revolutions)5 | N/A 18400 lbf81800 N |
C0 – Static Radial Rating | N/A 20000 lbf88800 N |
Ca90 – Dynamic Thrust Rating (90 million revolutions)6 | N/A 2500 lbf11100 N |
Factors
K – Factor7 | N/A 1.91 |
e – ISO Factor8 | N/A 0.31 |
Y – ISO Factor9 | N/A 1.96 |
G1 – Heat Generation Factor (Roller-Raceway) | N/A 30 |
G2 – Heat Generation Factor (Rib-Roller End) | N/A 12.2 |
Cg – Geometry Factor10 | N/A 0.0732 |
- 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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