394A, Tapered Roller Bearings - The Timken
6 Based on 90 x 10 6 revolutions L 10 life. for The Timken Company life calculation method. C 90 and C a90 are radial and thrust values for a single-row. C 90(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.