Question

You have been tasked with designing a machine that requires rolling element bearings to support a rotating shaft with gears attached to it. The shaft rotates at 1760 rpm and loads the supporting bearings with a radial load of 2,225 N and you desire an operating life of 6500 hours with 90% reliability.

If the bearing manufacturer you chose uses a L₁₀ rating life of 90 x 10⁶ revolutions for ball bearings what is the minimum value of the basic dynamic load rating C₁₀ you should select from the catalog?

Answer 1