Question

A self-aligning ball bearing has a basic dynamic load rating (C10, for 106 revolutions) of 35 kN. If the equivalent radial load on the bearing is 45 kN, the expected life (in 106 revolutions) is

Options :

  1. below 0.5

  2. 0.5 to 0.8

  3. 0.8 to 1.0

  4. above 1.0

Show Answer

Answer :

below 0.5

Solution :

C  = 35 kN

PC = 45 kN

L90 = (C/PC)3 = (35/45)3 = 0.4705 MR

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