Uniform wear theory - Frictional torque transmitted in flat collar bearing - Theory of Machines - 1

Q.  According to uniform wear theory, frictional torque transmitted in flat collar bearing is given as
- Published on 06 Aug 15

a. 2/3 [ μ W (R1 - R2)]
b. 1/2 [ μ W (R1 + R2)]
c. 2/3 μ W [(R1 + R2) / (R1 - R2)]
d. none of the above

ANSWER: 1/2 [ μ W (R1 + R2)]


  • Saikrishn Pigili   -Posted on 31 Oct 18
  • Sravanthi   -Posted on 19 Oct 15
    According to uniform wear theory, the torque required to overcome friction between shaft and bearing surface is given as

    T = (1 / 2) μ W (R1 +R2)

    R1 = External radius of collar

    R2 = Internal radius of collar

    W = Axial load acting on the bearing

    μ = Coefficient of friction.

Post your comment / Share knowledge

Enter the code shown above:
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)