Theory used to determine safe design of bearings - Theory of Machines - 1

Q.  Which theory is used to determine safe design of bearings?
- Published on 06 Aug 15

a. Uniform wear theory
b. Uniform pressure theory
c. both a. and b.
d. none of the above

ANSWER: Uniform pressure theory
 

    Discussion

  • Sravanthi   -Posted on 19 Oct 15
    - If uncertainty of load distribution is observed between surfaces in contact, two assumptions are considered as below:

    1) Uniform pressure theory

    2) Uniform wear theory

    - Uniform pressure theory is used to determine safe design of bearings.

    - It gives the maximum power lost in overcoming friction. Hence the net power available for friction is minimum.

    - The frictional torque by uniform pressure theory is greater than torque determined by uniform wear theory

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