Railways Technical Ability Automobile Engineering Question Bank Automobile Engineering

  • question_answer Which one of the following statements is not true of rolling contact bearing?

    A) The bearing characteristic number is given by \[\frac{ZN}{p}\] where Z is the absolute viscosity of the lubricant, Nis the shaft speed and p is the bearing pressure.

    B) Inner race of a radial ball bearing has an interference fit with the shaft and rotates along with it.

    C) Outer race of the hearing has in interference fit with bearing housing and does not rotate.

    D) In some cases, the inner race is stationary and outer race rotates.

    Correct Answer: D


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