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  • Difference between ball and roller?

    nibhani

    nibhani

    @nibhani-wLU5Ju
    Updated: Oct 23, 2024
    Views: 1.2K
    What exactly is the difference between ball and roller? I've been studying this topic in my mechanical engineering textbook. Would appreciate your responses.
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Replies

  • mechky

    Member • Jun 22, 2012

    Is it about bearings?
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  • Siddhant Mukherjee

    Member • Jun 22, 2012

    this is quite simple a ball is a sphere while a roller is a cylinder. both can roll: a ball makes point contact while a roller maks line contact ideally. Speaking of bearings, you can easily visualize and differentiate a ball bearing with a roller bearing by seeing the rolling object in it. generally roller bearings are used in heavy loading conditions to reduce the stresses developed in the bearing.
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  • The myth buster

    Member • Jun 25, 2012

    type of contact explains the difference..ball has a point contact whereas roller has a line contact..A ball is a sphere whereas a roller is usually a cylinder or a frustum(a tapered roller)..!!
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  • zaveri

    Member • Jun 26, 2012

    maybe this question is about the types of bearings.

    it has already been discussed about the type of contacts, balls and rollers , make with flat surfaces.

    another point is that balls can easily change their direction of rolling. but a roller on the other hand which is cylindrical (and makes line contact) cannot do so that easily.
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