Types of Bearings

Have­ you ever wondered how things like inline skate wheels and electric motors spin so smoothly and quietly? The answer can be found in a neat little machine called a bearing.

Fluid and magnetic bearings can potentially give indefinite life. In practice, there are fluid bearings supporting high loads in hydroelectric plants that have been in nearly continuous service since about 1900 and which show no signs of wear.

           Contact angle is the angle between a plane perpendicular to the
            bearing axis and a line joining the two contact points between the
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           Deadweight: A fixed weight is set against the bearing ring while
            adhesive cures to retain the bearings. This system is used in many
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                  Once the initial end play has been removed (ball contact angle
                  = ao), then further axial load (preload) will cause axial
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    The basic fatigue life of a rotating deep-groove ball bearing is given as:        

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 MAXIMUM STATIC LOAD Co

      When subjected to an excessive load or shock, rolling bearings may incur a
      permanent damage to the raceways, called brinelling. This occurs when the
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