Thrust Bearings

Thrust bearings are designed to handle pure thrust motion only. Thrust motion, sometimes called rotary motion, refers to radial motion, like that of a wheel spinning. In general, thrust bearings are not designed for heavy loads. Thrust bearings are used in low-speed applications and can be found in products like Lazy Susans and barstools.

Thrust bearings are relatively small components placed between moving parts in order to reduce friction due to movement. Thrust bearings can be made of many different materials and can be of various sizes and designs.

Thrust bearings consist of inner and outer rings, inner and outer tracks, and balls. A row of spherical bearings revolves around the circular track. In a thrust ball bearing, the pressure from the load is transmitted from the outer track to the balls and from the balls to the inner track. In effect, the small balls located in the rings of thebearing "bear" the weight of the load, permitting the machine to run smoothly.

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