Ball thrust bearings are a type of rotary bearing that is specifically designed to handle axial loads, or loads that are parallel to the axis of rotation. These bearings are commonly used in turntables, where they allow for smooth and precise rotation of the platform. Ball thrust bearings consist of two washers, which are typically made of steel, and a series of small steel balls that are held in place by a cage. The washers are designed to be flat and parallel to one another, and the balls are positioned between them. When a force is applied to the top washer, the balls roll along the surface of the bottom washer, allowing for smooth rotation. One of the key advantages of ball thrust bearings is their ability to handle high axial loads, which makes them ideal for use in turntables. They are also relatively compact and lightweight, which makes them easy to install and maintain. However, they are not well-suited for handling radial loads, or loads that are perpendicular to the axis of rotation. In addition, they can be prone to wear and damage if they are not properly lubricated or maintained. Overall, ball thrust bearings are an essential component of turntables and other rotary applications that require precise and smooth axial rotation. They are designed to handle high axial loads and are relatively compact and lightweight, making them an ideal choice for a wide range of applications.
rotary bearing, axial loads, steel balls, turntables, precise rotation
CITATION : "Brandon Murphy. 'Ball Thrust Bearings For Turntables.' Design+Encyclopedia. https://design-encyclopedia.com/?E=364218 (Accessed on August 02, 2025)"
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