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Design and Theory

For most applications, the ball screw end(s) will be supported in a bearing. Configurations that are commonly used to support the ends of a ball screw are:
  • A deep groove radial bearing (floating simple support)
  • A pair of back-to-back, angular contact bearings to control end play (fixed support)

 Example of a simple support (left) and a fixed support

End fixity

Four combinations of bearing supports are typically used for selection purposes. Fixed-free offers the least support where Fixed-Fixed offers the most support.

End fixity

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