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It's essential to align a ball screw to exhibit it's full performance. For this reason, we provide standard lock nuts exclusive for ball screws, of which perpendicularities are controlled against the screw thread.
For WBK06/08/10/12/15/17/20/25

Ballscrew support bearings must be installed with minimum inclination. NSK lock nuts exclusive for ball screw help to reduce this inclination.

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It requires an optional spacer to the side where the ball thread is cut through, such as a rolled ballscrew shaft when mounting the support unit for fixed support side.

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Support units for heavy-load  / machinetool use a thrust angular contact ball bearing (TAC Series) with high rigidity and accuracy. The thrust angular contact ball bearing has very suitable functions and structure as a ballscrew support bearing.

There are 3 combinations as shown in the PDF catalogue:
DF: Face to face duplex Combination
DFD: Face to face triplex Combination
DFF: Face to face quadruplex Combination

SolidComponents^TM