Frequently Asked Questions

HLB (HARDLOCK Bearing Nut) Post-Installation Maintenance Q&A

Is it possible to paint tightened HARDLOCK Bearing Nut s?
Yes. Painting a tightened HARDLOCK Bearing Nut will not affect its vibration resistance performance.
What special care should be taken when removing HARDLOCK Bearing Nut?
First, apply lubricant to the shaft and the nuts. Then remove the concave nut first, followed by the convex nut. Do not attempt to remove both nuts together as this will cause the nuts seize up.
Are there any cautions to be observed when reusing HARDLOCK Bearing Nuts?
Do not use a HARDLOCK Bearing Nut if when tightening the concave nut until it is pressed against the convex nut, no gap whatsoever is found between two nuts, as this means that the wedge effect will not function. As a rule of thumb, there should be about one pitch of the screw threads when both nuts are tightened manually.