Graymills PQL Sealed Bearing Change User Manual
Page 2
 
795-40615
0409
Graymills Corporation – 3705 N. Lincoln Ave. – Chicago, IL 60613 – Phone-773.477.4100 – Fax-773.477.4133 – www.graymills.com
5. Place shaft in a soft-jawed vise. If soft-jawed
vise is not available, use a bit of cloth, wood or 
gasket material to hold the shaft in place without 
marking or deforming it. Use the end nips to 
remove the key. Discard key after removal. (A 
replacement is part of the kit.) 
6. After removing key, pull rotor and shaft out of
housing. Set rotor/shaft and shielded bearing 
housings aside. 
7. Install sealed bearing housings by attaching the
Q-collar to the housing with the threaded inserts 
for the attachment screws, rotor and shaft, 
attachment screws, and then take the 
replacement key and tap it into place in the drive 
side keyway with the hammer.