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Mounting of bearing unit I
May 15, 2018

Mounting of set screw unit:
a. Check accuracy of shaft
Before mounting the bearing unit, check the shaft accuracy for no bends, burrs, and other flaws.

b. Inspect the rigidity and flatness of mounting surface
The mounting surface of machine must be sufficiently rigid, and the mounting surface must be as flat and smooth as possible. Flatness: Max0.15mm (0.05mm is more useful).

c. Install bearing unit
Avoid striking the bearing with a hammer to press-fit the bearing to the shaft,if  you give a strong impact to the side surface of the inner ring, the slinger moves, and it may cause a problem. When there is a tight fit between bearing bore and shaft, we suggest you use press equipment to install.

d. Pre-tighten housing
Excessive tightening of the mounting bolts  may cause the housing to deform. Tighten the bolts to the proper torque, FK recommends using  a washer with the bolt when mounting the housing as the bolt alone may cause damage to the housing.

e. Tighten setscrews
Insert a hexagonal bar wrench into the hexagonal hole of the setscrew, and tighten the setscrews with the recommended torque.

f. Tighten housing
Excessive tightening of the mounting bolts  may cause the housing to deform. Tighten the bolts to the proper torque.