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Removing a bearing unit

If any problem with the bearing unit necessitates removal and replacement of the bearing, reverse the installation procedure. Before removing the unit, make sure of the following.

Consider the set screw type

Fig. 17

slacken the set screws, so that the screw point does not scratch on the shaft when removing the unit.

Consider the adapter type

straighten the bent tab of the lock washer, and turn back the nut by two or three turns. Then, place a metal block on the nut side face, and tap it with a hammer around the circumference to remove the sleeve (Fig. 17). NEVER tap the cover if only a portion of nut threading remains engaged. Otherwise, the thread of the nut can be damaged.