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Procedure on Mounting

 

Housing

FIT mounted units are easily fitted and will function efficiently on almost any part of a machine. The following steps should be taken to insure normal service life:

- The angle between the housing base and the shaft should be within +/- 2 degrees.
- The surface the housing is mounted on should be sufficiently rigid.
- The surface the housing is mounted on should be as flat as possible.

Set Screw System

To secure the set screw system to the shaft, both set screws should be tightened uniformly. If the fit clearance between the inner ring and the shaft is very small, it is advisable to file off a part of the shaft where the set screw is to be seated. Recommended depth of the filed part should be approximately 0.01 inches to 0.02 inches.

Eccentric Locking Collar System

To secure the eccentric locking collar system, fit the collar on the inner ring into the eccentric circular groove. Tighten the collar in the direction of shaft rotation. Insert a small bar into the provided hole on the periphery of the eccentric collar and tap the bar so that the collar turns in the direction of shaft rotation. Fasten the set screw of the eccentric collar into the shaft.

INSPECTION

Even with maintenance free units, periodic inspection is a must. Inspection times vary according to the importance of operation, the level of contaminants in the working environment, and the weather, to name a few. Usually the inspection time should fall between two weeks and a month. Since the inside of the bearing can only be examined with the slinger and seals removed, the condition should be checked while in operation. Pay particular attention to vibration, noise, and overheating.

DISMOUNTING

If it becomes necessary to dismount the bearing unit for replacement, the procedure used to mount the unit should be followed in reverse order. Of special importance, be sure any set screws are turned back fully to avoid damaging the shaft.

REPLACEMENT

If the bearing needs to be replaced, this can be carried out simply with the use of a plummer block. You do not need to replace the housing, it is reuseable. To remove the bearing: - Insert the end of a hammer or similiar tool into the bore of the bearing and twist. - Tilt the bearing through a full 90 degrees. - Pull the bearing in the direction of the notches in the housing. To install a new bearing in the housing follow the same procedure in reverse.