Warning: To ensure that the drive is not unexpectedly started, turn off and lockout the power source before proceeding.Failure to observe these precuations could result in bodily injury. Under certain operating conditions it is possible for a static change to build-up on Polymer (Thermoplastic) Housing. Do not operate these bearings in any environment where a sudden static discharge may cause either an operating hazard or personal discomfort.

1.

Clean shaft and bearing bore thoroughly. File flats on shaft at set screw locations to permit easy removal of bearing.

2

Slip bearing into position. Be sure that the bearing is not a worn section of the shaft. For tighter fits, tap inner ring face only with a soft driver. DO NOT HAMMER ON THE OUTER RING OR HOUSING.

3.

The bearing outer ring OD is spherical and swivels in the housing to accomodate misalignment. Snug the hold-down bolts and use shaft to swivel each bearing until its final position is in the center of free movement top to bottom as well as side to side for expansion type units. Pass shaft through both bearings without forcing. This will prevent preloading torque, number of bolts and friction characteristics between mounting surfaces. Auxiliary load carrying devices such as shear bars are advisable for side or end loading of pillow blocks ans radial loads for fluange uints where normal to heavy loading or shock loading is encountered. NOTE: On on-metallic housings, hold-down bolts should be tightened carefully with flat washers to prevent damage.

4.

Tighten hold-down bolts to the proper torque (see chart 5). Turn shaft by hand. Resistance to turning should be the same as before tightening hold-down bolts.

5.

For setscrew mounted bearings: After the shaft is aligned, tighten both setscrews hand tght, then tighten the setscrews alternately until the torque is reached according to Chart 4. After 24 hours of operation, the setscrews should be re-tightened to assure full locking of the shaft. Wrenches or drivers should be in good condition, (flats not rounded over) as this could damage the screws and not allow proper tightening. Screws may be re-tightened manay times without damaging the bearings. Setscrews may be replaced to achive maximum holding power.

6.

For eccentric collar mounted bearing: Slide the collar against the mating cam end of the inner race of the bearing. Use a mind steel bar in the hole provided in the collar, tap the collar sharply in the direction of shaft rotation. Tighten setscrew(s) to the proper torque shown in Chart 4. To remove bearings, loosen the setscrew(s) tap the collar in the direction opposite shaft rotation.

7.

For adapter mount bearings with locknuts: Slide the assembly onto the shaft. Hold-down bolts for adapter mounted units shoukd be tightened after the bearing is locked to the shaft. Snug locking nut by hand on each bearing noting the hold-down bolt hole position. The bearing will shift slightly as the nuts is tightened. This should be less than 1/8" inch, so re-positioning the bearing may be necessary if carefyl installation is not followed. Care must be taken to ensure that the locknut is not over tightened as this can eliminate the bearing internal clearance, resulting in premative failure. A lock-washer is provided which prevents the locknut from "backing-off" when one of the tabs ingaged with the corresponding notch in the locknut. See Chart 3 for recommended tightening torques for locknuts.