Motor Bearings

Regreasable would br my choice, unless you have no maintenance program, in which case the sealed bearings are better.

Really, now! Did you ask the motor manufacturer, are are you just looking for some free advice?

Research has shown that by using manually lubricated/greased bearings:

1. Dirt, moisture, and other contaminants are forced into the bearing by the lubrication procedure resulting in premature bearing failure.

2. Eventually the bearing cavity becomes completely full of grease with no room for expansion and excessive heating occurs resulting in premature bearing failure.

3. Overlubrication not only shortens the bearing life but also causes lubrication leaks that can be an EPA environmental issue and in the least presents housekeeping issues and fire danger.

Research also indicates that by using properly lubricated sealed and double sealed bearings:

1. The bearings are not subjected to fouling by dirt, moisture, and any other contaminants.

2. The bearings have exactly the right amount of lubricant/grease and remain properly ventilated for the life of the bearing which prevents overheating from over lubrication.

3. Countless hours of tracking field bearing failures has indicated that properly applied sealed bearings yield a much longer bearing life with fewer failures than using manually lubricated bearings.