Up to 80% of all electric motors are rebuilt due to bearing failure. Few failures are the result of true bearing steel fatigue. Most failures are caused by improper bearing use or inadequate maintenance, and can be controlled. SKF research shows that, with proper installation and maintenance, bearings in electric motors often function properly for over 10 years. The following maintenance tips help provide trouble-free bearing life

   These electric motor ball bearings are rated EMQ2 (ZV3) for very low noise or low vibration applications. Various radial play groups can be supplied but the most commonly stocked are CN (standard) radial play or C3 (loose) radial play. Usually supplied in SAE52100 chrome steel, our electric motor bearings are individually tested before approval. These deep groove radial ball bearings can withstand heavy radial loads and moderate thrust loads in both directions. Many other sizes can be supplied as low noise but these are the most commonly used.

   One of the most important components of any electro-mechanical maintenance program is the lubrication of bearings. Yet, this vital aspect of preventive maintenance remains one of the least understood functions of maintenance. There is constant debate concerning whether a bearing should be ‘flushed,’ a limited amount of grease added, how often or if the motor should be operating or tagged-out. Many motor manufactures outline the preferred, and safest, method for lubricating electric motor bearings. There are specific physical properties for this process in the motor bearing housing and in order to protect motor windings from contamination.
Electric motor bearings enable the armature inside the motor casing to rotate smoothly. Because the bearings are continuously in contact with the armature spindle they need replacing every so often. Electric motor bearings are inexpensive, but getting someone to replace them for you increases the cost considerably. If you have a basic tool kit, you can keep down the cost by replacing the electric motor bearings yourself. Does this Spark an idea?

   If the bearings inside the electric motor on your Swimming Pool Pump are starting to make noise you will have to replace them with new bearings or you can replace the entire motor, but why do that when in a few hours you can replace the bearings for a way lower price then buying a new motor. Plus there is no reason to throw away a good motor when the motor on your Super Pump can just be re-built. If you think about it, rebuilding your pool pump motor instead of replacing it is a ECO-friendly thing that you are doing because you are creating less waste.