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We are one of Europe's leading suppliers of miniature ball bearings. We are highly specialised and experts in our field. To complement the range of miniature bearings, including micro bearings and mini bearings, we stock stainless steel bearings, plastic bearings, thin section bearings and low noise "electric motor bearings" .

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.

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 fag bearing life.

Not having the hands on experiance with greasing elecric motor bearings as I do with greasing heavy truck u-joints, I would grease the bearings provided there is an access point. There are u-joints on the market that are matketed as greased for life but still have a zirks installed in them. I and my customers grease them. Polling my trucking customers I found that the only u-joints they need to replace anymore are the ones that they can't re-grease "the maintenance free greased for life type". In the manufacturing industry with electric motor bearings, given any HP rating, which seems to last the longest, greasable bearings or sealed "greased for life" bearings? 

There are many bearings fitted to electric motors, obviously, and not all will be those fitted by the manufacturer of the motor. Also, the bearing housings will not always be those as fitted by the manufacturer. Either bearings or housings might have been changed at some point in time. I come across many bearing housings that will have a grease nipple fitted, thereby one might assume that the bearing within might need greasing at some stage. I also come across many bearing housings with no grease nipple fitted where, one might also assume, that greasing is not required. Additionally, I come across many ntn bearing housings where there is a female thread for a grease nipple but no nipple fitted. In this case I nearly always recommend fitting a grease nipple.