electric motor bearings
electric motor bearings
Author :Admin | Publish Date:2013-04-12 16:22:39
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.
B20-141C3U1UR
B22-19 C3
B25-139C3