High-friction back-up bearing for magnetic bearings

Details High-friction back-up bearing for magnetic bearings High-friction back-up bearing for magnetic bearings

1990-07-27

1992-01-21

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

384278, 384913, 310 64, H02K 516, F16C 3906

Patent

active

050830538

ABSTRACT:
An assembly in which a rotating shaft is supported by a magnetic bearing has a back-up bearing to support the shaft in the event of failure of the magnetic bearing, the back-up bearing comprising a first layer of a dry bearing material, and with a surface opposite to a wear-resistant surface portion of a second layer. One layer is provided on a stationary part of the assembly, such as a housing, and the other layer is provided on the shaft. When the coefficient of friction between the first and second layers is either relatively low, or relatively high, heat can be dissipated from the back-up bearing at a low rate; or at a high rate. Heat dissipation may be enhanced by providing fins in good thermal contact with at least one of the two layers of the back-up bearing; and each such layer, advantageously, has a high thermal conductivity.

REFERENCES:
patent: 3357756 (1967-12-01), Fehr
patent: 3698775 (1972-10-01), Gilbert
patent: 4683111 (1987-07-01), Helm et al.
patent: 4735262 (1988-04-01), Lucas
patent: 4810918 (1989-03-01), Kachuk
patent: 4848934 (1989-07-01), Blakely et al.

Affiliated with

Also associated with

Rating

High-friction back-up bearing for magnetic bearings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-friction back-up bearing for magnetic bearings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-friction back-up bearing for magnetic bearings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-117259