Design of a high-speed reliable ball bearing
Abstract
A high-speed, reliable ball bearing has been designed for at least fifteen years of operation in space effectors, MWA's, and RWA's. Advanced bearing concepts have been used in this design, such as: no ball retainer, which eliminates all retainer-related problems; an external lubricazing system that will supply the lubricant at a specified flow rate; and a cartridge assembly that will allow the instrument user to purchase a ready to use bearing assembly, with lubricator. Currently, two assemblies are on life test at 12,000 RPM and have accumulated over 20,000 hours each, with consistent low-torque losses. This paper will describe each of the salient features.
- Publication:
-
28th Aerospace Mechanisms Symposium
- Pub Date:
- May 1994
- Bibcode:
- 1994aeme.symp..279S
- Keywords:
-
- Accelerated Life Tests;
- Ball Bearings;
- Lubrication Systems;
- Service Life;
- Flow Velocity;
- High Speed;
- Lubricating Oils;
- Performance Tests;
- Mechanical Engineering