Tech Talk Blog

Recent studies have proven beyond question that the surface finish of the mating hardware when using composite bearings will make or break the performance. In a rotary test, the 8rms mating surface finish had a wear rating of 1, at 16rms it increased to 1.4, 32 rms 2.2 and at 63 rms 5.3. It was also noted in the test that the method of finishing also influenced the bearing wear. Roller burnished surfaces performed the best with ground and polished next best. Turned finishes or mill finishes, even at 16rms, tended to have faster wear than the other finishing techniques.

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TriStar’s CJ bearings are filament wound composite bearings with various liner materials for specific applications. CJ bearings are able to operate from cryogenic to +350 temperatures with NO LUBRICATION. CJ bearings are primarily for high load, medium speed linear or oscillating applications such as lift and tilt points on equipment. The FCJ and Super CJ are designed for high loads and high speeds with 400 sfpm attainable without lube. CJ bearings are truly maintenance free bearings and cost effective even when compared with bronze bushings. For more information on CJ bearings visit www.tstar.com. And don’t forget to contact TriStar to learn how CJ bearings can help with your product performance.