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HSLA RB-80 steel used in Unground Bearing Outer Raceways

HSLA RB-80 steel used in Unground Bearing Outer Raceways

(OP)
Has anyone ever heard over unground bearings using outer raceways manufactured from HSLA steel. Any input appreciated. I have put forth alot of effort into actual life/load dynamic testing and comparing to standard bearings using low carbon grade steel stamped outer races that have been case hardened with basically no success even at 1/2 load rating applied to HSLA outer races. Bearings are running at 60 surface feet a minute for comparative testing, both grease and oil have been run still no success on HSLA. Heavy ball paths are worn into the HSLA. Thoughts anyone?

RE: HSLA RB-80 steel used in Unground Bearing Outer Raceways

You're making bearing races from HSLA without case hardenng, and you're expecting results other than early failure?

Why?

Mike Halloran
Pembroke Pines, FL, USA

RE: HSLA RB-80 steel used in Unground Bearing Outer Raceways

(OP)
This is something that upper mgt. has been having me test. The results are less than desireable. I need to clarify the HSLA we are using is not heat treated after stamping the raceways.

RE: HSLA RB-80 steel used in Unground Bearing Outer Raceways

We need smarter frogs.

Mike Halloran
Pembroke Pines, FL, USA

RE: HSLA RB-80 steel used in Unground Bearing Outer Raceways

(OP)
Mike,

Unfortuneately.....where they at?

RE: HSLA RB-80 steel used in Unground Bearing Outer Raceways

It's a punch line; look it up.

Mike Halloran
Pembroke Pines, FL, USA

RE: HSLA RB-80 steel used in Unground Bearing Outer Raceways

(OP)
I know, just playin......

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