Thread: bearing numbers ??

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this is a 4340 race crank . is this not for H series bearings ? would the cheap ones hold up? ran theses for 2 years , turning 7000 RPM regularly still look good just through the first layer.

Originally Posted by suprstock

this is a 4340 race crank . is this not for H series bearings ? would the cheap ones hold up? ran theses for 2 years , turning 7000 RPM regularly still look good just through the first layer.

the numbers are for H bearings i use king or speed pro mains. i still use there rods bearings. we spin thing s that hi .you like them keep using them i feel with a strait shot crank oiling they will work ok. but i like the 3/4 oiling groove bearing . i just moved on to others bearings