Ceramic Bearings

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Joined
Jun 5, 2013
Messages
1,196
Location
San Francisco CA. USA
anyone have any thoughts on ceramic bearings for motors , wheels. I know they cost 3 times more ?
 
I thought about it and decided it wasnt worth it. The price was just too high. That being said you can get some stainless or ceramic bearings treated with microblue from these guys.
MicroBlue Videos
Go down and check out the Yamaha R1 front wheel video, and the bearing by itself below that. Its impressive, but to rich for my blood.
 
What I'm told is that they last 3 times longer but cost 3 times more so for Me because I plan on keeping the bike till I'm dead! It should be worth it? Unless someone talks me out of it?
 
I run two on the counter rotating thingy, that is all I could afford:)

Used selectively I think they a good idea.
 
I bet if you contacted those guys they would tell you some good info. Durability in mind, the Stainless bearings with the microblue might be pretty bulletproof.
 
Bulletproof that's what I'm looking for the older I get the lazier I get don't want be 70 and rebuilding a motor. Still a little ways away.
 
My experience with ceramic bearings on bicycles is the ceramic balls are incredibly high on hardness scale, but the races are typically too soft, relatively. The balls grind the races down pretty quickly, and if you add any water/moisture and the races are toast. This can happen in days or weeks. If you have a good waterproof grease, this helps ward off the moisture issue. Typically these bearings come with very light lithium, or similar, grease, which makes the problems worse.
Doubly important that they aren't sideloaded, as that would increase wear on the races immediately.

Maybe for a motor application where they're constantly oiled would work well enough.
 
some ktm rfs engines (same main bearing size and crank design as pre 09) have been built with ceramic ball bearings

in the 570 i honestly think that the least trouble and longest lasting will be the OEM style steel bearings, they are nice and big and the crank is relatively stiff.

ceramic bearings are good but they are prone to damage from hard debris, there are also many different designs and quality variation.
 
Talked to a bearing Guy about the ceramic bearings told high quality ones are 7 time more expensive. Some of the cheaper ones 3 times more are made in China. So not getting them.
 
I ran ceramic bearings when my sons were racing outlaw karts. Expensive but when you are looking for a hundredths and tenths of seconds every little bit helps. Wheels and axles ran noticeable more free. Never changed a set out in 5 years of racing. Ran two outlaw karts and won multiple championships. We ran hard and they held up well.
 

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