Wheel Bearing & Axle Dimensioning For Jota Required

[KLEINDORF]

I am in the process of getting some CNC manufactured front axles made, Using the stock 6004 2RS 1 bearings what kind of clearance is used between the bearing I.D. and axle O.D. I.E how much smaller than the nominal 20mm axle O.D. is desireable. There is far too much technical data to try and understand on bearing manufacturers sites so step up and be heard. Thanks.

 

[piranha-bro2]

Simplest solution would be to take a measurement off a std axle - in any case, as long as it's not flapping around in there, it shouldn't take a physics professor to work out a workable clearance. I woulda though 0.1mm would be fine.

 

[phil37]

often use a 17mm silver steel bar for a rear axle - the bearing is then a too tight fit - so I just spin spindle in the lathe and take a tad off it with some emery until bearing slides on easily with no play. not technical  but has always worked for me - but, as Quentin has said, easy to set up on a CNC machine with a half decent operator. - regards - Phil

 

[MotoJouni]

If the axle is about 0.04-0.05mm smaller than the bearing hole, it should fit there easily if nicely manufactured. Just checked the recommendation from ISO 286-1:2010.