Spacers between the Wheel Bearings [Motorcycle wheels]
Spacers between the Wheel Bearings [Motorcycle wheels]
(OP)
I am trying to understand what the dimension of the spacer between the wheel bearing should be. I believe because the axle tightens the middle spacer onto the inner races of both the bearings the spacer should be slightly larger than the nominal distance between the bearings so that when the axle is tightened the spacer compresses such that lateral load on the bearing goes to a minima and least bearing resistance is seen.
Question - how is this bearing toleranced, when tightening the axle is there a standard torque that is applied or is the axle tightened until the wheel is free?
Question - how is this bearing toleranced, when tightening the axle is there a standard torque that is applied or is the axle tightened until the wheel is free?





RE: Spacers between the Wheel Bearings [Motorcycle wheels]
I'd shoot for spacer length equal to the hub shoulder-to-shoulder distance within 0.001 inch. Until proven otherwise.
Is there no spec for your axle torque?
RE: Spacers between the Wheel Bearings [Motorcycle wheels]
The thing is that I am actually changing the bearing off set for the wheel so I need to provide my own tightening torque and Spacer dimension.
The torque question comes because I have typically seen mechanics put together a wheel torque the axle until the wheel is free.
RE: Spacers between the Wheel Bearings [Motorcycle wheels]
Tolerancing such a scheme needs to consider things like camber stiffness, temperatures, and bearing life. It is non trivial, and is not a well defined calculation.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Spacers between the Wheel Bearings [Motorcycle wheels]
RE: Spacers between the Wheel Bearings [Motorcycle wheels]
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?