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Originally Posted by riethoven
I use a hot plate or a coffemaker and heat the new race up to expand it, then pick it up with gloves because it is HOT and slide it on the shaft. I learned this technique from rebuilding woodworking moulders that high precision bearings. They actually had a bearing race heater that was an aluminium stepped cone with a heating element.
However, I did not know that the fit on any axle bearing was so tight that you need a bearing race installer. I recently did my W123 front wheel bearings and everything slid nicely on to the axle. When you tighten the axle nut it clamps the inner races to the axle.
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I'm cofussed
I can see this for certain applications but not front wheel bearings. They slide right on at ambient temp.