Re: What is a Shaft Fillet Radius in a tapered bearing?

Posted by docmirror on May 02, 2018 at 18:08:56 from (107.213.165.255):

In Reply to: What is a Shaft Fillet Radius in a tapered bearing? posted by ebonfyre on May 02, 2018 at 11:24:04:

Note the shaft fillet Radius on your axle is 3.5mm(0.14 in), and you want to put it on a bearing inner race with a smaller fillet radius of 1.3mm(0.05 in). The shaft will ride hard on the smaller radius and may crack the inner race when the axle gland nut is tightened.

This would mean, you are out of luck. HOWEVER; You can take the bearing, and the axle to any competent machinist and ask them to match the fillet, and they will grind the axle to match the fillet radius of the bearing race. (or grind the bearing fillet to match axle)

Alternately, you can hack-job it and just use a thin washer/shim of 70.637(2.781 in) on the face of the axle flange, and that will obviate the fillet radius. By doing this, you will reduce the strength of the axle at that contact point, because you are no longer matching the fillet radii of the bearing to the axle. It will be like having no fillet fit which reduces the chances for breakage. It'll work, but I would not put a whole ton of torque on the axle gland nut.

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