533 Rear axle broken thread ...age or materials?

Posted by Peter Packard On 2018/7/28 19:23:45

Hello all, Recently during a drive to a Display day, I noticed a burning smell from the LHR wheel. I pulled over and jacked the wheel up, grasped it firmly to check for looseness, etc. The wire wheel and brake drum very gently came off the axle in my hands. Very lucky not to have been involved in a nasty traffic incident. I was wondering if the forum has some stress engineers who might offer some advice on why this over 90 year old part failed. I repacked the wheel bearings and replaced the inner seal and brake linings in 1974. Have attached a few snaps of the item. I have no idea why the pics rotated on posting. They unrotate when you click on them. beats me.

Peter Toet

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