Bearing dust cap size?
Approx. about 1.575 inch.
If only you posted yesterday, and i saw your ad, i would have sent you one for a buck or two, and postage.
I was at the post office this morning, but i never know when i will have to be there again.
Only make the trip when i have too, for other things.
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I am dealing with the same issue! If you have any more I'd be happy to pay $5 and postage for it.
Thanks,
Denis