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Question:

Best way to fix an aluminium tube inside a ball bearing?

I have an aluminium tube which needs to sit within a ball bearing at either end to create a free-running rollerHowever, despite the bearing inner and tube having the same diameters, due to manufacturing tolerances it is not a tight fitThe tube can slip within the inner ring of the bearing, but I need it to hold tight otherwise the bearings are a bit pointless.Would you recommend it's best to try and expand the tube a fraction by some method to get a good interference fit (heating, ramming a larger tube inside etc.), or just use a strong metal resin adhesive?Thanks.

Answer:

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No, I've never had an issueAlthough if you just used a different treat, like natural choice dog biscuits, then I'm sure you wouldn't have a problemThat is strange though.Hope you figure it out:)
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Get a bearing with a locking collarThey have a couple of allen screws to tighten onto shaft.

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