seating rear wheel bearings

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bws2
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seating rear wheel bearings

Post by bws2 »

I've read that you tap on a large socket in order to seat rear wheel bearings.

If the OD of the bearings is 42mm, would I use a 42mm socket, or would it be too big?

Since I don't have a socket that size, I can't do my own measuring.

Also, is the socket method advisable, or is there a better/safer way to do this?
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Molly's 70
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Re: seating rear wheel bearings

Post by Molly's 70 »

The socket should only touch the outside diameter of the bearing, but still fit in the wheel hub casting. I listen for a change in sound while tapping. That's how know it's seated all the way in. Put the bearing in the freezer for a several hours to "shrink" it.

I prefer a hydraulic press, but not many home owners have one.
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KDXGarage
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Re: seating rear wheel bearings

Post by KDXGarage »

Also, if you don't want to go with a torch, etc., put some boiling hot water onto the bearing pocket to slightly expand it.
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Re: seating rear wheel bearings

Post by o/d »

I like to use threaded rod instead of a hammer for most bearings.
Less chance of damaging bearing.
If I cannot find the ideal size socket to use for pressing it in I try to find the proper size washer or whatever I have on hand.
Sometimes supported by a socket of a slightly smaller diameter.
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SS109
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Re: seating rear wheel bearings

Post by SS109 »

The old heat and freeze technique used for main bearings works here as well. Well, it has for me. Sometimes I might just need to lightly tap them in to position.
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