Don't do that, but if you can half seat an old bearing back in a bit straight, you can use the axle as a centre guide for the new one on the other side, then swap and have an accurate centre guide for the other new one.
@snottyotter started
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Don't do that, but if you can half seat an old bearing back in a bit straight, you can use the axle as a centre guide for the new one on the other side, then swap and have an accurate centre guide for the other new one.