• If possible, try and press them in rather than hammer them in. You want them to go in straight, and hammering tends to not allow that.
    Try knocking together a basic press using the old bearing, some washers and the quick release

  • old bearing, some washers and the quick release

    Ooh, not a bad shout. Will give that a whirl if I can work out how to negotiate the axle.

  • if I can work out how to negotiate the axle

    This is what an over axle bearing press is for. Or, you can be careful and use an appropriate sized socket

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