Lowes, Home Depot, Ace, True Value, Tractor Supply.
Then there is Grainger and McMaster.
you ask for a hand truck wheel bearing replacement. Make sure the parts match, an inner/outer diameter rule is a useful tool for this.
There are how to pictures on the mfgr website.
If you can wait, and email them, I am sure they will send you a replacement or guide you to local parts. Tell them why you need it, if its a product defect give them a chance to make it right. Ask with a smile, it goes a long way.
Good luck, Kaps
Kayak Deck Gear Bags
Pull-Up Strap Handle Kit
Rescue / Throw Bags
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