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Showing results for tags 'wheel hub'.
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So what's the deal with wheel hubs, woodruff keys, hub depth, and set screws? I have a C-120 8-Speed Manual (61-12k802) I had to remove a tire to change out a torn tire valve, and the wheel and hub were stuck together. I figured it would be simpler to just loosen the hub and pull them both off. It was pretty easy to get the hub and wheel of together. I replace the valve, and put everything back together, and took it for a spin. I got a few hundred feet, and it stopped. The axle was spinning in the hub. I took the wheel and hub off this morning, and with a lot of swearing (it really helps a lot!), separated the hub from the wheel. Looking inside the hub, I can see a long groove worn in the hub about the length of the key. Luckily, I found another hub on an old transmission under a bench in my barn. Both were the same size. I put the new hub on the axle, and am wondering about the hub depth. Should the depth be set so that the screw tightens against the top of the key? If so, then the end of the axle is flush with the end of the hub, but the key is no longer in the keyway. The keyway doesn't appear to run the length of the hub. Should it? If I move the hub closer to the transmission, the axle is sticking out of the hub about two inches, and the screw tightens against the axle. This allows the key to be in the keyway at the end of the hub. I can see this arrangement working, but it doesn't look copaceitc. I can't check the other hub without pulling off the wheel weight, so I figured I would check with the braintrust there first. Anyone know the correct assemble?? Also, do hubs wear out so that the keyway is lost? James
