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EXTREME FAT TIRE BICYCLE

Step 5Rear swingarm, axle and hub

Rear swingarm, axle and hub
The rear wheel used a live axle, that is the axle was secured to the hub and turned the wheel.

The axle is a 1" solid steel. It has threaded ends and I bought 1" lock nuts for it. It has a keyway to keep the hub fixed from rotation around the axle. I think I used 16" length.
1" Live Axle with 1/4" Keyway. Lengths include 14", 16", 18", 36", 40", 45" or custom size.
Part #4000**, SKU Number:4000**
1" Axle Nut
Part #400050, SKU Number:400050

The axles rotate in a set of 1" bearings supported on steel bearing hangers
1" Bearing Kit (2 hole)
Kit Includes:
  • (2) 1" Bearing Hangers (have very minor surface rust)
  • (2) 1" Axle Bearings
  • (2 pair) 1" 2 hole Bearing Flangettes
  • Nuts & Bolts
Part #400405, SKU Number:400405

The swingarm was slotted to accept the bearing hangers (steel plates) which were then welded in place. they also could have bee just welded to the tube, but this swingarm had such thick tubing and my welding skills were so bad, I thought this was safer for this project. My frame layout and geometry (on the cardboard) was based on the slotting method, otherwise I would have had to shift something somewhere about 3/4".

The rear hub is a (Wheel Hub 1" Bore Wheel Hub with 1" Bore 1/4" keyway, 1/2" 4 bolt pattern on a 4" bolt hole circle SKU Number:260050

Also shown in picture is the sprocket hub I later cut down to size and mounted a chainring to in order to turn the rear axle.
Unihub - Sprocket Hub
1" Bore with 1/4" keyway, 6 Bolt Holes on a 5 1/4" Bolt Hole Circle
Part #AZ2556, SKU Number:AZ2556
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Author:marple200