Kandi 150FS rear axle bearing help
 

I'm in the process of replacing the rear axle and bearings on my son's Kandi. I was able to get the old bearings and housing removed from the old axle using a large modified 3-jaw puller. But in test fitting the new bearings on the new axle, they are definitely tight. Almost a press fit. I can slide it on about 1/8 of an inch before it stops and it takes some effort to remove it. What's the trick to getting these bearings on without destroying them or the axle? I've been debating on going over the axle with some 2000 grit paper and emory cloth to reduce the diameter a few thousands, but without a lathe, I'm a little worried it won't be round when I'm done.

Well, I figured it out. I ended up making a bearing press tool. In case anyone else needs help with this, here's how I made it.

The threads on the axle are a M16x1.5. You'll need the following items:

1. Axle nut
2. 5" length of M16x1.5 threaded rod (purchased from belmetric.com)
3. M16x1.5 female-female adapter (Purchased from Amazon)
4. 1-1/4" x 9" steel pipe w/threads
5. Pipe end cap (drill a hole in the center of the cap large enough for the threaded rod to fit through)
6. 1-1/4" washer
https://i.imgur.com/HV9F38E.jpg?2

Next, thread the adapter onto the axle and thread the rod into the other end of the adapter. Slide the washer onto the axle, up against the bearing.
https://i.imgur.com/tmlAy71.jpg?1

Thread the end cap onto the pipe, slide over the axle and the threaded rod through the hole in the end cap. Now screw on the axle nut and begin to tighten. Eventually the bearing will bottom out against the axle shoulder.
https://i.imgur.com/oKET3Rq.jpg?1

Nice ! :cheers:

That great thinking.

Very good idea to press the axle bearings. Thanks for sharing.