live axle slides whats normal method to stop it?

[rubberducky]

Quick question, We have a live rear axle on our kart and have just mounted up the bearings, how do ppl stop the axle sliding thru the bearings etc once its all mounted up? pics etc welcome

 

[modelengineer]

On my axle I have keyways on either side of the bearings. The keys are ground to the right length so that the axle can't possibly move. The keysteel butts up against the bearings, and at the other end against the end of the keyway.
The brake disc and sprocket carriers go on top of the keyways to stop them coming out.

You could get spacers made that slide over your axle and press against the bearings and wheels/sprocket.

 

[rubberducky]

Hmm that is a good point, something I hadn't thought of. Thanks.
My thinking was on the outside of each bearing having a bolt through the axle that butted up against the bearings.

 

[Kevin Noah]

Racing bearings have a collar that slips over and there are 2 set screws to tighten down to your axle. Modelengineer is right too.

 

[rubberducky]

Racing bearings have a collar that slips over and there are 2 set screws to tighten down to your axle. Modelengineer is right too.

Yea our bearings have a collar on them with two allan key scresw that tighten onto the axle. I'm just assuming that even if they are really tight it could slip a little putting the chain out ever so slightly.

 

[Kevin Noah]

Yeah maybe if you hit the rear sideways on something but with the g's on my birel in corners I've never had one slide.

 

[rubberducky]

Well maybe I can do the key method with disc brake and just leave the other side that and the bearing screws should be enough to hold it. cheers for replys guys.

 

[modelengineer]

I wouldn't trust 4 small set screws to absorb all the force on the rear axle, unless you drill small holes for the screws to key into.

 

[Kenny_McCormic]

Between the wheels and the bearing you put pipe over the axle.

 

[jr dragster T]

All last summer my axle and hubs where help on by 1, 1/4" setscrew and had no probelems. But this time I'm drilling a hole in the end of my axle and tapping it and I bought some 1" ID mechanical tubing to slide over my axle.

 

[ZnsaneRyder]

Between the wheels and the bearing you put pipe over the axle.

I agree. A piece of PVC or even metal pipe can be cut into several cheap spacers.

 

[rubberducky]

hey pvc between wheel hubs and bearings isn't a bad idea ya know. cheers guys will give that a go. might rattle around a bit tho and sound silly but i guess if its lubed up and semi-snug souldnt be too bad.