[kennybobby]

You might need to make a flange plate for the puller jaws to grab. This would be a 2-piece collar clamp that, ideally, would be machined on the inner diameter to match the two bevels and the "flat" near the end of the gear shaft.

Here is a ascii drawing of the end of the gear shaft, the collar clamps fit over this end and the two halves are bolted together to make a solid flange surface to grab for the pull.



/‾\_____

>----------centerline

\_/‾‾‾‾‾

 

[kennybobby]

jubilee clip = worm-drive screw hose clamp for folks on this island

Does that gear shaft have a step in the internal diameter? If so then a blind internal bearing puller could be used to grab it and make the pull with a slide hammer (gently). Shouldn't take much to get it off since it's just a sliding spline fit.

But the motor shaft end does have a countersink such that a screw puller could be used.

 

[kennybobby]

After a second look at this problem, I think the main clamping force holding the primary shaft on is the exposed bearing pressed on the shaft and in the motor housing. The splines probably just float or have a very light press fit. So, a slide hammer or a clamp that presses on the housing, like brian says, would be the way to pull it off.

The split clamp jacking screw, referred to earlier, pushing on the end of the motor shaft through the hollow(I'm guessing) primary shaft would put unnecessary force on the motor shaft bearings. So don't try it!

How do you figure--did you not watch the video of the assembly?

The only way to not stress the motor bearings would be to press on the motor shaft and pull on the gear shaft--to slide the loose fit bearing out of the housing and the loose spline fit off the end of the motor shaft without putting any reaction load on the motor bearings.

If you press against the housing then the load reaction path directly loads up the motor bearings at the opposite end.

The shock of a slide hammer puts brinnel marks into the bearing races.

 

[kennybobby]

Yes that's the one, it was in the link posted by Brian_

What do you think, shouldn't that shaft just easily pull free once the bearing retainer plate is out of the way? The shaft is hollow so easy enough to access the end of the motor shaft with the countersink if a puller is needed.

It appears that the OP gear has hit the retainer and knocked the corner edges off the end that faces the bearing, or is there a slight chamfer ground on the gear ends? Something in there looked like some jagged edges.