Sun Gear Question

[artdutra04]

Originally Posted by Garrett.d.w

On the back of these motors, the drive shaft is exposed just a little bit. This shaft runs all the way through the motor and is the same one that the gear will be pressed to. The reason why its this way is so that you can use an arbor press to press the gear on. As mentioned before, heating it helps, but after doing six of these today (no joke http://www.chiefdelphi.com/forums/sh...66#post1118966) I found that it is easier to do it without the torch and use the free hand to line everything up.
It is also a good idea to cut a piece of sheet metal (~50 thou thickness works well) to use as a spacer while pressing the gear on.

If you are a team that doesn't have an arbor press, you can press pinions on using a vise if you are careful.

[Lil' Lavery]

Originally Posted by artdutra04

If you are a team that doesn't have an arbor press, you can press pinions on using a vise if you are careful.

This is exactly what we did. With the same gear and same motor the OP was referring to. Works like a charm if you're careful. I'd suggest using a larger vise that's hard-mounted. We used the corner of the vise to ensure that only the shaft was in contact with the vise, and not motor body, spade connectors, or bearing.

[jwfoss]

Originally Posted by artdutra04

If you are a team that doesn't have an arbor press, you can press pinions on using a vise if you are careful.

FRC2168 did this last night, we used the vice on the mill down in the shop, as we know that the sides should be parallel and it is not going to move while we are working.