Martin 20P hubless gears

[sanddrag]

I'm looking for Martin 20P gears (20* PA) like Small Parts sells (GSS part number prefix) but with NO hubs. Does Martin make these? I sure hope so because it is a pain milling or turning off the hubs. I've looked at their catalog but it is quite confusing to me. If they do make them, what is an example of a part number? I need the part number so I can get them from Motion Industries. I will need 30, 45, and 60 tooth ones. Thanks.

[Kevin Sevcik]

Martin doesn't appear to offer 20DP 20deg PA gears in hubless versions. I've checked Browning/Emerson-EPT and they don't either. I have a few possible options:
SDP-SI offers 20DP 20deg spur gear stock. The down side is that you'll have to bore it yourself and cut it to width. The up side is that you can make the gears whatever widt you want. I used this stuff to fix a problem with stripping gears in our tranny this year.
Rush Gears appears to have what you need. I can't get prices, so you'll have to call and get a quote. If all those gears they list aren't stock, then it's quite possible that it'll be cheaper to just buy the martin gear and machine it down.

[Cory]

Originally Posted by Kevin Sevcik

Rush Gears appears to have what you need. I can't get prices, so you'll have to call and get a quote. If all those gears they list aren't stock, then it's quite possible that it'll be cheaper to just buy the martin gear and machine it down.

I remember hearing that Rush Gears are extremely expensive.

I had to take the hubs off of like 12 gears and it only took me around an hour or so, so it isn't *that* big a deal.

Cory

[Clark Gilbert]

Originally Posted by Matt Reiland

Let me tell you was I ever wrong! We went to order an 80 tooth 20 pitch 20 pressure angle gear, needed it in about a week. Just to get a quote on the gear you needed to fill out all of the account paper work, took over a day to process, then the quote came back.

[gets up from floor after nearly having heart attack]

per gear the price was over $900, yes that is in hundreds, we thought they maybe screwed up the decimal place since they were under $100 every where else. Nope. I think that Rush shouldn't even be listed as a source for FIRST type robots. After a bit more searching we found that Motion Industries had them all in stock at way under $100 each and they are ready for pickup in only 2 days. I think it would be beneficial if we get together a white paper or similar listing valid sources for the different materials that teams use. It could save allot of teams allot of time.

http://www.chiefdelphi.com/forums/sh...ght=Rush+Gears