Source of 1/2 wide 20 DP, 14.5 PA gears

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Looking for a source of gears that are

- 1/2 wide (so far only found 3/8")
- 20 diametral pitch
- 14.5 deg pressure angle

as per gears used in AM Super Shifter transmissions

[MattC9]

http://wcproducts.net/gears-20-dp/
Should be what you are looking for but, they are .400 and .600 in with.

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Wasn't aware of that source. Thanks. I better go measure my gear :)

[Tristan Lall]

SDP/SI (Stock Drive Products/Sterling Instrument) has gear stock (https://sdp-si.com/eStore/PartDetail.asp?Opener=Group&PartID=1006&GroupID=592) from which you could turn any custom face width. (Other diameters available too.) Of course, their online ordering system continues to be horribly broken (and irreconcilable with their phone/mail ordering system), and their shipping to Canada is typically UPS with all of the associated brokerage fee headaches.

Linn Gear also sells 20 pitch, 14.5° pressure angle gears (http://www.linngear.com/products/highlights/infosheets/g-1.html), but they apparently don't have an online catalogue.

[de_]

[QUOTE=(Stock Drive Products/Sterling Instrument) has gear stock (https://sdp-si.com/eStore/PartDetail.asp?Opener=Group&PartID=1006&GroupID=592) [/QUOTE]

Thanks for info. Unfortunately SDP gear stock has huge holes in selection between 30 and 40 (only have 30, 35 & 40). My spreadsheet says we need in the range of 36,37 & 38. I've asked AM where they get theirs made.

Will definitely try Linn!

[Tristan Lall]

Martin Gear and Sprocket has them (http://www.martinsprocket.com/2001/SecG.pdf#G22) too (page G-35), in 30, 32, 35, 36 & 40 teeth. (Edit: No, they're 20° pressure angle.) They have hubs, but that can be dealt with.

I believe Canadian Bearings (and probably BDI) can bring in Martin gears locally.