Thread: What is your favorite method for attaching gears to shafts?
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Unread 24-06-2002, 04:00
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#0047 (ChiefDelphi)
  
Join Date: May 2001
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Splined shaft is the only way :-)
Posted by Lloyd Burns at 05/03/2001 10:15 AM EST


Engineer on team #188, Woburn Robotics, from Woburn Collegiate and TorDistSchoolBrd, ScotiaBank. OntPwrGen, Enbridge.


In Reply to: What is your favorite method for attaching gears to shafts?
Posted by bill whitley on 04/30/2001 3:51 PM EST:



With the splines cut to involute shapes for better meshing,... but watch for the stress rise as you turn it down to go through mounting holes and bearings :-).

We used taper pins (pop) before keying became available. With a small machine shop, using a 1/8" end-mill, or a proper key-seat-cutter to make slot in the shaft, and a broached hole in the gear are ok for many applications we've had.

The main thing is - do not design gearing solely on a drafting program - gee it fits, so it must be goin' ta work ! Instead, figure out the load, and make sure the shaft and the gear will take the load, using the anticipated fixing method. It could even turn out that a set screw or loctite will work. Doing the math is the thing that the engineers do in private so you'll think they work magic !
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