Some of you have probably seen the 4:1 planetary gearsets available for the that can be connected to the Scooter motors. Tonight I decided to strip one down to bear components to see what they look like.
I'm not sure of the module size, at a guess it would be 0.8MOD, but I can't really say without verifying with a tooth gauge. _________________ https://www.halfdonethings.com/
Mon Mar 25, 2013 8:02 am
maddox
Joined: 21 Dec 2006
Posts: 786
Location: Belgium
Amount of teeth, inner diameter, and you're on a good way to know.
Also, mod .8 is nearby DP32. Is there any imperial dimension or is it all metric?
Mon Mar 25, 2013 10:08 am
Knightrous Site Admin
Joined: 15 Jun 2004
Posts: 8511
Location: NSW
Actually, I was wrong. The 20T sun gear has a ~16.40mm OD, the 28T planet gear has a ~21.90mm OD and the 76T ring gear has a ~55.40mm ID. The closest pitch I can match is a 0.75MOD, where a 20T is 16.50mm OD, but it doesn't match with a 28T which is 22.50mm OD. I can't find anything within ~0.1mm OD of these gears _________________ https://www.halfdonethings.com/
Mon Mar 25, 2013 12:47 pm
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
Probably another quality chinese metric imperial bastard child _________________ ( •_•)
It might be a bastard child, but surely there is some form of documentation on that bastardised standard and replacement parts can be purchased or made to match _________________ https://www.halfdonethings.com/
Mon Mar 25, 2013 2:43 pm
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