Does the outside diameter of the gear matter? If I have two 42t gears but each has a different OD. Are they different ratios?
Question: OD of a gear
Started by
Brinkley47
, Dec 01 2016 09:10 PM
4 replies to this topic
#1
Brinkley47
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#2
MSwiss
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Posted 01 December 2016 - 09:18 PM
No.
A motor with say , a 14T pinion, still has to rotate 3 times to get the spur to rotate 1 time.
Mike Swiss
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder
17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)
Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559
#3
swodem
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Posted 01 December 2016 - 09:53 PM
Different pitch.
Steve Meadows
#4
Brinkley47
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Posted 01 December 2016 - 09:57 PM
I was comparing same pitch, swodem.
Will Brinkley
willbrinkley@gmail.com
willbrinkley@gmail.com
#5
MSwiss
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Posted 01 December 2016 - 09:58 PM
Two gears, with the same teeth, advertised as the same pitch, will vary in diameter.
I have an old Koford 64p 37t, and it's about .003" or .004" bigger than a JK 64p 37t.
Edit: looking at a Camen/Cahoza 64p,37t it's about .005" bigger than the JK.
Mike Swiss
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder
17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)
Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559
