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oldcorollas
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
 
Re: Speedo drive gears Fri, 05 December 2003 04:18 Go to previous messageGo to previous message
CrUZsida wrote on Fri, 05 December 2003 15:04

A 5cm gear with 50 teeth has a smaller pitch than a 5cm gear with 10 teeth.
But a 25cm gear with 50 teeth has the same pitch as a 5cm gear with 10 teeth.


oki, say you have two worm drive gears, one with 50 teeth, and one with 10 teeth, both with the diameters you said.

now rotate them one revolution.

how many revolutions of the DRIVEN gear will occur? ie how many teeth will the driven gear turn by?

50 teeth and 10 teeth respectively.

pitch makes a difference for same diameter gears, but it is still the tooth count that is important.

if you have 2 5cm gears, but one is 1cm wide, and one is 10cm wide, you have different pitch, but same teeth count. the 10cm wide gear cannot have as large an angle between gears as the 1cm wide one, but the ratio of gear movement is still the same...

with a gearbox, if you give the gears a helical cut of sayy, 5 deg, it doesn't change the ratios just because there is an angle.. same goes for diff, which is exactly halfway between gearbox and speedo drive situation...

all i can say is (apart from the theory being correct) is that i have manually tested the 5/19, 6/20 and 6/22 ratios on the K boxes, and i know this to be true.
Cya, Stewart
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SubjectPosterDate
Read Message   Speedo drive gears NorbieFri, 05 December 2003 00:26
Read Message   Re: Speedo drive gears gianttomatoFri, 05 December 2003 02:03
Read Message   Re: Speedo drive gears ScorpionFri, 05 December 2003 02:34
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 02:36
Read Message   Re: Speedo drive gears oldcorollasFri, 05 December 2003 02:59
Read Message   Re: Speedo drive gears NorbieFri, 05 December 2003 03:05
Read Message   Re: Speedo drive gears oldcorollasFri, 05 December 2003 03:27
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 03:18
Read Message   Re: Speedo drive gears oldcorollasFri, 05 December 2003 03:38
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 03:44
Read Message   Re: Speedo drive gears gianttomatoFri, 05 December 2003 03:55
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 04:04
Read Message   Re: Speedo drive gears  oldcorollasFri, 05 December 2003 04:18
Read Message   Re: Speedo drive gears gianttomatoFri, 05 December 2003 04:38
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 05:48
Read Message   Re: Speedo drive gears NorbieFri, 05 December 2003 03:48
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 03:54
Read Message   Re: Speedo drive gears oldcorollasFri, 05 December 2003 04:04
Read Message   Re: Speedo drive gears BugmanFri, 05 December 2003 03:58
Read Message   Re: Speedo drive gears oldcorollasFri, 05 December 2003 05:04
Read Message   Re: Speedo drive gears NorbieFri, 05 December 2003 05:19
Read Message   Re: Speedo drive gears gianttomatoFri, 05 December 2003 05:31
Read Message   Re: Speedo drive gears NorbieFri, 05 December 2003 05:34
Read Message   Re: Speedo drive gears gianttomatoFri, 05 December 2003 05:46
Read Message   Re: Speedo drive gears NorbieFri, 05 December 2003 06:20
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 05:52
Read Message   Re: Speedo drive gears NorbieFri, 05 December 2003 06:27
Read Message   Re: Speedo drive gears CrUZsidaFri, 05 December 2003 06:32
Read Message   Re: Speedo drive gears supra1jzFri, 05 December 2003 08:35
Read Message   Re: Speedo drive gears JayemFri, 05 December 2003 23:27
Read Message   Re: Speedo drive gears jaseSat, 06 December 2003 11:30
Read Message   Re: Speedo drive gears justcallmefrankSat, 06 December 2003 11:39
Read Message   Re: Speedo drive gears NorbieSat, 06 December 2003 16:03
Read Message   Re: Speedo drive gears ShrakaSat, 06 December 2003 17:16
Read Message   Re: Speedo drive gears clubagreenieSat, 06 December 2003 22:51
Read Message   Re: Speedo drive gears clubagreenieSat, 06 December 2003 22:54
Read Message   Re: Speedo drive gears wraithFri, 19 December 2003 02:10
Read Message   Re: Speedo drive gears CrUZsidaFri, 19 December 2003 02:15
Read Message   Re: Speedo drive gears wraithFri, 19 December 2003 02:23
Read Message   Re: Speedo drive gears CrUZsidaFri, 19 December 2003 02:30
Read Message   Re: Speedo drive gears wraithFri, 19 December 2003 02:37
Read Message   Re: Speedo drive gears CrUZsidaFri, 19 December 2003 02:48
Read Message   Re: Speedo drive gears wraithFri, 19 December 2003 02:52
Read Message   Re: Speedo drive gears 82MKIIFri, 19 December 2003 12:17
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