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Old 06-26-2009, 10:55 PM   #1
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Default Pinion and Pulley?

is there a pinion that is also a pulley?
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Old 06-26-2009, 11:08 PM   #2
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The pinion is the gear that goes on the end of the motor.
Pulleys have belts around them.
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Old 06-27-2009, 02:05 AM   #3
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yup Pinion is the gear on the end of the motor and the pulley is on the vehicle which holds the belts.
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Old 06-27-2009, 12:00 PM   #4
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Geezzz people, did he ask what the difference was???

I think there were some pinion/pulleys but I don't know who made them. You could try a layshaft pulley from a HB's cyclone (16t or18t), they have a setscrew like a pinion but they fit a larger shaft so you would have to fit a sleeve over the motor's shaft to fit inside the pulley to center it.
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Old 06-27-2009, 06:37 PM   #5
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Quote:
Originally Posted by Scott B View Post
Geezzz people, did he ask what the difference was???

I think there were some pinion/pulleys but I don't know who made them. You could try a layshaft pulley from a HB's cyclone (16t or18t), they have a setscrew like a pinion but they fit a larger shaft so you would have to fit a sleeve over the motor's shaft to fit inside the pulley to center it.
Ok now you've got me thinking about it. There was a company years ago that made belt drive conversions for the pinion/spur power transfer. I think the company was hyperdrive. Any way the problem was that you had to have a reverse rotation motor, which was a bigger deal in the days of the brushed motors.
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Old 07-06-2009, 07:45 PM   #6
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I found one, well its not made for it
Pinion and Pulley?-0705091413.jpg
It is a HB Cyclone Middle Belt thingy
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Old 07-06-2009, 07:51 PM   #7
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Your right it's not made for it, that's why I said you need to find a sleeve that will fit over the motor's shaft and fit inside the pulley to center it.
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Old 07-06-2009, 08:05 PM   #8
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yeah, but the pulley has two screws so it goes all the way down to the shaft
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Old 07-06-2009, 08:09 PM   #9
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Snoopy is right. It was Hyperdrive that made the belt system for pancars and buggys. I still have a whole set of them and they work great. You just had to get the right ratios together with pully, spur, and belt size. They were super quiet and yes you had to use a reverse rotation motor since everything turned in the same direction. But they were very cool in the stuff factor.
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Old 07-06-2009, 08:14 PM   #10
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do you have any to spare?
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Old 07-12-2009, 12:47 PM   #11
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Quote:
Originally Posted by Scott B View Post
Your right it's not made for it, that's why I said you need to find a sleeve that will fit over the motor's shaft and fit inside the pulley to center it.
what kind of sleeve do you recommend using?
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Old 07-12-2009, 01:19 PM   #12
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I found some pullys for 1/8" shafts. I am not sure if 0.080" pitch is the same as 2mm pitch found on most r/c cars.

http://www.robotmarketplace.com/prod...leys_main.html
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Old 07-12-2009, 02:21 PM   #13
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Quote:
Originally Posted by trailranger View Post
I found some pullys for 1/8" shafts. I am not sure if 0.080" pitch is the same as 2mm pitch found on most r/c cars.

http://www.robotmarketplace.com/prod...leys_main.html
2mm = .07874.... I'd say extremely close for a gear pitch.
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Old 07-12-2009, 03:37 PM   #14
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When I was converting my mill to cnc, I bought belts, and pulleys from this site,, If I remember correctly they even have a calculator for figuring belt length according to your pulley size, and center to center of the pulleys.
https://sdp-si.com/eStore/
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Old 07-12-2009, 03:40 PM   #15
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Hmm, site seems to be whacked at the moment, But it would be timing belts, and timing pulleys you're looking for. you might try McMaster-Carr, also
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