Increaing RPM (Gearing or any other way)
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Posted by: kipling84 ®

03/20/2007, 19:27:44

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Hello to all,

I have a situation where I need to increase the RPM of a gear by at least somewhere in the range of 10:1 at the minimum. I prefer as large as possible.

I have some room but not a lot. I can achieve about 6:1 by spur gear idler train, but thats not enough.
I know wormsets are used to REDUCE RPM by significant ratios, but are not used to increase because of large temperatures...

Is it possible to use a wormset to increase if the RPM if operation time is less than 2 minutes. (say every 30 minutes)??

Or what other options do I have? Please help me out.

Thanks,
Josh








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Re: Increaing RPM (Gearing or any other way)
Re: Increaing RPM (Gearing or any other way) -- kipling84 Post Reply Top of thread Forum
Posted by: randykimball ®
Barney
03/21/2007, 14:09:17

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Worm gears aren't commonly used to increase RPM, they are best used to gain leverage in a decrease situation.

Generally, cog belts or helical gears are well suited for increasing RPM. If you are not talking about a high torque configuration, you may be able to purchase cog wheels and a belt out of one of the large hardware catalog houses. Be sure to at least have sides containing the belt from slipping off the edge on the smaller wheel, if not on both. Simply pick a set of cog wheels with one having ten times (or more) diameter change. This system is often used in some high speed power tools, such as planers and jointers.

Remember, if you increase the RPM by 10 fold, you will need 10 times + friction losses power at the driving motor to handle the work at the increased RPM shaft's torque load. You are going to be trading power for RPM with some losses.





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Modified by randykimball at Wed, Mar 21, 2007, 14:17:03


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