Re: Hey BobM - belt drives

Posted by Bob M on January 10, 2003 at 13:09:46 from (165.170.128.68):

In Reply to: Hey BobM - belt drives posted by Steven@nd on January 10, 2003 at 11:57:13:

Hey Steven - A quick calculation in my old Browning catalog says for 5.8" driver and 5" driven sheaves (giving ~2,000 RPM at the pump from a 1,750 crank speed), a B-section Gripbelt is good for about 6.5 HP. This should sufficient for your live pump purposes. And it will cost a LOT less than the timing belt option! (Keep in mind however I spent about 30 seconds on this calculation. It's been a while since I've done power transmission design work. My calculation may only be worth what you paid for it!)

The one downside of the V-belt drive will be it's sensitivity to water and oil. Just a trace of either on the belt will render the pump drive pretty much useless under load. Unless you have a good belt shield it could be a problem if you plan to use the tractor in wet weather or for snow removal. Also if your H is a "leaker"!

Another consideration: Make sure the pump you specify can safely handle the radial load imposed by the belt drive. Many (most?) hydraulic pumps are designed for coupling drive - the bearings cannot handle any significant side load on the input shaft.

Hope this helps!! ...Bob M

Follow Ups:

• Re: Re: Hey BobM - belt drives Steven@nd 17:09:22 01/10/03 (0)

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