Gear Box VS Belt Drive

Well what I got from Flippers post is there is a gear-reduction-pump, GR spec, certainly not popular as I don't think anyone's ever seen one. Somewhere under the Karcher umbrella at least and for some reason it is spec-ed to run faster than a belt.
 
greg/sd said:
Jerry it couldn't have been said better if it was a direct copy and paste from the spec sheet. bore and stroke times rpm equals rated flow, flow through a given orifice gives pressure.
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It's crazy how much difference a millimeter makes in the flow.
 
Sirocco Jerry said:
Flipper.. What are you thinking !??
IF you have an engine driven pump in your product line that runs at 700rpm belt driven..
that's a 5:1 ratio from a 3600rpm motor.. which means.. with a 3.2" pulley on the motor, the pump will have a 16" diameter..
Really ?? can you post a picture of that ?
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 Gasoline engine rpm is set around 3200rpm. A direct drive pump is designed to turn at 3400 rpm for gas engines. A belt driven pump is designed to turn at various rpm in a range of 650 to 3400rpm depending on design requirements.

..And your 2300rpm direct drive.. what engine are you running at 2300rpm ?? can you post that ??
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Our engines ran on average 3200 rpm most direct drivepumps operate at 3400 rpm. A gear reducing typically has a 2.1 to 1reduction ratio. An engine set at 3600 rpm will turn the pump at 1750 rpm. If you have a standard pump that is designed to operate at 1750 rpm and has thesame shaft size as the gear reduction then you can connect this pump to a gearreduction. Gear reductions will come with pump shaft sizes in either 24mm or30mm and the other side for the engine will be either 1” or 1 1/8”. Oh, and I don't know why the text came out red.
 
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