Hydraulic pump

[4570Man]

Either would work, but direct drive via Lovejoy couplings would be my preferred method.

 

[2458n]

Two sprockets face to face with a double chain hooking the two halves together. I am running one like this now and it has lasted many years.

 

[LD1]

I agree with a Lovejoy. It's how 99% of hydraulics are done in industry.

I saild belt and pulley assuming you needed to tailor the sizes/ratio to get a certain speed, which cannot be done with a chain coupling or Lovejoy

 

[muddstopper]

Just a tibit of info, a lot of gear pumps can be made reverseable, but this is usually in the cheaper sizes. Bigger pumps like yours might be reverseable by simply inverting some of the internal parts, and some of them cant. Some can only be reversed by buying additional parts. If you have to start buying parts to change the rotation of the pump, it might be cheaper to buy a different pump. For that reason, it is best to make sure which direction your pump needs to turn and if the rotation can or can not be changed before you design your whole hydraulic system around a pump you may or maynot be able to use.

 

[Lea]

I agree a direct coupling face to face is the best, however the power shaft turns CCW and I think the pump turns CCW also so that won't work, and also the power shaft off of that motor will only turn half speed of the engine, so if I need to turn that pump at 1500rpm then my engine would have to turn 3000 rpm. That is why I'm thinking pulleys or sprocket, to get the proper rotation and I can change size of pulleys or sprockets to get in the proper range of rpm on pump, I can adjust engine rpm to get ideal rpm

 

[LD1]

Belts and pullies are much better suited for high speed than roller chain and sprockets.