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How It Is Important To Have A Balanced Motor Layout  When using a hydraulic motor that has two different pressures to deal with. First is a system working pressure at the inlet, then tank pressure at the outlet. This will give you a side loading shaft that might be sever at high system pressure. If you don’t want that to happen then the shaft side loading on the inner contour of the ring needs to be changed from circular to cam shaped. If you do this configuration the two pressures quadrants oppose each other and the energies will keep the...

P125 Series Oil Hydraulic Pump – Bearing Carriers This tandem pump assy. goes up to 86 GPM may be pushed along to the second section thru the bearing carrier in codes an A and U only. Each of the pump sections are started up by the main inlet port in the front gear housing.  The total velocity thru the inlet must not go past 8-10fps in these cases of codes A and U bearing carriers need to be used in the place of codes C and D.   Codes tandem pump use A, C, D or U tandem motors use...

Vickers Hydraulic Units – Pressure Feeds The inner vane workmanship gives a way of controlling the outward thrust of the vane countering the ring situates the tip loads within an acceptable limits. In the inner vane cartridge, a full system pressure is repeatedly put on only to the area between the vane and insert. The area is little and the thrust is comparably light. Amidst vane travel thru pressure areas, full system pressure is put up against the bottom area of the out vane. The valving of pressure to and from the bottom area of the vane is thru holes...

WM Series Motors These types of motors work best with winches and other operations that have to have alot of torque to do the job.  WM motors are assisted by a computer program that helps with displacement, tooth strength and power operations. On a WM76 the displacement is 4.1 cir per inch of gear width and the WM51 displaces at 2.55 cir. When instability occurs in displacement on motors when the torque is rotated is extremely low. The WM51 can be at 12% and the WM76 is 11%. Usually gears motors can average 19% either way on the displacement. Starting...

These units are reasonably priced, little winch motors that have a built in two speed valving that can go from low speed/high torque or in reverse high speed/low torque to give gearing on the fly a smoother shift. These units are great for loads that are linked to fast line speed, like winching. WM30 motors are dependable roller bearing gear motors have a rating of 2500/3000 PSI and give a beginning torque up to 83% of conjectural in the low speed position. Winch applications carry a counterbalance valve that is usually is in the circuit and could be mounted to...