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P76 Hydraulic Pump and Motor Specification This unit has steel dowel pins which puts it at a higher PSI of 500 of pressure operation. They are designed to operate in heavy duty implement circuits in lift trucks, auto wreckers and small dump trucks. They are small but they are mighty. The charts below will show the performance of these units, what the assembly code means, shaft and port end covers and the drive shafts for these types of units.  If you other questions about these units, give us a call at 800-361-0068 sales@hydrostatic-transmission.com

Diaphragm Device Parameters Diaphragm is basically pistons operating inside a cylinder. It moves pressure from one sealed area to another. If you have hydraulic or pneumatic cylinders, the moving cylinder piston is sealed off by a sealing device like an oring, cup, vee packing or a something else like it.  The purpose of he diaphragm also is to limit the stroke and give off a frictionless seal. A lot o the diaphragms just move from one side to another, like pressure switches and solenoid valves. Diaphragms can be shock absorbers to help with pulsating systems. It can lessen high pressure...

U Cup Seals – General Information These u cup seals come in different sizes and shapes. They are mainly used to seal rams or rods.  With them being so small they are widely used more so than other sizes. When installing these seals with them being a single lip design, you will need to make certain adjustments for these kinds of seals. The most common series come in different kinds of reinforced fabric that will take on different pressures, environments, temperatures and the type of air or fluid with which the packing needs to operate. Uses for the seals are...

U Cup General Information Part ll  A u cup is more or less a floating seal that lets pressure to balance out on both lips, keeping it from rolling.  You can put in an internal lube in the u cups, so that when there is lack of lubrication or dry application. This will get to the seal and keep it lubricated. You will need to let your supplier know what kinds of application you will use the seal for, as there are different fabrics for different seals. Most surfaces for a seal will need to be 32 RMS max.  The...

Rod Wipers for Cylinders  Rod wipers are need to make sure the rod and cylinder are clean and don’t have debris on it, so it want fail to preform application. This is not a pressure sealing element, but it does try to stay away from abrasive effects that could lead to contaminates getting into the sealing and rod bearing elements. These rod wipers come with elastomer which is carboxilated nitrile that has higher abrasive resistance, extra tear strength and harder. The elastomer is also good at stopping fluids, high temps and compression set.  The rod wiper works best when it is made...