The function of pump shafts

Pump shafts are generally used in feed pumps. Depending on their design, feed pumps can pump various liquid media under pressure. Because of the different requirements for leakproofness, these pumps require precision-made, highly accurate gearing that is predominantly hardened and has been ground with maximum precision. Pump shafts are a central component of feed pumps (also called gear pumps) and are connected to the motor shaft via the inlet and sealing shafts. They transmit the rotary motion from the motor to the pump gearing.

The feed pump is made up of a drive shaft and a rotating pump shaft. The rotation of these shafts generates pressure in the pump for pumping the liquid media. These media can be low-viscosity liquids like fuels, or high-viscosity liquids like those used in the chemical industry.
The medium and the amount of medium to be pumped ultimately determine the size and material of the pump shafts in the pump.
The pump’s performance requirements also determine a gear shaft’s material and gearing. For many applications, pump shafts undergo high stress due to heavy loads, high pressure and high speeds, and the material is subject to extreme loads. This is why precise specifications and the highest-quality pump components are required in manufacturing. The composition of the liquid to be pumped determines the metallurgic factors that apply when manufacturing the pump shafts.

Other bases for assessing pump shafts include reliable shaft deflections, maximum torque to be transmitted, and possible lateral and torsional vibrations.

Parameter Name	Parameter Value
Material	medium
Type	precision drive
Product applications	gear pump shaft