What is a pump thrust bearing?

What is a pump thrust bearing?

Thrust bearings are used for axial positioning of the compressor rotor supporting thrust loads that arise from gas forces within the compressor case. From: Compression Machinery for Oil and Gas, 2019.

What is the purpose of balancing line in boiler feed pump?

Balance line is used to balance the centrifugal pump shaft from axial thrust. Due to the axial thrust, pump bearings and internals will get damaged. To nullify this effect, a tapping from discharge end (between balancing & counter balancing disc) is connected to a balancing drum.

Which pump is used for boiler feed water?

There are two types of pumps that are most often used for boiler feed water applications: stamped stainless steel vertical multistage inline pumps and multistage horizontal ring section pumps.

What are the advantages of thrust bearing?

Thrust bearings allow smooth rotation under high thrust loads at low and medium speeds. Whether the rolling element is a ball, needle or a roller, they are designed for pure thrust loads, and can handle little or no radial load.

Where are thrust bearing used?

Thrust bearings are commonly used in automotive, marine, and aerospace applications. They are also used in the main and tail rotor blade grips of RC (radio controlled) helicopters.

What is boiler feed pump turbine?

In general, the boiler feed pump turbine uses both steam from the boiler and the main turbine to drive the mechanical shaft connected to the boiler feed pump. This arrangement has proven highly successful in efficiently applying the steam’s thermal energy throughout the plant.

What is minimum flow of pump?

Minimum flow is a subject that many pump professionals will give a lot of time and consideration to. The term minimum flow generally meant the lowest continuous flow at which the pump was permitted to operate. These values did not take into account duration, vibration level or other factors.

What is duplex feed pump?

A duplex steam pump has two sets of steam and water cylinders. They are not physically connected but the steam valves on the first pump are operated by the movement of the second pump’s piston rod, and vice versa.

What are the benefits of bearings?


  • The bearing uses grease with higher dripping point (195 degree)
  • Large operating range temperature ( -40 ~ 180 degree)
  • Better sealing shield to prevent leaking of lubricant and avoid foreign particles.
  • Easy bearing replacement.
  • Increase motor performance (less motor friction)