Ball Bearing – 55 mm, Kinney, Rotary Piston, Part# 054107

Rotary piston pumps work hard. Inside them, many moving parts spin and slide together. Bearings are the parts that let everything turn smoothly.

When a bearing starts to fail, you will know it. The pump might make a grinding or rumbling sound. It might feel rough when you turn it by hand. Or it might vibrate more than usual.

If you ignore these signs, the bearing can break apart. That can damage other parts inside your pump. Fixing that costs a lot more money and time.This ball bearing is made for Kinney rotary piston pumps. It measures exactly 55 mm in diameter. That is the right size for the pumps listed below.

This part fits two specific Kinney pump models :

• Kinney KT850C

• Kinney KT850D

These are big rotary piston pumps. They are often used in industrial settings like food packaging, vacuum forming, and central vacuum systems.