Sucker rod centralizers is downhole tool

Sucker rod centralizers is anti-pumping wells eccentric wear downhole tool for partial mill pumping wells, especially for rod and points or more partial grinding deviated directional wells and pumping, sucker rod and points hereinafter, with nylon rod centralizer body fit, preventing side wear better. By the coupling rod centralizer, centralizer sleeve, pup joints. Sucker rod centralizer having flexible and strong, it is in contact with the tubing wall, rod and tube may reduce friction, enhanced oil pumping life.