Steel Flange Bushings: A Complete Guide to Stainless Steel and PTFE Flanged Bushes

Steel-backed PTFE lined metric flanges are typically constructed from a composite material that comprises a robust steel backing, a porous bronze sinter layer, and a PTFE lining. The integration of these three components creates a strong and durable structure that is highly effective for various applications. This unique combination ensures that the flanges exhibit self-lubricating properties, which in turn leads to a significant reduction in wear and tear during operation. As a result, the longevity of the equipment is notably extended, enhancing its overall service life. Moreover, the pairing of the steel backing with the PTFE lining and porous bronze sinter not only optimizes performance but also improves resistance to friction and heat. This innovative design is particularly advantageous in environments where durability and reliability are critical, ultimately contributing to more efficient and sustained operation of the machinery involved.

Unlike roller bearings that function via a rolling action, flange bushings operate through a sliding action. These are commonly called ‘sliding bearings’ or ‘dry bearings’ because they guide, constrain, or reduce friction in linear or rotary applications while supporting a load. Consequently, they are widely used in various industries, including vending machines, printing, timber, and machine tools.

Self-lubricating flange bushings are designed to deliver outstanding wear resistance even in the most demanding and extreme operating conditions. This durability effectively eliminates the necessity for frequent maintenance, allowing for greater efficiency in various applications. Additionally, these bushings exhibit remarkable resistance to dirt and contaminants, which contributes to their longevity and operational reliability. The low friction coefficient they possess further enhances their overall service life, minimizing wear and tear while ensuring smooth functionality in mechanical systems.

Flange bushing installation dimensions and tolerances depend on their material and wall thickness, with thicker walls necessitating larger tolerances. Consequently, various tolerance grades apply to metal bushings, allowing them to function within specified temperature and humidity ranges. Order quickly online and receive a quote using our parts configurator.