DU/SF-1S Stainless Steel-Backed Self-Lubricating Bushing (Red PTFE)
DU/SF-1S Stainless Steel-Backed Self-Lubricating Bushing (Red PTFE)

DU/SF-1S Stainless Steel-Backed Self-Lubricating Bushing (Red PTFE)

The DU/SF-1S is a highly corrosion-resistant and wear-resistant bearing formed by spray-coating a stainless steel base with PTFE and roll-forming the material into its final shape. Specifically designed for strong acid, strong alkali, and light-to-medium load low-speed applications, it demonstrates significantly superior wear resistance compared to monolithic PTFE bearings and graphite bearings.

This product is widely used in chemical acid-base flow meters, pumps, valves, and sliding components requiring corrosion and wear resistance in marine industries.

Technical Parameters

Max. Load Capacity: 100 N/mm²

Coefficient of Friction, μ: 0.03 – 0.18

Operating Temperature Range: -195 °C to +280 °C

Max. Allowable PV Value (Dry): 3.0 N/mm²·m/s

Max. Sliding Speed: 2.5 m/s

Max. Allowable PV Value (Lubricated): 40 N/mm²·m/s

DU/SF-1S Stainless Steel-Backed Self-Lubricating Bushing (Red PTFE)

Metallographic Analysis

  1. Mixture of PTFE and oleophilic fibers

  2. Spherical bronze powder

  3. Stainless steel backing

Scroll to Top

Get Your Free Quote

We’ll contact you shortly.