With high-quality Thrust Washers, Flange Bearings, Ball Bearing, reasonable prices and good after-sales service, we have won the praise of many friends. We meet the needs of global customers with our strong supply capacity and stable product quality. After the baptism of the market and the needs of enterprise restructuring and development, we have now become one of the leaders in the industry. We have been winning the market with service, building brands by quality, pursuing excellence with technology, providing one-stop service.
Our back-up rings can be made from pure PTFE or filled other materials to meet different working conditions.
Product parameter
Material type | Color | Density (g/cm³) | Linear thermal expansion factor | Tensile Strength | Elongation | Compressive strength | Bending strength | Impact strength without Notch | Friction and wear properties (dry friction) | |||
Coefficient of friction | Wear scar width | Wear loss | ||||||||||
DF-101 | White | 2.1-2.2 | 10-12 | 20-30 | ＞250 | 12 | 11-14 | 16 | ＜0.1 | ≥20 | ≥254 | |
Product application
In a sealing application, backup rings provide added extrusion resistance and prevent damage to o-rings and seals when subjected to high pressures, larger extrusion gaps, and/or high temperatures.
By perfect production and testing equipment, quality guarantee system, advanced detection measure and long term technology innovation, we can guarantee on best quality of the PTFE Back up Ring for Hydraulic Cylinder. All these departments are functional with latest tools, modernized machines and equipment. Once the goal is determined, it is necessary to clarify with the team the role each person needs to play in the process of achieving the goal.
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