With professional technology, we have developed Bushings, Bearings, Composite Thrust Washers with multiple performance and multiple styles, and each product has excellent quality. With innovative management team, strong technology research and development ability and perfect after-sales service, our company has created remarkable achievements. The company has always adhered to the brand strategy, extensively cooperated with major counterparts and universities, and actively introduced and developed technologies.
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.
We are driven by technological innovation and backed by scientific management to promote the continuous, rapid and healthy development of the enterprise. We are willing to sincerely cooperate with new and old customers to work hand in hand for the progress and development of the Plastic Back-up Ring Customized in High Precison industry. We are always open-minded and inclusive, focusing on integration of diversity, mutual respect, learning and communication. Our products have gained a good reputation due to their high quality and competitive price from our customers at home and aboard.
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