Low-friction dual-material seal

  • 28-May-2013 02:11 EDT
6513-13 - DJack.jpg

Freudenberg Sealing TechnologiesSimrit product division has developed a friction-optimized seal that fits in existing standard sealing grooves. Designed to provide more consistent performance, the combined elastomer/polytetrafluoroethylene (PTFE) system offers low breakaway force, improved durability, and temperature resistance for dry-running piston-type systems such as air brakes or pneumatics. With its very low initial breakaway torque and friction, the dual-material seal also provides high-temperature consistency and a comparable installation to that of an O-ring, including direction independence, “twist-safe” performance, and gap extrusion resistance. It also offers increased design freedom, as a variance of geometries and diameters are available to minimize friction differences even when using all production tolerances. The PTFE layer is bonded to an elastomer, which then can be bonded to a solid carrier if required. Freudenberg-NOK found that such a concept could be used to minimize friction and improve the overall comfort at gear changing in automatic transmissions. 

HTML for Linking to Page
Page URL
Rate It
5.00 Avg. Rating

Read More Articles On

Freudenberg Sealing Technologies has expanded its LESS (Low Emission Sealing Solution) lineup to include new products designed to address challenges associated with powertrain friction, smaller spaces, lighter weight vehicles and growth in the electric mobility vehicle arena.
At least for this moment, all is right with the world as Mercedes-Benz reinstates a new-age version of its iconic inline six-cylinder engine.
Tanktwo, a Finland-based startup company is rethinking the basic battery cell and challenging the fundamental economics and operational assumptions of EVs. The ingenious concept is worth engineers' attention.
Conti’s 48-V system will be standard equipment on both gasoline and diesel versions of the Scenic Hybrid Assist model. It is the first of multiple 48-V production announcements coming over the next few years.

Related Items

Training / Education