Radial seal

Details Radial seal Radial seal

F - Mech Eng,Light,Heat,Weapons

16

J

277/47

F16J 15/32 (2006.01) F02B 75/02 (2006.01)

Patent

CA 1334763

A radial seal for a shaft, this being made up of a sealing element that is produced from a flat disc with a surface that is parallel in plan, said disc being of a non-elastomer plastic, preferably PTFE, this disc being inserted in the area of its periphery into a reinforcing ring and being curved in the area of its inner periphery to form a cylindrical end section, this being done by cold forming, the seal so formed then lying against the shaft under tension, characterized in that at a thickness of 0.3 - 0.8 mm the disc has an inside diameter that is reduced by a factor of 1.5 - 7x the value of its thickness, the distance of the reinforcing ring from the shaft at the point of installation of the disc being 2 - 7x greater than the thickness of the disc. The radial type shaft seal is particularly well-suited for sealing the crankshaft of a two-cycle engine.

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