Bearings – Rotary bearing – Plain bearing
Patent
1988-08-25
1989-11-07
Hannon, Thomas R.
Bearings
Rotary bearing
Plain bearing
277206A, 277194, 277168, 384140, 384153, F16C 3374, F16C 900, F16C 1500
Patent
active
048787663
ABSTRACT:
A high-speed self-lubricating bearing-seal assembly comprised of an annular bearing-seal composed of readily moldable, self-lubricating, plastic material having a pressure velocity value at least equal to 1800 at 100 feet per minute surface speed, and an elastic combined spring and seal member biasing the bearing-seal. The elastic member is located behind the bearing-seal and is formed of a readily flowable rubber-like material, consisting of a combined spring and seal which gently urges the bearing-seal against a sealing surface. The elastic member is generally right-angled polygonal in cross-sectional shape and has concaved sides and convex corners, its minimum radial dimensions between the corners being 60-70% of its maximum radial dimensions. A salient feature of the assembly is that it is a dry bearing-seal, in that no lubrication is required other than that inherent in the bearing-seal member, yet it outlasts other lubricated bearings by a wide margin.
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Hannon Thomas R.
Quadion Corporation
LandOfFree
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