Bearings – Rotary bearing – Fluid bearing
Patent
1989-08-10
1991-04-02
Footland, Lenard A.
Bearings
Rotary bearing
Fluid bearing
384477, 384625, 384902, 384909, F16C 3206
Patent
active
050043579
ABSTRACT:
A bearing part for a gas bearing comprising two bearing parts, said bearing part formed of a granite-like or metal substance with pores or gas leakage channels and means for injecting a gas between the bearing parts (2, 3) for forming a gap (7) therebetween. The pores (10) in the surfaces of the granite material of these bearing parts are sealed by a non-brittle, transparent, mechanically, machinable pore sealing material (9, 12) for forming gas bearing parts having a non-porous surface. Examples of pore sealing materials (9, 12) for sealing the pores of the bearing parts and bearing part material are polyurethanes, acrylic polymers, epoxy resins, silicone resins, polyvinylidenefluoride resins, aramide resins etc. Preferably the pore sealing material consists of a polymer being curable at low temperatures, particularly below 30.degree. C.
REFERENCES:
patent: 3578827 (1971-05-01), Smith
patent: 4397910 (1983-08-01), Benson et al.
patent: 4558909 (1985-12-01), Stauber
patent: 4582368 (1986-04-01), Fujita et al.
Footland Lenard A.
Pelt & Hooykas B.V.
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