Water lubricated sleeve bearings

Details Water lubricated sleeve bearings Water lubricated sleeve bearings

1978-07-05

1982-03-16

Stearns, Richard R.

Cutlery

252 12, 308DIG8, 308DIG12, F16C 2702, F16C 3320

Patent

active

043197906

ABSTRACT:
A sleeve bearing is described which is useful for carrying the rotating propellor shaft of water craft, as well as for various industrial purposes. The sleeve bearing consists of a single homogeneous solid, hard elastomeric urethane polymer having a Shore D hardness of at least 60, a compressive modulus of elasticity at a 4% compressive strain of at least 50,000 psi and a dry dynamic co-efficient of friction against steel of no more than 0.20. This polymer is machined so as to fit within a cylindrical housing by means of a forced interference fit providing sufficient outward radial force by the outer surface of the sleeve on the housing to retain the bearing in movement-free fit during the operational life of the bearing.

REFERENCES:
patent: 1961536 (1934-06-01), Thiry
patent: 2381270 (1945-08-01), Enz
patent: 3344064 (1967-09-01), Brady et al.
patent: 3383144 (1968-05-01), Zapponi
patent: 3606505 (1971-09-01), Satterthwaite et al.
patent: 3637273 (1972-01-01), Orndorff, Jr.
patent: 3808129 (1974-04-01), Lindlof et al.
patent: 3826547 (1974-07-01), Finefrock
patent: 3942850 (1976-03-01), Minard
patent: 4011189 (1977-03-01), Keil

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