Composite porous bearing

Details Composite porous bearing Composite porous bearing

1996-11-27

1999-04-20

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

384902, F16C 3324

Patent

active

058951199

ABSTRACT:
A bearing comprising different materials having oil-filled pores in them has a relief space in the middle section which is not provided by machining. The materials are different, have different characteristics, and bear different portions of load the bearing supports, resulting in longer bearing life and reduced noise. Materials 1 and 2 are separately formed and sintered in such a way that material 1 has smaller pores in it and can support higher load, material 2 has larger pores in it and can support lower load, and an end portion of each material is stepped so that material 1 can be partially inserted into material 2 and a relief space is provided on the inner periphery of material 1. The materials 1 and 2 are then joined together into one piece, and the one piece is placed in a sizing die and pressed. The sized one piece is a strong one-piece bearing having an accurate inside diameter and good concentric alignment.

REFERENCES:
patent: 2227307 (1940-12-01), Hildabolt
patent: 2698774 (1955-01-01), Haller et al.
patent: 2800373 (1957-07-01), Kablick et al.
patent: 3352612 (1967-11-01), Eudier
patent: 3445148 (1969-05-01), Harris et al.
patent: 4715731 (1987-12-01), Tittizer

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