Bearings – Rotary bearing – Plain bearing
Patent
1994-12-08
1996-08-13
Footland, Lenard A.
Bearings
Rotary bearing
Plain bearing
384912, F16C 3304
Patent
active
055449557
ABSTRACT:
A two-piece mechanical joint light weight bearing includes a liner of leaded bronze joined with an outer sleeve of an aluminum alloy. The joint consists of a straight cylindrical section and a threaded section along the axial direction of the bearing. Both the threaded and straight cylindrical sections of the bearing employ a radial interference fit to ensure positive contact between the bronze and aluminum materials. The interference fit is selected to compensate for radial differential thermal expansion between the liner and sleeve and provides a prevailing torque to prevent rotational movement between the liner and sleeve. A molded elastomer seal is located on a first end of the bearing to provide a seal between the liner and sleeve. A method of assembling the bearing includes establishing a relative temperature differential between the component parts, assembling the component parts while held at the differential temperature and then stabilizing the completed assembly at room temperature.
REFERENCES:
patent: 4432659 (1984-02-01), Tuckey
patent: 4509290 (1985-04-01), Stanfield
patent: 5219231 (1993-06-01), Sheedy
patent: 5388915 (1995-02-01), Huber
Argo-Tech Corporation
Footland Lenard A.
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