Self-aligning trunnion bearing assembly

Details Self-aligning trunnion bearing assembly Self-aligning trunnion bearing assembly

1974-11-22

1976-06-22

Makay, Albert J.

Cutlery

172801, 280400, F16C 1106, F16C 2304, F16C 2504, F16C 3308

Patent

active

039648036

ABSTRACT:
A trunnion ball and socket bearing assembly suitable for coupling the push arms of a bulldozer attachment to the sides of a tractor has a removable sleeve disposed coaxially on a trunnion shaft to define a spherical surface. Separatable bearing caps enclose the sleeve and have inner surfaces of spherical configuration to form a pivot joint which is capable of a limited amount of movement at right angles to the principal pivot axis. The replaceable sleeve fits against an annular shoulder on the trunnion shaft and is held thereon by a circular retainer member secured to the end of the trunnion shaft by bolts having heads which seat in counter bores in the retainer member. The sleeve may be heat treated to provide hardness while the trunnion shaft is separately treated to provide high strength thus providing an element which is more durable than a solid ball while being replaceable when necessary without requiring replacement of the entire trunnion. The sleeve retaining means is compact, inexpensive, may be readily disengaged ad re-engaged and is protected in use from exposure to impacts and abrasion.

REFERENCES:
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patent: 2886299 (1959-05-01), Heimaster et al.
patent: 3016273 (1962-01-01), Benoit
patent: 3238647 (1966-03-01), Hall et al.
patent: 3339988 (1967-09-01), Schultze
patent: 3347577 (1967-10-01), Carlson et al.
patent: 3411809 (1968-11-01), Kampert et al.
patent: 3684314 (1972-08-01), Molby
patent: 3778174 (1973-12-01), Molby
patent: 3806158 (1974-04-01), Casey
patent: 3862769 (1975-01-01), Bechman et al.

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