Tractor fifth wheel bearing attachment

Land vehicles – Wheeled – Articulated vehicle

Patent

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Details

384421, B62D 5308, F16C 1704

Patent

active

045429120

ABSTRACT:
A fifth wheel bearing attachment for mounting on a tractor and avoiding the necessity of providing oil or grease to lubricate the attachment. The improvement to the attachment comprises an antifriction polyolefin plastic sheet covering to fit over a circular fifth wheel metal bearing plate and over two sloped flanges of the fifth wheel attachment. The plastic sheet is attached to the bearing plate and the flanges. Two protective riser bars located on the outside of the two sloped flanges act as protection for the sheet when the tractor is coupled to the trailer.

REFERENCES:
patent: 2508610 (1950-05-01), Kendall
patent: 3174812 (1965-03-01), Widmer
patent: 3355183 (1967-11-01), Kneissl
patent: 3511523 (1970-05-01), Fuller
patent: 3572869 (1971-03-01), Studinski
patent: 3704924 (1972-12-01), Lowry
patent: 3924909 (1975-12-01), Kent et al.
patent: 4121853 (1978-10-01), McKay
patent: 4169635 (1979-10-01), Szalay

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