Brakes – Position adjusters – Supports
Patent
1997-11-25
2000-07-18
Schwartz, Christopher P.
Brakes
Position adjusters
Supports
188325, 384275, F16D 6514, F16C 1700
Patent
active
060893613
ABSTRACT:
An improved bushing assembly for the outboard end of a brake cam shaft is provided with a bushing which establishes a grease flow pathway within the bushing assembly. Grease enters an aperture formed in a boss of the brake spider which holds the bushing through a grease zerk which is aligned with a first radial hole in the bushing, so the fresh grease injected goes directly to a grease reservoir between the bushing and the shaft. Flow channels provided in the bushing interior surface guide the grease around the shaft to a second radial hole which is diametrically opposite the first radial hole. Sealing means on the shaft restrict grease flow axially from the bushing along the shaft. Grease may be purged through the second radial hole to an annular space between a flanged inboard end of the bushing and the periphery of the aperture, from which the grease may exit. The flanged end of the bushing has tabs for engaging slots in the boss to align the bushing and to prevent rotation within the aperture. Because of the symmetric placement of the tabs with the radial holes, the bushing may be used in a first position and rotated 180.degree. for use in a second position before it needs to be replaced.
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Braun David A.
Davison Kent E.
Dana Corporation
Schwartz Christopher P.
Siconolf Robert A.
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