Abstract: A washer is disposed between a lid part of a cup and an end surface of a shaft portion of a cross-shaped shaft so as to be relatively rotated with respect to the end surface of the shaft portion. The washer is provided with a projected portion which is projected into a recess formed on the end surface of the shaft portion. Blade portions are formed on an outer surface of the projected portion. Grooves which are extended from the projected portion outward in a radial direction are formed on an end surface of the washer only at a side of the projected portion in the axial direction.

Abstract: An improved one-point grease distribution system for belt conveyor idlers of a type including bearings with inner and outer races and a shaft disposed through the inner races. The shaft has an axial bore on each end thereof and at least one flow port connecting the blind end of each axial bore with the outside periphery of the shaft. A first annular seal member is disposed on each end of the shaft. A grease tube is disposed around the shaft and is sealed by the first annular seal members to the shaft at each end thereof to form a continuous grease supply passageway on one end of the shaft, through the axial bore, through the flow port, and through the space between the shaft and the grease tube to the other flow port and axial bore. A sealed reservoir is disposed on each side and through each bearing and this grease seal reservoir is defined by a back seal and a front seal.

Abstract: There is disclosed a scroll-type machine particularly suited for use as a refrigerant compressor and incorporating an improved lubrication system for the drive.