Fag Kugelfischer Georg Schafer

Steffen Neugebauer

Gunter Scharting

Peter Dreschmann

Wilhelm Walter

A fastening device for the rollers of a roller bushing, such as a universal joint bushing. The roller bushing includes a pin, an outer bushing around and spaced from the pin and rollers between the pin and the outer bushing. A groove in the outer bushing receives a holding ring which is generally U shaped. The groove in the outer bushing is shaped for receiving the radially outer leg of the holding ring under tension. The radially inner leg of the holding ring has projections which cooperate with projections on an outer seal for snap-holding the outer seal to close off the space between the pin and the bushing. The radially-directed, axially inwardly facing surface of the transition leg of the holding ring rests against the axially inward surface of the groove. Further, an inner sealing element for the space between the pin and the outer bushing rests against that same surface of the transition leg of the holding ring.

Fastening device for the rollers of a roller bushing

In a bushing around a pin, where the bushing is separated from the pin by a series of rollers, as in the pin of a cardan joint, the free space between the bushing and the pin is closed by an axially short packing. An annular protective cap disposed over the packing extends around the pin. The cap has a radially extending section that extends over the axial end of the packing and has an axially extending section covering the packing and extending toward the bushing. A rib inside the radially extending section of the cap extends into a cooperatingly shaped groove in the adjacent radially extending surface of the packing so that the protective cap is elastically held to the packing. The outer end of the rib is thickened and the bottom of the groove is correspondingly widened for holding the cap to the packing.

Protective cap for the sealing of a bushing around a pin in a cardan

A bottom plate for emplacement in a bushing having an opening defined by an internal peripheral side wall and a bottom of the bushing. A pin, like the pin of a universal joint cross piece, is received in the opening of the bushing with rollers around the periphery of the pin for permitting rotation of the pin in the opening of the bushing. The bottom plate is disposed between the bottom end of the pin and the bottom of the bushing. Radially extending lubricant distribution grooves are defined in the bottom plate. First ones of the grooves extend over the region beneath the bottom end of the pin along the side of the bottom plate opening toward the pin. Second ones of the grooves extend over the region of the bottom plate beneath the rollers along the side of the plate and opening toward the bottom of the bushing. A step-like transition is defined between the first and the second ones of the grooves in the bottom plate. Centering projections are defined around the periphery of the plate for cooperating with the transition region between the bottom and peripheral side wall of the bushing. The peripheral edge of the edge of the pin may also be chamfered.

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Hesselbach, Germany

Steffen Neugebauer