US 5,209,700 AGranted

Constant-velocity joint

AssigneesGKN Automotive AG, FAG Kugelfischer AG

InventorsJurg Bensinger, Werner Krude, Manfred Troster

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Abstract

Constant-velocity joints in tripod construction have an external joint component (1) in which are formed three circumferentially spaced axial guide tracks (2) with bearing surfaces opposite each other in the circumferential direction. An interior joint component (3) has three circumferentially spaced radial trunnions (4) which engage in the guide tracks (2). A roller unit (8) is on each of the trunnions (4) and is radially supported in the guide tracks (2). The roller units (8) are essentially held at constant angles in the guide tracks. The roller units (8) are, relative to the trunnions (4) and radially movable with angular mobility. The roller unit (8) are each mounted, free to rotate, on a roller carrier (6). The trunnions (4) have connected to their ends, spherical heads (5) which engage a radial internal recess of the roller carrier (6). A needle bearing (7) with a cage (9) is located between each roller carrier (6) and roller unit (8).

Claims7

Dependent claims

A tripod constant-velocity joint comprising:

an external joint component having three circumferentially spaced axial guide tracks with bearing surfaces opposite each other in the circumferential direction;
an interior joint component having three circumferentially spaced radial trunnions formed to engage in the guide tracks, said trunnions having spherical heads;
a roller carrier having a radial internal recess engaging said trunnions and said trunnions being slidable and having angular mobility in said recess;
one roller unit on each of the trunnions supported in the guide tracks, each roller unit is substantially held at constant angles, and, relative to the trunnions, is movable with angular mobility, and said roller units are each mounted, free to rotate, on said roller carriers;
a needle bearing assembly having a cage located between each roller carrier and roller unit;
and means for radially inwardly supporting the roller carrier, relative to the joint axis, by the roller unit via the cage, while said roller unit is in turn radially inwardly directly supported by the external joint component.

3 more elements

Dependencies are inferred from the claim text.