Constant velocity control of the tripod type

A tripod joint comprising:

• an outer joint part with three circumferentially distributed axis-parallel recesses forming circumferentially opposed tracks;
• an inner joint part having a tripod-shaped cross-section with three circumferentially distributed arms engaging the recesses of the outer joint part;
• roller assemblies on each arm, each roller assembly including roller carrying means and a roller directly riding on the tracks, each said roller carrying means being axially and angularly movable relative to an arm axis, and said roller being rotatably supported via a rolling contact bearing on each roller carrying means;
• and
• a pair of plate metal elements provided on opposite end faces of said roller as well as opposite end faces of said roller carrying means axially securing said roller relative to said roller carrying means and contacting said outer joint part, said end face being generally normal to the axis of said roller, each said plate metal element being in contact with the respective roller end face, and said plate metal element being connected to the roller carrying means and having a surface which reduces sliding friction, wherein the one of the plate metal elements being an additional element resting on first holding means on the roller carrying means, second holding means at the roller carrying means is an annular shoulder integral therewith, at least one of the second holding means and the additional element is provided with a surface coating which reduces sliding friction.

A tripod joint comprising:

• a outer joint part with three circumferentially distributed axis-parallel recesses forming circumferentially opposed tracks;
• an inner joint part having a tripod-shaped cross-section with three circumferentially distributed arms engaging the recesses of the outer joint part;
• roller assemblies on each arm, each roller assembly including roller carrying means and a roller directly riding on the tracks, each said roller carrying means being axially and angularly movable relative to an arm axis, and said roller being rotatably supported via a rolling contact bearing on each roller carrying means;
• and
• at least a plate metal element provided opposite at least one end face of said roller, said end face being generally normal to the axis of said roller, said plate metal element being in contact with said roller end face, and said plate metal element being connected to the roller carrying means and having a surface which reduces sliding friction, said plate metal element resting on holding means projecting from the roller carrying means such that the plate metal element is disposed between said roller end face and said holding means, wherein at least one of the holding means and the plate metal element includes phosphated surfaces.

A tripod joint comprising:

• a outer joint part with three circumferentially distributed axis-parallel recesses forming circumferentially opposed tracks;
• an inner joint part having a tripod-shaped cross-section with three circumferentially distributed arms engaging the recesses of the outer joint part;
• roller assemblies on each arm, each roller assembly including roller carrying means and a roller directly riding on the tracks, each said roller carrying means being axially and angularly movable relative to an arm axis, and said roller being rotatably supported via a rolling contact bearing on each roller carrying means;
• and
• at least a plate metal element provided opposite at least one end face of said roller, said end face being generally normal to the axis of said roller, said plate metal element being in contact with said roller end face, and said plate metal element being connected to the roller carrying means and having a surface which reduces sliding friction, said plate metal element resting on holding means projecting from the roller carrying means such that the plate metal element is disposed between said roller end face and said holding means, wherein at least one of the holding means and the plate metal element includes plastic-coated surfaces.

A tripod joint comprising:

• an outer joint part with three circumferentially distributed axis-parallel recesses forming circumferentially opposed tracks;
• an inner joint part having a tripod-shaped cross-section with three circumferentially distributed arms engaging the recesses of the outer joint part;
• roller assemblies on each arm, each roller assembly including roller carrying means and a roller directly riding on the tracks, each said roller carrying means being axially and angularly movable relative to an arm axis, and said roller being rotatably supported via a rolling contact bearing on each roller carrying means;
• and
• at least a plate metal element provided opposite at least one end face of said roller as well as opposite the end face of said roller carrying means and contacting said outer joint part, said plate metal element of said roller being in contact with said roller end face, and said plate metal element being connected to the roller carrier means and being formed so as to be in contact with a recess in said roller carrier means and said plate metal element reduces sliding friction between said outer joint part and roller carrier means.