Protective boot assembly for constant velocity universal joint

Details Protective boot assembly for constant velocity universal joint Protective boot assembly for constant velocity universal joint

1987-02-03

1988-05-31

Kundrat, Andrew V.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Housing

Flexible housing

464906, 403288, 403 50, 277212FB, F16C 126

Patent

active

047478055

ABSTRACT:
A protective boot for sealing the free space between the driving and driven parts of a constant velocity universal joint formed of a material which is suitable for injection molding, wherein the boot is formed with a larger outer diameter part mounted on an outer joint member of the joint and attached thereto by a relative thin-walled metal cap which, due to its resilience, is capable of sealingly pressing radial and axial sealing faces provided at the outer diameter part of the boot against an outer circumference and an end face of the outer joint member while securingly embracing them. The boot is formed with a smaller diameter part which is provided with an inwardly directed end facing the outer joint member and resting in sealing engagement against a driving shaft connected to an inner joint member of a universal joint over a defined distance. For improving production characteristics, the inwardly directed end of the boot may have a relatively short length and a resulting free space up to the axial limit of the joint inner member is bridged by a sleeve which may be of cardboard or plastic and which may have elongate slots to facilitate assembly.

REFERENCES:
patent: 2825213 (1958-03-01), Dunn
patent: 3869878 (1975-03-01), Davies et al.
patent: 4132422 (1979-01-01), Sankey et al.

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