Hub built-in type drive axle
AssigneesHyundai Motor Company, Kia Corporation, Hyundai Wia Corporation
InventorsSung Su Yoo, Seok Ho Bae, Hee Il Kim, Chang Hee Jeong, Bum Jae Lee, Hee Joon Kim
Life of this patent
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Abstract
A hub built-in type drive axle includes one hub housing assuming a role of an external race of a constant velocity joint and a role of a wheel hub simultaneously, wherein the outboard constant velocity joint center is positioned within the full length of the hub housing, and a structure in which a bear housing and a boot assembly ring, including a boot, do not rotate whether the driveshaft 1 rotates is maintained so that performance may be improved, durability may be enhanced, and noise may be minimized.
Claims21
A hub built-in type drive axle comprising:
- a hub housing to which a joint assembly coupled to an end portion of a driveshaft is inserted inward to be coupled and of which a hub bearing is coupled to an external circumferential surface thereof;
- a shaft bearing coupled to the driveshaft;
- a bearing housing coupled to the shaft bearing;
- a boot assembly ring coupled to an external ring of the hub bearing;
- and
- a boot coupled to the bearing housing and the boot assembly ring at either end portion of the boot,
- wherein the bearing housing, the boot, and the boot assembly ring are coupled in a non-rotating structure whether or not the driveshaft rotates,
- wherein a wheel speed sensor is coupled to the boot assembly ring, and
- wherein a packing member is coupled to a portion in which the boot assembly ring and the wheel speed sensor are coupled to maintain airtightness.
A hub built-in type drive axle comprising:
- a hub housing to which a joint assembly coupled to an end portion of a driveshaft is inserted inward to be coupled and of which a hub bearing is coupled to an external circumferential surface thereof;
- a shaft bearing coupled to the driveshaft;
- a bearing housing coupled to the shaft bearing;
- a boot assembly ring coupled to an external ring of the hub bearing;
- and
- a boot coupled to the bearing housing and the boot assembly ring at either end portion of the boot,
- wherein the bearing housing, the boot, and the boot assembly ring are coupled in a non-rotating structure whether or not the driveshaft rotates,
- wherein either end portion of the boot is fixedly coupled to the bearing housing and the boot assembly ring respectively by a boot band, and
- wherein the boot and the boot band are assembled and fastened inboard of the joint assembly.
A hub built-in type drive axle comprising:
- a hub housing to which a joint assembly coupled to an end portion of a driveshaft is inserted inward to be coupled and of which a hub bearing is coupled to an external circumferential surface thereof;
- a shaft bearing coupled to the driveshaft;
- a bearing housing coupled to the shaft bearing;
- a boot assembly ring coupled to an external ring of the hub bearing;
- and
- a boot coupled to the bearing housing and the boot assembly ring at either end portion of the boot,
- wherein the bearing housing, the boot, and the boot assembly ring are coupled in a non-rotating structure whether or not the driveshaft rotates,
- wherein an internal ring of the hub bearing is coupled to an external circumferential surface of the hub housing,
- wherein two rows of bearing balls are assembled between the internal ring and the external ring of the hub bearing, and
- wherein the internal ring of the hub bearing includes an inboard internal ring and an outboard internal ring, the outboard internal ring is supported by a step threshold of the hub housing, and the inboard internal ring is supported by a forming portion bending outboard from an inboard end portion of the hub housing.
Dependencies are inferred from the claim text.