Drive axle assembly
AssigneeHyundai Wia Corporation
InventorsChang Hee Jeong, Hee Joon Kim, Bum Jae Lee
Life of this patent
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Abstract
A drive axle assembly capable of reducing drag torque by eliminating an inner bearing seal from a wheel bearing and capable of reducing the generation of frictional noise at corrugations of a boot. The drive axle assembly includes a wheel bearing assembled with a wheel housing, an outer ring having a ring shape and including an outer-diameter portion secured to an outer wheel of a wheel bearing, a boot including a large-diameter portion formed at one end thereof and assembled with an inner-diameter portion of the outer ring, and a bearing seal unit disposed between a small-diameter portion formed at the other end of the boot and a drive shaft to restrict rotation of the boot and to prevent introduction of foreign substances.
Claims14
A drive axle assembly comprising:
- a wheel bearing assembled with a wheel housing;
- an outer ring having a ring shape and comprising an outer-diameter portion secured to an outer wheel of the wheel bearing;
- a boot comprising a large-diameter portion formed at one end thereof and assembled with an inner-diameter portion of the outer ring;
- a bearing seal unit disposed between a small-diameter portion formed at another end of the boot and a drive shaft to restrict rotation of the boot and to prevent introduction of foreign substances;
- and
- a reinforcement ring coupled to the outer-diameter portion of the outer ring;
- wherein the reinforcement ring is inserted into the wheel bearing such that an outer circumferential surface of the reinforcement ring is in contact with an inner circumferential surface of the outer wheel of the wheel bearing.
Dependencies are inferred from the claim text.