Axle unit for driving a vehicle wheel
First Claim
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1. An axle unit for driving a vehicle wheel combined with a constant velocity joint and comprising:
- an outer ring being stationary during use and having an inner peripheral surface formed with an outer ring raceway,a hub having an outer peripheral surface formed with a mount flange for wheel support on one end side thereof, with an inner ring raceway on the other end side thereof, directly thereon or on an inner ring thereon, and with a splined bore at a center portion thereof,a drive shaft member provided with a splined shaft on one end side thereof to form a splined engagement portion between the splined shaft and the splined bore and with a housing portion on the other end side thereof, the housing portion forming an outer ring of the constant velocity joint,a plurality of rolling members rotatably provided between the outer ring raceway and the inner ring raceway,the splined shaft having an outer peripheral surface formed with an inner engagement portion generally circumferentially thereon,the hub having an inner peripheral surface formed with an outer engagement portion generally circumferentially thereon at a location in alignment with the inner engagement portion,a stop ring made of a resilient member and held between the inner engagement portion and outer engagement portion for positioning the hub in the axial direction with reference to the drive shaft member, anda seal member made of a resilient material and resiliently held between the hub and the drive shaft member to seal the splined engagement portion between the splined bore and the splined shaft.
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Accused Products
Abstract
A compact and light weight axle unit with good durability and reliability for driving a vehicle wheel is provided wherein the splined bore 28 of the hub 6a is engaged with the splined shaft 30 of the drive shaft member 29, and a stop ring 35 is held between the outer engagement groove 25 on the inner peripheral surface of the splined bore 28 and the inner engagement groove 24 on the outer peripheral surface of the splined shaft 30 to prevent the splined shaft 30 from being removed.
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Citations
17 Claims
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1. An axle unit for driving a vehicle wheel combined with a constant velocity joint and comprising:
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an outer ring being stationary during use and having an inner peripheral surface formed with an outer ring raceway, a hub having an outer peripheral surface formed with a mount flange for wheel support on one end side thereof, with an inner ring raceway on the other end side thereof, directly thereon or on an inner ring thereon, and with a splined bore at a center portion thereof, a drive shaft member provided with a splined shaft on one end side thereof to form a splined engagement portion between the splined shaft and the splined bore and with a housing portion on the other end side thereof, the housing portion forming an outer ring of the constant velocity joint, a plurality of rolling members rotatably provided between the outer ring raceway and the inner ring raceway, the splined shaft having an outer peripheral surface formed with an inner engagement portion generally circumferentially thereon, the hub having an inner peripheral surface formed with an outer engagement portion generally circumferentially thereon at a location in alignment with the inner engagement portion, a stop ring made of a resilient member and held between the inner engagement portion and outer engagement portion for positioning the hub in the axial direction with reference to the drive shaft member, and a seal member made of a resilient material and resiliently held between the hub and the drive shaft member to seal the splined engagement portion between the splined bore and the splined shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An axle unit for driving a vehicle wheel combined with a constant velocity joint and comprising:
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an outer ring being stationary during use and having an inner peripheral surface formed with an outer ring raceway, a hub having an outer peripheral surface formed with a mount flange for wheel support on one end side thereof, with an inner ring raceway on the other end side thereof, directly thereon or on an inner ring thereon, and with a splined bore at a center portion thereof, a drive shaft member provided with a splined shaft on one end side thereof to form a splined engagement portion between the splined shaft and the splined bore and with a housing portion on the other end side thereof, the housing portion forming an outer ring of the constant velocity joint, the splined shaft having an end face portion formed with a hole, on the inner peripheral surface of which an outer engagement portion is generally circumferentially formed, a plurality of rolling members rotatably provided between the outer ring raceway and the inner ring raceway, a coupling shaft member being different from the hub and having an outer peripheral surface formed with an inner engagement portion generally circumferentially at a location in alignment with the outer engagement portion, a stop ring made of a resilient member and held generally between the outer engagement portion and the inner engagement portion for positioning the hub in the axial direction with reference to the coupling shaft member and drive shaft member in the state where part of the hub is held in the axial direction from both sides between part of the coupling shaft member and part of the drive shaft member, and a seal member made of a resilient material and resiliently held between the hub and the drive shaft member to seal the splined engagement portion between the splined bore and the splined shaft. - View Dependent Claims (14)
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15. An axle unit for driving a vehicle wheel combined with a constant velocity joint and comprising:
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an outer ring being stationary during use and having an inner peripheral surface formed with an outer ring raceway, a hub having an outer peripheral surface formed with a mount flange for wheel support on one end side thereof, with an inner ring raceway on the other end side thereof, directly thereon or on an inner ring thereon, and with a splined bore at a center portion thereof, a drive shaft member provided with a splined shaft on one end side thereof to form a splined engagement portion between the splined shaft and the splined bore and with a housing portion on the other end side thereof, the housing portion forming an outer ring of the constant velocity joint, a plurality of rolling members rotatably provided between the outer ring raceway and the inner ring raceway, a connecting member being different from the hub, such that part of the connecting member is mounted to the one end of the drive shaft member on the one end side thereof, that the part of the connecting member and part of the drive shaft member cooperate with each other to position the hub in the axial direction with reference to the connecting member and drive shaft member, and a seal member made of a resilient member and resiliently held between the hub and the drive shaft member such that the spline engagement portion between the splined bore and the splined shaft is sealed with the seal member. - View Dependent Claims (16, 17)
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Specification