HOME | Products | Steering & Halfshaft | Halfshaft
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| Overview |
A half shaft is a drive shaft linking transmission and wheels. It transmits engine power from the transmission to wheels and has a certain field of angle and axial moving. Especially, in case the suspension system of a driving axle is an independent type, the length and angle of a drive shaft vary repeatedly when a suspension spring expands or retracts.
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| Features |
● Constant Velocity Joint
● T.P.E. Boot for enhancement of durability
● Dynamic damper for enhancement of NVH characteristics
● Sensor ring to materialize the antilock brake system
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Operation
Principle |
A half shaft is composed of inboard joint, outboard joint, shaft, boot and clamp and grease is applied on each shaft for lubrication. Each joint compensates angle change and a structure for a stroke is applied to an inboard joint for compensation of length change of a moving axle. Both ends of a shaft are splined to be coupled with a shaft for transmission of power.
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| Overview |
A Rzeppa joint is an outer joint used in a wheel side of the front dive axle and transmits engine power from transmission and inner joint to wheels. It is linked to the steering system while giving a certain field of angle to wheels.
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| Features |
● T.P.E. Boot for enhancement of durability
● Enhanced wear-resistance & joint performance due to inner &
outer races in cold, warm & hot forging
● ABS sensor ring
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Operation
Principle |
A Rzeppa joint is composed of outer race, ball, cage and inner race. An inner race is coupled with a shaft to transmit drive force of a shaft to an outer race through a ball and an outer race linked to a wheel transmits drive force from a ball to a wheel. A cage regulates the position of axial and radial directions of inner & outer races. A ball transmits drive force by rolling on grooves of inner & outer races and secures a working angle.
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| Overview |
A tripot joint is used at a transmission side of a front drive axle. It transmits engine power from the transmission to a wheel side to give a certain field of angle and axial move. A premium tripot joint demonstrating excellent NVH performance even in a large setting angle is also available in addition to an ordinary tripot joint.
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| Features |
● Reduced weight due to a trilobe shaped outer race
● Having excellent NVH characteristics while the engine is
idling
● A premium tripot joint is a reduced shudder type
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Operation
Principle |
A tripot joint or premium tripot joint is composed of housing and spider assembly. A housing transmits drive force delivered from the transmission to the spider assembly which transmits drive force delivered from a housing again to a shaft. The spider assembly absorbs length change of a drive shaft through axial move and secures a certain field of angle depending on driving conditions of an automobile.
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| Overview |
A cross groove joint is used at a transmission side of a front drive axle and a wheel or transmission side of a rear drive axle. It transmits engine power from the transmission to an axle to give a certain field of angle and axial move.
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| Features |
● No take-off shudder even in the event of a quick start
● Ride comfort is enhanced when a cross groove joint is built
in the independent suspension system and applied to a rear
drive axle
● Less rotational lash
● Adequate for high speed & applicable as a joint for
a propeller shaft
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Operation
Principle |
A Rzeppa joint is composed of outer race, ball, cage and inner race. An outer race transmits drive force delivered from the transmission to a ball, and a ball transmits drive force by rolling on grooves of inner & outer races and secures a working angle. A cage regulates the position of axial and radial directions of inner & outer races and an inner race transmits drive force delivered via a ball to a shaft.
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| Overview |
A tubular shaft is applicable to a half shaft which is a drive shaft linked to transmission and wheels. It may substitute an ordinary solid shaft and enhances performance of power transmission and NVH.
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| Features |
● Reduced weight compared to a solid shaft
● Booming-free due to high natural frequency
● Improved torque steer
● 3 piece type and monobloc types are available
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Operation
Principle |
A tubular shaft, a component of a half shaft transmits drive force delivered to an inboard shaft to an outboard shaft and enhances NVH performance. 3 pieces welded tubular shaft produced by conducting friction welding of a solid on both sides of a hollow tube and monobloc shaft produced simply by swaging tube materials. Optimized specifications are selectable in consideration of NVH characteristics, weight and cost.
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| Overview |
An intermediate drive shaft is a device connecting the transmission and a half shaft to make length of right and left hafts equal when the transmission is not positioned in the center of right and left wheels. It is composed of bracket, ball bearing, inter and shaft.
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| Features |
● Optimum materials and shape for a bracket are applied for
enhancement of NVH characteristics
● An aluminum die casting bracket is applied for weight
reduction
● A dual sealing ball bearing is applied for corrosion-
resistance and durability
● Ball bearing and high temperature grease are applied for
enhancement of thermal resistance
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Operation
Principle |
As a bracket is mounted directly to the engine block and a rotational output of a shaft is transmitted to a bracket, it is significant to design a bracket rigid and strong in materials and shape to the extent it can absorb vibration. In addition, ball bearings fulfill performance of thermal resistance and durability as the temperature around an intermediate drive shaft rises due to a exhaust converter. An extra heat shield may be mounted, if required.
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