Axle Shaft Assembly: Description and Operation

GENERAL INFORMATION

The front axle for W1CJA [Type B] model has been established.
The front axle has the following features:
[FWD]

- The wheel bearing is a unit ball bearing (double-row angular contact ball bearing) which incorporates the oil seals and is highly resistant to thrust loads.

- Lead-free grease for the constant velocity joint is adopted.

- Hexavalent chromium is eliminated from the dust cover material.

- The number of parts is reduced by integrating the magnetic encoder for ABS wheel speed detection into the wheel bearing.

- The driveshaft incorporates lightweight and compact EBJ-ETJ type constant velocity joints.

- Dynamic damper is mounted on driveshaft (RH) to reduce differential gear noise.
[AWD (Type A)]

- The wheel bearing is a unit ball bearing (double-row angular contact ball bearing) which incorporates the oil seals and is highly resistant to thrust loads.

- Lead-free grease for the constant velocity joint is adopted.

- Hexavalent chromium is eliminated from the dust cover material.

- The number of parts is reduced by integrating the magnetic encoder for ABS wheel speed detection into the wheel bearing.

- The driveshaft incorporates lightweight and compact EBJ-ETJ type constant velocity joints.

- Due to the use of the output shaft, the right and left driveshafts have been approximately the same in length, reducing noise, vibration, and torque steer.
[AWD (Type B)]

- The wheel bearing is a unit ball bearing (double-row angular contact ball bearing) which incorporates the oil seals and is highly resistant to thrust loads.

- Lead-free grease for the constant velocity joint is adopted.

- Hexavalent chromium is eliminated from the dust cover material.

- The number of parts is reduced by integrating the magnetic encoder for ABS wheel speed detection into the wheel bearing.

NOTE:

ETJ (High Efficiency Compact Tripod Joint): the lighter and smaller constant velocity joint compared with the conventional TJ has been installed.
EBJ (High Efficiency Compact Birfield Joint): the lighter and smaller constant velocity joint compared with the conventional BJ has been achieved by adopting the eight small balls.
PTJ (Pillow Tripod Joint)

CONSTRUCTION DIAGRAM

[FWD]





[AWD (Type A)]





[AWD (Type B)]