Front Axle - Evolution: General Description: Notes
The front axle consists of front wheel hub assembly, knuckles and drive shafts, and it has the following features:
- The wheel bearing incorporates a unit ball bearing (double-row angular contact ball bearing) for reduced friction.
- The front wheel hub assembly combines the hub, wheel bearing, housing, and oil seal in a single unit for fewer parts, better rigidity, improved assembly precision, and better structural organization.
- The drive shaft on wheel side incorporates EBJ type constant velocity joint.
- The drive shaft on differential side incorporates TJ type constant velocity joint.
- ABS rotors for detecting the wheel speed are press-fitted to the EBJ.
- For environmental protection, a lead-free grease is used on the joints.
NOTE:
- EBJ: Eight Ball Fixed Joint; Due to the use of the smaller size eight balls inside the joint, this features weight saving and compact size compared with BJ (Birfield Joint).
- TJ: Tripod Joint