Wheel Knuckle And Hub

The wheel knuckle is a hollow aluminium casting which provides for the attachment for the:

• shock absorber
• wheel speed sensor
• brake caliper
• brake disc shield
• integral link
• tie arm
• upper control arm
• lower control arm.

The attachments for the tie arm and lower control arm are provided by cross-axis joints pressed into the wheel knuckle. The integral link attachment is provided by a bush pressed into the knuckle.

The wheel knuckle also provides the mounting locations for the wheel hub and bearing. The wheel hub comprises a splined drive-flange and wheel studs. A bearing is pressed into the wheel knuckle and a circlip positioned to assist in retaining the bearing. The hub is then pressed into the bearing. The drive shaft locates into the splines of the hub assembly and secured with a stake nut.