Hub and Bearing (Front)
DESCRIPTIONThe front wheel bearing and front wheel hub of this vehicle are a hub and bearing unit type assembly. This unit combines the front wheel mounting hub (flange) and the front wheel bearing into a sealed one-piece unit. The hub and bearing is mounted to the center of the steering knuckle. It is retained by four mounting bolts accessible from the rear of the steering knuckle. The hub flange has five wheel mounting studs.
Vehicles equipped with 14 inch wheels have a 4 inch wheel mounting stud pattern. Vehicles equipped with larger wheels have a 4 1/2 inch wheel mounting stud pattern. If a hub and bearing assembly needs to be replaced, be sure that the replacement assembly has the same size wheel mounting stud pattern as the original part.
The wheel mounting studs used to mount the tire and wheel to the vehicle are the only replaceable components of the hub and bearing assembly. Otherwise, the hub and bearing is serviced only as a complete assembly.
OPERATION
The hub and bearing has internal bearings that allow the hub to rotate with the driveshaft, along with the tire and wheel. The five wheel mounting studs mount the tire and wheel, and brake rotor to the vehicle.