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Putting the proper torque on the center axle nut sets the preload for the bearing and keeps the bearing from separating while in operation. The torque speciication for this center axle nut is critical to performance and function of the wheel hub. The wheel hub mounting bolt torque speciication also provides a secure it for the wheel hub and ...
1) Mount the hub assembly onto the axle spindle, while holding the outer cone in place. Make sure the bearing cones, spacer and spindle are aligned to avoid seal damage. 2) Install the inner spindle nut and torque to 300 ft-lbs. Do not back off the spindle nut. Pre-Adjusted Wheel Bearing Adjustment Procedures
Axle Wheel Bearing Installation Specifications. NOTE: For disc brake wheel ends, back off the brake caliper until the rotor is clear from the pad linings about 1/16-inch (1.588 mm) gap or more. Refer to Maintenance Manual MM-0467, DiscPlusTM EX225 Air Disc Brake, for more information.
This book provides values to adjust or secure wheel bearings or wheel bearing units. Refer to the following diagrams to determine the type of bearing being serviced and the adjustment procedure or torque. Note: Wheel Bearing adjustment procedures listed for trucks are for models with a full-floating axle only. Type 1
The correct torque specifications are available from a number of sources including SKF’s Torque Specification Guide (#457377). The guide contains torque specifications and procedures for properly securing all domestic and import wheel hub units. Including axle nut, mounting bolts and lug nut specifications.
Generally, jam nuts less than 2-5/8" should be torqued to 200-300 lbf-ft; nuts 2-5/8" and over should be torqued to 250-400 lbf-ft. See chart for exact torque specification. The final step is to use a dial indicator to verify the end play or free movement of the tire and wheel assembly along the spindle axis.
The SKF Seal and Bearing lnstallation Guide (SKF #457809) covers the removal and installation of SKF seals and bearings on front and rear wheel drive passenger cars. Applications include: Front ale seals and bearings. ear ale seals and bearings. inion seals.
