Genuine Mazda MX-5 Miata Wheel Bearing

Mazda MX-5 Miata Wheel Bearing Parts and Q&A

• Wheel Bearing
  FB01-26-151F
  Q: Should a professional mechanic handle the pressing of the wheel bearing and wheel hub from the rear knuckle on Mazda MX-5 Miata?

  A:

  Due to the special tools and expertise required to press the hub and bearing from the rear knuckle, this job should be left to a professional mechanic. However, the knuckle and hub can be removed, and the assembly taken to a dealer service department or other repair shop for further assistance.
• Wheel Bearing
  FB01-26-151C-MV
  Q: How to remove and inspect front wheel bearings in the wheel hub assembly on Mazda MX-5 Miata?

  A:

  The hub and bearing assembly includes the front wheel bearings which do not have a separate service. To start removal, loosen the lug nuts of the wheels, jack up the car and place it safely on jackstands then remove the wheel. Then take out the caliper disc, brake caliper and caliper bracket. Check the endplay of the hub and bearing assembly with a dial indicator against the hub, putting the indicator to zero with the hub pressed in, and recording the reading when the hub is pulled out. In case the endplay is greater than 0.002 inch, loosen the locknut and attempt to re-tighten the locknut to the required specifications. In case this fails to bring the endplay within reach, then the whole hub will have to be changed. When excess endplay is fixed by retightening, the retightened locknut should not be reused but a new one should be fixed. Take off grease cap on the hub, bend back the staked part of the locknut and open it. In case of re-tightening the locknut, remove it, then grind off the staked area then apply correct torque. Removing the bearing and hub assembly off the spindle, with a puller, as required; remove the brake disc shield bolts, as required. To check, feel the bearings in the hub, roughness, looseness, noise, greasy discharge etc.: spin with your fingers to feel. In case of any problems detected or grease leakage, change the hub and bearings. Also, inspect the wheel studs and the ABS sensor ring to check whether they are damaged, which can be repaired in the automotive machine shop. To install, do the reverse of the procedures, but be sure to apply wheel bearing grease and lubricate the spindle, re-fit a fresh locknut, tighten it to the appropriate torque and stake the locknut to ensure it does not loosen.