Wheel Bearing Excessive Play Inspection

1. Remove the wheel and tire. (See WHEEL AND TIRE REMOVAL/INSTALLATION .)
2. Disconnect the rubber from the bracket.
   Fig 1: Front ABS Wheel-Speed Sensor, Bracket, Rubber, Steering Knuckle And Bolt With Torque Specification

   Courtesy of MAZDA MOTORS CORP.
3. Disconnect the front ABS wheel-speed sensor wiring harness on the steering knuckle and set it aside so that it does not interfere with the servicing.
4. Remove the clip from the bracket.

   Courtesy of MAZDA MOTORS CORP.

5. Remove the front brake hose from the bracket.
6. Remove the front brake caliper component and suspend it in a place out of the way using a cable. (See FRONT BRAKE DISC REMOVAL/INSTALLATION (US) .)
7. Remove the front disc plate. (See FRONT BRAKE DISC REMOVAL/INSTALLATION (US) .)
8. Install the magnet base and dial gauge as shown in the illustration and inspect for excess play in the axial direction of the wheel bearing.

Courtesy of MAZDA MOTORS CORP.

Front wheel bearing maximum play 

0.05 mm {0.002 in}

• If it exceeds the maximum specification, replace the wheel bearing. (See WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION (US) .)