Brand
Caliper Application – Haldex DB22, DB22LT
Rotor Diameter – 430 mm
Rotor Thickness – 45.0 mm
Rotor Height – 150 mm
Pilot Diameter – 219.71 mm
Bolt Circle – 249.5 mm
Rotor Type – UL
Cross Reference – Meritor: R44D6206, OEM: R6206M
Lateral runout, or wobble, on the rotor braking surface should not exceed 0.020″ in one full revolution of the rotor. The measurement should be taken with a dial indicator at the center of the rotor braking surface. See figure 13 for proper runout measurement set up. The runout measurement should not include end play of the wheel bearings. If the runout measurement is over 0.020″, the end play of the wheel bearings should be checked. If the wheel bearing end play is greater than the manufacturer’s recommendations, the wheel bearings should be adjusted per the manufacturer’s recommendations. Lateral Runout FIGURE 13 Rotor Thickness The rotor thickness should be measured at three points using a micrometer as shown in figures 15. If the rotor thickness varies more than 0.005″ between any two places, the rotor should be replaced.
Radial Runout FIGURE14 Top of Rotor FIGURE 15 DISC BRAKE ROTOR INSPECTION Radial runout on the outside diameter of the braking surface should not exceed 0.035″ when checked with a dial indicator. See figure 14. If the runout exceeds 0.035″, the rotor should be replaced.
