The shown wheel is suitable for replacement, due to the beating, felt on the brake pedal during braking, verified at the roller control station. In addition, the shield is corroded and the thickness below 9mm, and the minimum thickness, ie the limit value is 9mm.
Of course, the pads should also be replaced. We always exchange the complete set on the whole axle.
See also how to measure the side runout of the hub: • Jak używać czujnik zeg...
In addition to checking the runout, the thickness of the disc should always be measured and the result obtained should be compared with the data of the disc or car manufacturer regarding the thickness limit.
You should also check the thickness of the disc in 8 places, every 45 ° on the dial, to have a view of wear on the whole surface.
Of course, corroded, cracked, deep-grooved discs should be replaced together with the blocks on the whole axle.
The reason for the run is the disc, but the reason for damaging the disc may be bad disc assembly, beating excessive hubs, bearing looseness or incorrect operation, eg. Hand wash after heavy braking.
The dial gauge can be bought online in your garage, it can be useful for other precise measurements.
See an example set with a tripod: goo.gl/ARAKBq
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