For the anti lock braking system (ABS) of the active sensor with multi pole magnetic encoder mounted on the wheel hub bearing unit.
Accuracy and precision of rolling bearings (mainly) size precision and rotation precision. Accuracy level has been standardized, is divided into 0, 6X, 6, 5, 4, six 2 grades.
The anti lock braking system (ABS) sensor mounted at specific gap between the two column raceway.
Many owners in the ordinary time are pay more attention to the automobile tire a little more, hub maintenance but rarely mentioned
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