Vehicle bearing failure testing instrument and failure testing method

摘要: The invention provides a fault detector for vehicle bearing, which judges by utilization of sound features the bearing under condition fault. comprises connector, driver, decibel meter and power module, wherein connector is provided with fixed component matched wheel axle hole wheel, connected on wheel; driver drives to rotate, simulates running state measures generated when rotated, respectively display values high frequency components, medium components low components; module supplies power. also discloses method detecting bearing. importantly characterized in that quantizes acquired according frequency, takes quantized indexes as criterions, avoids nondeterminacy caused judgment virtue subjective experience.