In order to provide a wheel speed sensor for a vehicle ABS that can adjust the clearance of a wheel speed sensor, thereby improving the maintenance and reducing the machining cost,;A sensor member mounted on one side of the wheel, a sensing member slidably mounted on the inner side of the sensor housing to detect a rotation speed while maintaining a certain gap with a ton wheel supported on the wheel, A wheel speed sensor of a vehicle ABS includes a gap adjusting means for adjusting a gap between the wheel speed sensor and the wheel speed sensor.
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