This front hub ABS gear ring, also known as the ABS tone ring, is a core signal-generating component of the heavy truck anti-lock braking system. Mounted on the front wheel hub, it cooperates with the ABS wheel speed sensor to generate pulse signals and transmit real-time wheel rotation data to the ABS ECU. It enables the system to detect wheel lock risks and adjust brake pressure to enhance driving safety under emergency braking and slippery road conditions. Fabricated from high-strength carbon steel with precision tooth profile machining and anti-corrosion surface treatment, it delivers stable magnetic signal output and strong resistance to abrasion, rust and impact in harsh working environments. Each gear ring undergoes tooth profile inspection and signal verification before delivery. It resolves ABS warning light activation and intermittent signal loss faults, serving as a critical replacement spare part for heavy-duty truck front brake system overhaul.