DAC37720037 ABS Wheel Hub Bearing (37x72x37mm)

Integrated ABS Tracking: Built-in high-density multi-pole magnetic encoder ring designed for perfect compatibility with active wheel speed sensors.
Double-Row Contact Stiffening: Optimized internal ball complement and raceway curvature engineered to handle combined heavy radial and lateral cornering loads.
Advanced Labyrinth Sealing: Engineered with a specialized dual-lip sealing lip configuration to safeguard the internal grease matrix from moisture, road grime, and salt brine.

The DAC37720037 ABS is a high-performance, double-row angular contact ball bearing specifically upgraded with an integrated magnetic encoder ring on the sealing face. This advanced configuration is vital for modern passenger cars, regional transport vehicles, and high-mileage urban delivery fleets equipped with anti-lock braking systems (ABS), electronic stability control (ESC), and traction management telemetry. The integrated multi-pole magnetic ring tracks real-time rotational velocity, sending a flawless digital square-wave signal to the vehicle's onboard control module to prevent wheel lockup under sudden braking conditions.

Operating conditions for commercial delivery and high-frequency commuter vehicles subject the wheel hub area to extreme thermal cycles and constant vibration. Within our Specialized Assembly Facility, the multi-pole encoder ring is securely vulcanized onto the premium nitrile rubber seal, ensuring it remains magnetically stable and physically unyielding even under high operating temperatures. Through our rigorous 100% Individual Quality Verification, every encoder ring undergoes automated magnetic field strength testing to guarantee uniform polarity distribution and perfect signal definition, preventing dashboard ABS fault codes after replacement.

Customized B2B Supply & Packaging Solutions:To protect the sensitive magnetic properties of the ABS encoder ring during long-distance transit and warehouse handling, DBS implements specialized shielding protocols. Every DAC37720037 ABS unit is packed with a dedicated protective plastic shield over the encoder face, boxed individually in high-strength grease-resistant packaging, and master-palletized for efficient international B2B distribution.
Targeted Technical Clarifications (FAQ):

Q: Which side of the bearing features the ABS magnetic encoder ring?A: The magnetic encoder ring is integrated into one specific sealing face (typically colored brown or dark gray). This encoder side must face inward toward the vehicle's active wheel speed sensor sensor tip during installation.
Q: Can a magnetic tool or impact wrench demagnetize the ABS ring during installation?A: Mechanics must never allow strong magnetic pickup tools near the encoder face, and care should be taken during press-fitting to avoid striking or gouging the encoder seal surface.
Q: Is the internal clearance factory-adjusted for commercial applications?A: Yes, the internal axial clearance is precision-set at the factory. Once the axle nut is torqued to the vehicle manufacturer’s exact specifications, the bearing achieves its optimal preloaded operational geometry.