X&S DAC28580042 DAC36660035 DAC38720037 Wheel Hub Bearing with ABS

QR Code Verification — Scan the manufacturer’s official app to confirm batch authenticity and traceability for every hub unit before installation.

Technical Specifications

Application Suitability

Why Dashboard Warning Lights Ruin Perfectly Good Hub Replacements

Mismatched ABS magnetic ring configurations trigger immediate system faults, regardless of bearing quality.

When sourcing replacement units, procurement teams often focus strictly on the outer dimensions while overlooking the internal sensor ring specifications. A wheel hub assembly might physically fit the steering knuckle, yet cause the anti-lock braking system to fail if the magnetic pole count or signal track width deviates from the OEM requirement. I have seen entire batches of replacements rejected at the workshop simply because the ABS signal was incompatible with the vehicle’s ECU. Verifying the exact sensor integration is just as critical as checking the bore and outside diameter [NEED_CITE: automotive wheel speed sensor compatibility standards].

Matching the Hub Unit to Tropical Road Conditions

Operating vehicles in high-humidity environments demands strict attention to sealing and internal clearance. The X&S DAC28580042 DAC36660035 DAC38720037 wheel hub bearing is engineered with an unseparated design that maintains structural rigidity under heavy cornering loads. By supplying these units with verified internal designs, we ensure the grease retention and contamination exclusion meet the rigorous demands of wet, muddy, and dusty operational routes.

Thermal Expansion and the Danger of Incorrect Clearance

Wheel hubs experience significant temperature fluctuations during heavy braking and high-speed cruising. Selecting a standard CN clearance instead of the specified C2 or C3 class can lead to thermal binding when the inner ring expands against the shaft. Conversely, excessive clearance causes the rolling elements to skid rather than roll, accelerating raceway wear. The C2 clearance option provided in this series is specifically calculated to maintain optimal preload when the bearing reaches its steady-state operating temperature, preventing premature seizure [NEED_CITE: thermal expansion effects on bearing internal clearance].

Decoding the DAC Dimension Architecture

The DAC prefix identifies a double row angular contact ball bearing optimized for combined radial and axial loads typical in wheel ends. The numerical suffixes—28580042, 36660035, and 38720037—represent the precise bore, outside diameter, and width in millimeters. Unlike standard deep groove ball bearings, these unseparated units are pre-adjusted at the factory. The integrated ABS sensor ring eliminates the need for external tone rings, reducing unsprung mass and minimizing the risk of sensor misalignment during installation.

The Hidden Costs of Ignoring Suffix Details

Failing to verify the exact internal design and ABS configuration leads to catastrophic downstream costs. An incorrect signal ring forces the workshop to remove the newly pressed hub, risking damage to the steering knuckle and requiring a second replacement part. Furthermore, installing a unit without the correct seal type for the local climate allows moisture ingress, leading to raceway spalling and warranty voidance. According to failure analysis frameworks, contamination and improper clearance account for a massive share of premature wheel end failures [NEED_CITE: rolling bearing failure mode classification per ISO 15243].

Why Procurement Teams Trust Our Cross-Referencing

We do not merely match the base dimension numbers; we verify the internal geometry and ABS tooth count against the OEM equipment number. Our authorization across major international brands allows us to provide accurate cross-references that account for C2 clearance and unseparated structural requirements. Every X&S DAC28580042 DAC36660035 DAC38720037 wheel hub bearing is backed by TS16949 certified manufacturing processes, ensuring the chrome steel metallurgy and precision grinding meet strict automotive safety standards. We eliminate the guesswork that causes field failures.

Documentation & Authenticity

• Certificate of Conformity confirming TS16949 automotive quality management compliance.
• Batch and lot traceability linking each hub unit to its specific production run.
• QR verification via the manufacturer’s official app to prevent counterfeit installation.
• Material test report validating the high-carbon chrome steel composition.
• Dimensional and running accuracy inspection report verifying P-class tolerances.
• Country-of-origin documentation for seamless customs clearance and import compliance.

Storage, Handling & Mounting Protocols

• Keep the unseparated hub unit in its original VCI packaging until pressing to prevent chrome steel corrosion in humid storage.
• Never strike the outer ring during installation; apply pressing force only to the inner ring to avoid brinelling the raceways.
• Verify the ABS magnetic ring orientation before pressing, as reversing the unit will destroy the sensor signal.
• Ensure the steering knuckle bore is perfectly clean to prevent misalignment that compromises the C2 internal clearance.
• Use the correct torque specification for the axle nut to establish the required preload for the double row angular contact design.

Engineering Support for Your Hub Sourcing

To ensure complete compatibility, provide the exact OEM equipment number or the vehicle’s VIN for our technical team to verify the ABS signal ring configuration. If you are cross-referencing from another brand, share the required internal clearance and seal type so we can confirm the exact dimensional match. Supplying these application parameters allows us to perform a precise interchange review, guaranteeing the replacement unit integrates flawlessly with your fleet’s braking system.

Frequently Asked Questions

Q: What do the numbers in the DAC28580042 designation represent?
A: The numbers indicate the primary dimensions of the wheel hub bearing in millimeters. For DAC28580042, it means a 28 mm bore diameter, a 58 mm outside diameter, and a 42 mm width. This standardized naming convention helps procurement engineers quickly verify physical fitment before checking internal design specifics like clearance and ABS integration.

Q: How do I ensure the ABS sensor ring matches my vehicle’s ECU?
A: You must cross-reference the OEM part number rather than relying solely on the physical dimensions. Different vehicles use varying magnetic pole counts and signal track widths. Our technical team verifies the exact ABS configuration against the manufacturer’s database to ensure the integrated sensor ring communicates correctly with the vehicle’s anti-lock braking system without triggering dashboard warning lights.

Q: Why do automotive wheel hub bearings often require C2 clearance?
A: Wheel hubs generate significant heat during braking, causing the inner ring to expand on the shaft. A C2 clearance, which is slightly tighter than standard CN when unmounted, is engineered to expand into the optimal operational preload once the bearing reaches its working temperature. This prevents the rolling elements from skidding and ensures stable handling under heavy cornering loads.

Q: What should I check when cross-referencing hub bearings from other brands?
A: Beyond matching the bore, outside diameter, and width, you must verify the internal clearance class, the ABS sensor ring specifications, and the seal type. A base number match might overlook a crucial suffix difference, leading to thermal binding or moisture ingress. Always confirm that the unseparated design and preload adjustments align with the original equipment requirements.

Q: Are there special mounting rules for unseparated DAC hub units?
A: Yes, because the DAC unit is pre-adjusted and unseparated, you must never apply pressing force to the outer ring, as this will transfer the load through the rolling elements and damage the raceways. Always press exclusively on the inner ring. Additionally, ensure the axle nut is torqued to the exact OEM specification to maintain the correct internal preload.