DAC407440 Extended Width Wheel Hub Bearing 40x74x40mm

Extra-Wide 40mm Stance: The extended width ensures perfectly even axial and radial load distribution for safe, high-speed driving in heavier vehicles.
Manual Assembly Validation: Operating entirely through skilled manual assembly, we guarantee that the internal ball complement and seals are perfectly positioned without the mechanical stress of automated pressing.
High Wear Resistance: Deep-hardened inner and outer raceways provide exceptional protection against metal fatigue over thousands of miles.
Environmental Sealing: Fitted with robust multi-lip rubber seals designed to exclude moisture and road salt, ensuring reliable all-weather performance.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	40.00 mm
Outer Diameter (D)	74.00 mm
Total Width (B)	40.00 mm
Precision Standard	ISO P0 / ABEC-1

Product Specifications

Specification	Details
Item Type	First-Gen Wheel Hub Bearing
Model Number	DAC407440
Material	Vacuum-Degassed GCr15 Chrome Steel
Dimensions (Metric)	40.00 mm x 74.00 mm x 40.00 mm
Lubrication	High-Temp Automotive Chassis Grease

Product Introduction

The DAC407440 is a specialized 40x74x40mm double-row angular contact wheel hub bearing, featuring a robust 74mm outer diameter and an extra-wide 40mm profile. This heavy-duty geometry provides highly stable load distribution for larger passenger vehicles and SUVs, enduring aggressive lateral cornering forces and heavy radial loads with ease. Manufactured with meticulous attention to detail using vacuum-degassed GCr15 chrome steel, the DAC407440 serves as a highly dependable and cost-effective aftermarket alternative for global auto parts wholesalers.

Applications

Wheel hub replacement for large passenger sedans, light trucks, and SUVs.
Automotive front and rear suspension heavy-duty rebuilds.
Regional distributor aftermarket auto part inventories.

FAQ

Q: What makes sourcing the DAC407440 from your company advantageous?
A: Our strict manual assembly process eliminates automated production errors. Every single bearing is hand-spun and visually inspected before boxing, ensuring zero out-of-box failures for your mechanics.
Q: Are your wooden pallets compliant with international shipping standards?
A: Yes, all our export pallets are strictly fumigated and heat-treated to comply with ISPM-15 international ocean freight standards.

OEM & Custom Service

B2B customization options include custom laser serialization, bespoke retail box artwork, and heavy-duty ocean shipping packaging to protect heavier bearings.

Packing & Delivery

Coated with rust-inhibitive compounds, vacuum-sealed in VCI plastic wrapping, individually boxed, and secured inside heavy-duty master cartons on export-ready pallets.