Wholesale Wheel hub bearing 38BWD12 DAC3872W-8CS81 Manufacturers, Exporter

Product Description

38BWD12 Wheel Hub Bearing Product Overview

The 38BWD12 Wheel Hub Bearing is a high-integration automotive wheel-end component, widely used in passenger cars and light vehicles. As a standardized DAC-series bearing, its model encodes key dimensions: 38mm inner diameter (mounting shaft), 72mm outer diameter (housing fit), and 36mm overall width. It adopts an integrated design, pre-assembling inner/outer rings, rolling elements, seals, and mounting flanges, serving as a core part for wheel rotation. Engineered to withstand combined loads from vehicle weight, road impacts, and braking forces, it ensures driving safety, smooth operation, and low noise, being a staple in automotive OEM production and aftermarket replacement.

38BWD12 Wheel Hub Bearing Product Features

1. Integrated Compact Design: Integrates bearing, flange, and seal into one pre-assembled unit, simplifying installation, reducing wheel-end space occupation, and avoiding assembly errors.

2. Strong Combined Load Capacity: Optimized angular contact structure bears heavy radial loads (vehicle weight) and bidirectional axial loads (cornering/braking), withstanding sudden road impacts stably.

3. Excellent Sealing & Durability: Equipped with multi-layer rubber lip seals and metal dust covers, it effectively blocks water, dust, and road salts, preventing lubricant leakage and internal corrosion.

4. Low-Noise & High Precision: Precision-machined raceways and high-quality steel rolling elements minimize friction; advanced lubrication technology ensures low rotational noise and long service life (up to 150,000+ km).

38BWD12 Wheel Hub Bearing Product Applications

1. Passenger Cars: Matched to compact and mid-size passenger cars (e.g., hatchbacks, sedans), serving as front/rear wheel hub bearings, ensuring smooth driving and ride comfort.

2. Light Commercial Vehicles: Applied in light vans, mini-trucks, and MPVs, adapting to frequent start-stop and moderate load changes in urban logistics or passenger transport.

3. New Energy Vehicles (NEVs): Suitable for small electric cars and plug-in hybrids, with low-friction design reducing energy consumption and matching electric drivetrain requirements.

4. Special Light Vehicles: Used in light modified vehicles like urban electric logistics vehicles and small recreational vehicles, meeting wheel-end reliability needs in specialized scenarios.

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Automotive Wheel Bearing

Frequently Asked Questions

What are the specific dimensions of the 38BWD12 Wheel Hub Bearing?
The 38BWD12 Wheel Hub Bearing features standard dimensions of 38mm inner diameter, 72mm outer diameter, and 36mm overall width, making it a standardized DAC-series design.
How does the integrated design benefit installation?
It pre-assembles the inner/outer rings, rolling elements, seals, and mounting flanges into one unit, which simplifies the mounting process, minimizes space, and avoids common assembly errors.
Can this bearing handle heavy cornering and braking forces?
Yes. It features an optimized angular contact configuration engineered to support heavy radial loads (vehicle weight) and bidirectional axial loads (generated during braking and cornering).
What protection does the bearing have against water and dust?
It is built with multi-layer rubber lip seals and metal dust covers that block external elements like water, road dust, and salt, protecting the internal components from corrosion and preventing grease leakage.
Is the 38BWD12 bearing suitable for New Energy Vehicles (NEVs)?
Yes, its low-friction, high-precision engineering meets the efficiency requirements of electric drivetrains and helps reduce energy consumption in NEVs and hybrid cars.
What is the estimated service life of this wheel hub bearing?
Under standard operational conditions, the advanced lubrication and high-precision raceways enable a long service life of up to 150,000+ kilometers.

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