HMK wheel hub bearing assembly is an integrated automotive rolling bearing unit dedicated to wheel support and rotational load bearing, the core wear part of vehicle chassis system. Different from discrete single bearings, the hub unit integrates bearing body, mounting flange, sealing system, pre-filled lubricant and optional ABS wheel speed sensor into one-piece assembly, realizing plug-and-play installation without secondary greasing or clearance adjustment.

Classified by generation and integration degree:

• Gen1 Wheel Hub Bearing: Split two-piece structure, no integrated sensor, low cost, mainly for old-model passenger cars and light commercial vehicles, rear wheel non-ABS position preferred.

• Gen2 Wheel Hub Bearing: Semi-integrated flange structure, external matching ABS sensor, balance of cost and performance, mainstream for mid-range sedan & SUV aftermarket replacement.

• Gen3 Wheel Hub Bearing: Full integrated ABS sensor & magnetic encoder, sealed one-piece unit, anti-corrosion & high signal accuracy, the most popular version for modern new energy and fuel vehicles.

All HMK hub units adopt high-purity GCr15 chrome bearing steel for inner/outer ring and rolling elements, overall quenching + super-precision raceway grinding process. Dual-layer rubber labyrinth seal + metal dust cover prevent water, mud and sand intrusion; high-temperature lithium-based grease pre-filled inside, maintenance-free for whole service life.

HMK covers full OE-spec hub units for Japanese (Toyota/Honda/Nissan), European (BMW/VW/Audi), American (Ford/GM/Dodge) vehicles, including passenger car, SUV, pickup truck and light truck series. 

Support custom non-standard machining and private logo OEM service for global aftermarket wholesalers.

Core Advantages

1. Three Generation Full Coverage

Gen1 split, Gen2 semi-integrated, Gen3 full ABS integrated versions, cover all old & new fuel/EV vehicles, meet low-cost and high-end market demands.

2. Integrated ABS Sensor Option

Gen3 built-in magnetic encoder & wheel speed sensor, stable signal output, compatible with original vehicle ABS/ESP system, no error code after installation.

3. Dual-Layer Heavy-Duty Sealing Structure

Labyrinth rubber seal + iron dust cap double protection, excellent waterproof, mud-proof and dust-proof performance, adapt to rainy, muddy and rough road conditions.

4. Pre-Greased & Maintenance-Free

Factory filled high-temperature anti-oxidation lithium grease, no need secondary refueling, reduce maintenance cost for repair shops and end users.

5. OE Interchangeable Precision Size

Strictly follow ISO/SAE automotive standard dimensions, 1:1 replace SKF/NSK/TIMKEN original parts, zero modification during installation.

6. Long Service Life & Low Noise

Precision ground raceway & high roundness rollers, smooth rotation, low running noise, anti-fatigue under long-term dynamic load. 

7. Complete Vehicle Model Matching

Full database for JDM/USDM/EUDM cars, pickup trucks and SUVs, front/rear wheel dedicated models available.

Main Applications

• Passenger Vehicles: Sedan, hatchback, MPV front/rear wheel rotation support

• New Energy EV: Electric car hub load bearing, ABS speed detection system

• Light Commercial Vehicles: Pickup truck, small van wheel hub assembly replacement

• Off-Road & SUV: Reinforced hub unit for rough terrain and heavy load conditions

• Automotive Aftermarket: Repair shop replacement, global wholesale distribution

• Chassis Modification: Standard & reinforced hub unit for vehicle chassis upgrade

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