NSK 55BWKH29A Wheel Bearing and Hub Assembly - Rear

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NSK 55BWKH29A Wheel Bearing and Hub Assembly - Rear

Brand	NSK 55BWKH29A
Position	Rear
ABS Equipped	Yes
ABS Type - Tone Ring, Sensor, Magnetic Encoder	Magnetic encoder
Bolt Circle Diameter Mounting Flange	101
Bolt Circle Diameter Wheel Flange	114.3
Brake Pilot Diameter	68
Driven / Non-Driven	Driven
Flange Bolt Hole Quantity	4
Flange Diameter	139
Flange Offset	60.3
Generation	3
Hub Pilot Diameter	75
Number of Splines	26
Wheel Pilot Diameter	67
Wheel Stud Quantity	5
Fits	Mazda · 6 vehicles

OE technology. Vehicle-specific fit-form and performance for a precise replacement.

Sealed design. Premium all-weather grease and multi-lip sealing resist contamination.

ABS encoder. Integrated magnetic encoder supports wheel speed signal output.

$104.40Free shipping

In stock · usually ships same day before 1pm CST

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Wheel Bearing and Hub Assembly Overview

This NSK wheel bearing and hub assembly is built for driven rear applications with ABS integration and a magnetic encoder. It is a direct-fit replacement for select Mazda CX-3 models and is engineered for stable wheel support, low-friction operation, and consistent sensor output.

Key Features

ABS-equipped design with an integrated magnetic encoder for wheel speed signal input.
Sealed-for-life construction with premium all-weather grease for zero-maintenance operation.
Superfinished precision raceway and low-friction bearing design for smooth rotation.
Advanced multi-lip sealing helps resist water and contamination intrusion.
Vehicle-specific OE technology for fit, form, and performance.

Detailed Description

NSK 55BWKH29A is a wheel bearing and hub assembly developed with OE-level engineering and built for demanding driveline use. The assembly includes a magnetic encoder and ABS capability, making it suitable for vehicles that rely on integrated wheel speed sensing. Its sealed design, precision bearing surfaces, and contamination-resistant sealing support consistent operation in everyday driving conditions.

Fits 2021 Mazda CX-3, rear. Fits 2016-2020 Mazda CX-3, rear. This part cross-references no listed aftermarket numbers for the same application.

What It Helps Solve

Wheel bearing noise or rough rotation from worn hub components.
ABS warning concerns caused by a failing integrated encoder.
Excess play or looseness at the wheel hub assembly.
Moisture or contamination-related bearing wear.
Reduced driveline smoothness in a driven rear hub application.

Installation Notes and Tips

Confirm ABS-equipped fitment and rear application before installation. Verify the wheel flange, bolt pattern, and hub dimensions against the original part to ensure proper alignment and sensor operation. Use the vehicle service procedure for torque and setup requirements.

Quality Assurance

NSK is a global manufacturer of advanced rolling bearing products and supplies components to major automobile manufacturers and suppliers. Part number 55BWKH29A reflects NSK OE-focused engineering for long service life and dependable performance.

This part fits 6 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Drive Type	Liters	Cylinders	Position	Notes
2021	Mazda	CX-3	AWD	2.0L	L4	Rear	NSK IS THE O.E. MANUFACTURER
2020	Mazda	CX-3	AWD	2.0L	L4	Rear	—
2019	Mazda	CX-3	AWD	2.0L	L4	Rear	—
2018	Mazda	CX-3	AWD	2.0L	L4	Rear	—
2017	Mazda	CX-3	AWD	2.0L	L4	Rear	—
2016	Mazda	CX-3	AWD	2.0L	L4	Rear	—
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