NSK 66BWKH30D Wheel Bearing and Hub Assembly - Front Left

Overview of NSK Wheel Bearing and Hub Assembly 66BWKH30D

The NSK 66BWKH30D wheel bearing and hub assembly is engineered for precision and durability, designed specifically for select Lexus models. This driven hub assembly features a magnetic encoder for ABS systems, ensuring accurate wheel speed data for enhanced vehicle safety and performance.

• ABS equipped with magnetic encoder for reliable sensor feedback
• Driven hub design compatible with Lexus GS300, GS350, IS200t, IS250, IS300, IS350, RC200t, RC300, and RC350
• Bolt circle diameter mounting flange: 130 mm; wheel flange: 114.3 mm
• Flange bolt hole quantity: 4; wheel stud quantity: 5 with M12x1.5 size
• Brake pilot diameter: 62 mm; hub pilot diameter: 90 mm; wheel pilot diameter: 60 mm
• Flange diameter: 140 mm with 50 mm flange offset
• 30 splines for secure drivetrain connection
• Generation 3 design for improved fit and function

Detailed Product Description

The NSK 66BWKH30D wheel bearing and hub assembly is a critical driveline component designed to meet the exact specifications of various Lexus models including the GS and IS series as well as the RC coupes. This assembly integrates a magnetic encoder ABS tone ring, which provides precise wheel speed signals to the vehicle’s anti-lock braking system. The driven hub configuration supports torque transfer from the drivetrain to the wheels, ensuring smooth and reliable operation.

With a bolt circle diameter of 130 mm on the mounting flange and 114.3 mm on the wheel flange, this assembly fits securely with the vehicle’s suspension and wheel components. The flange offset of 50 mm and the 30-spline design contribute to proper alignment and drivetrain engagement. The assembly includes five M12x1.5 wheel studs and four M12x1.25 flange bolt holes, providing a robust mounting interface.

Compatible Lexus Models and Applications

• Designed for Lexus GS300 and GS350 models
• Compatible with Lexus IS200t, IS250, IS300, and IS350
• Fits Lexus RC200t, RC300, and RC350 coupes
• Ideal for replacing worn or damaged wheel bearing and hub assemblies in these vehicles

Common Issues Addressed by This Assembly

• Eliminates wheel bearing noise and vibration
• Restores proper ABS sensor function with integrated magnetic encoder
• Resolves wheel hub looseness and play
• Prevents uneven tire wear caused by hub misalignment
• Improves drivetrain torque transfer and vehicle stability

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Use proper torque specifications for flange bolts and wheel studs
• Inspect surrounding suspension components during replacement
• Verify ABS sensor connections and functionality after installation
• Professional installation is recommended for optimal performance

Quality Assurance and Warranty

NSK manufactures the 66BWKH30D wheel bearing and hub assembly to meet stringent quality standards. This Generation 3 component undergoes rigorous testing to ensure durability and precise fitment. While specific warranty details may vary, NSK products typically include coverage against manufacturing defects. Consult product documentation or authorized sources for exact warranty terms.