Raybestos 9986R Disc Brake Rotor and Hub Assembly - Front

Overview of Raybestos R-Line Disc Brake Rotor and Hub Assembly

The Raybestos R-Line 9986R disc brake rotor and hub assembly is engineered for reliable braking performance on select Volvo models. Designed specifically for Volvo 740, 745, and 760 vehicles, this assembly ensures proper fitment and consistent stopping power.

• Compatible with Volvo 740, 745, and 760 models
• Includes disc brake rotor and hub assembly
• Mounting bolt hole quantity: 5
• Mounting bolt hole circle diameter: 107.95 mm (4.250 inches)
• Mounting bolt hole diameter: 13.1 mm (0.515 inches)
• Nominal rotor thickness: 21.95 mm (0.865 inches)
• Discard rotor thickness: 20.00 mm (0.787 inches)
• Stud/lug hole quantity: 5

Detailed Product Specifications

The Raybestos R-Line 9986R rotor and hub assembly features a nominal thickness of 21.95 mm (0.865 inches), providing a solid braking surface for effective heat dissipation and wear resistance. The discard thickness is set at 20.00 mm (0.787 inches), indicating the minimum safe thickness before replacement is necessary. This assembly includes five mounting bolt holes arranged in a circle with a diameter of 107.95 mm (4.250 inches), and each hole measures 13.1 mm (0.515 inches) in diameter. The hub assembly also accommodates five stud or lug holes, ensuring secure attachment to the vehicle’s wheel hub.

About the Raybestos R-Line Product Line

The R-Line by Raybestos is a product line focused on delivering dependable brake components that meet or exceed OEM specifications. This line is designed to provide consistent performance and durability for vehicles requiring precise fitment, such as the Volvo 740, 745, and 760. The 9986R part number within the R-Line offers a direct replacement solution for disc brake rotor and hub assemblies, maintaining factory standards for thickness and mounting dimensions.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing excessive rotor thickness wear beyond discard limits
• Resolving issues with hub assembly damage or corrosion
• Improving braking stability and reducing noise on Volvo 740, 745, and 760
• Ensuring proper bolt hole alignment for secure wheel mounting

Installation Notes and Tips

When installing the Raybestos R-Line 9986R rotor and hub assembly, ensure the mounting surfaces are clean and free of debris to prevent misalignment. Verify that the mounting bolt holes and stud/lug holes correspond correctly to the vehicle specifications. Use a calibrated torque wrench to tighten bolts to the manufacturer’s recommended torque settings. It is advisable to inspect related brake components such as pads and calipers during installation for optimal braking performance.

Quality Assurance and Warranty

Raybestos R-Line brake components are manufactured to meet stringent quality standards, ensuring durability and consistent performance. The 9986R disc brake rotor and hub assembly undergoes rigorous testing to comply with OEM specifications. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region and application.