GBD 4" (101mm) Brake Cylinder Flex-Hone 240SC Grit - Brush Research

The Brush Research GBD 4" (101mm) Brake Cylinder Flex-Hone 240SC Grit, model GBD40024, is a professional-grade tool engineered for precision surface finishing in automotive and industrial hydraulic systems. This heavy-duty flexible hone efficiently deglazes and refines 4-inch brake cylinder walls, promoting optimal brake system performance and extended component longevity. It is an indispensable tool for technicians focused on accuracy and durability in their maintenance and rebuild operations.

Key Features

• Self-Centering Design: The flexible, abrasive globules automatically center the tool within the bore, ensuring consistent pressure and a uniform finish across the cylinder surface. This design also makes the tool self-aligning and self-compensating for wear, simplifying its use in various setups.
• Silicon Carbide Abrasive: Features durable 240SC grit silicon carbide abrasive, ideal for effectively deglazing and conditioning various cylinder materials, including mild steel, stainless steel, and cast iron, without excessive material removal.
• Consistent Honing Pattern: Produces a uniform crosshatch pattern that is crucial for proper lubrication, oil retention, and effective seal seating within hydraulic brake components. This pattern helps maintain Rvk and Vo volume for oil retention.
• Optimal Surface Conditioning: Engineered to create a precise surface finish (typically an Ra finish range of 24-32 Microinch) that minimizes wear on new seals and pistons, thereby extending the lifespan of the entire brake system.

Applications

This tool is specifically engineered for professional use in a variety of automotive and industrial settings:

• Brake Cylinder Resurfacing: Ideal for honing 4-inch (101mm) brake cylinders to restore their internal surface after wear or contamination, commonly found in a range of vehicles.
• Deglazing Cylinder Walls: Effectively removes existing glaze and minor imperfections from cylinder bores, preparing them for new components and ensuring proper fitment.
• Hydraulic System Maintenance: Used in the preparation of surfaces to ensure enhanced fluid retention and proper sealing within critical brake system components.
• Automotive Rebuilds: An integral tool for ensuring correct piston ring and seal seating during comprehensive brake system overhauls, preventing premature failures and leaks.

Specifications

• Model Number: GBD40024
• Diameter: 4 inches (101mm)
• Grit: 240SC (Silicon Carbide)
• Weight: 1.31 lbs
• Dimensions: 18 x 8 x 7 inches