What is a brake hone and what is it used for?

A brake hone, also called a cylinder hone, is a tool used to resurface the interior of brake cylinders and other similar components. Its purpose is to remove corrosion, rust, and minor imperfections, creating a smoother surface for better sealing and performance. By removing glaze and debris, the hone helps ensure proper contact between the piston and cylinder wall, which is critical for effective braking. Using a brake hone can often salvage a cylinder that would otherwise need replacement, saving time and money.

What are the different types of brake hones available?

Brake hones come in various designs, each suited for specific applications. The most common type uses spring-loaded abrasive stones that expand to fit the cylinder. Another type features a more rigid design with adjustable arms. The best choice depends on the size and type of cylinder you're working on, as well as the desired level of precision. For example, a GearWrench engine cylinder hone is adjustable, allowing it to work on a range of cylinder sizes.

What grit of honing stone should I use for my brake cylinder?

The correct grit depends on the condition of the cylinder and the desired finish. Coarser grits, like 220 or 240, are suitable for removing significant corrosion or imperfections. Finer grits, such as 280 or 320, are used for final finishing and achieving a smooth surface. It's often best to start with a coarser grit and then move to a finer grit for optimal results. Always check the manufacturer's recommendations for the specific honing tool and cylinder material.

Can I use a brake hone on any type of cylinder material?

While brake hones are generally versatile, it's crucial to consider the cylinder material. Most hones are suitable for cast iron and steel cylinders. However, some materials may require specific types of abrasive stones or honing techniques to avoid damage. Always verify the compatibility of the honing stones with the cylinder material before use. If you're unsure, test a small, inconspicuous area first.

How do I properly lubricate a brake hone during use?

Proper lubrication is essential for effective honing and to prevent damage to both the hone and the cylinder. Use a honing oil or light machine oil specifically designed for this purpose. Apply the oil liberally to the stones and the cylinder wall before and during the honing process. The oil helps to carry away debris, reduce heat, and create a smoother finish. Avoid using petroleum based solvents or penetrating oils, as they may not provide adequate lubrication and could contaminate the brake system.

How do I prevent over-honing or damaging the cylinder?

To avoid over-honing, work in short, controlled bursts and frequently inspect the cylinder surface. Use light pressure and avoid dwelling in one spot for too long. A flexible hone like the GearWrench engine cylinder hone allows for more controlled material removal. Regularly check the diameter of the cylinder to ensure it remains within specifications. If you notice any signs of excessive material removal or damage, stop immediately and reassess your technique.

What safety precautions should I take when using a brake hone?

Safety is paramount when using power tools. Always wear safety glasses to protect your eyes from flying debris. Gloves are also recommended to protect your hands from sharp edges and chemicals. Ensure the honing tool is properly attached to the drill or power source, and never exceed the recommended RPM. Work in a well-ventilated area to avoid inhaling dust or fumes. If using cleaning solvents, follow the manufacturer's safety instructions carefully.

How do I clean and maintain my brake hone?

Proper cleaning and maintenance will extend the life of your brake hone. After each use, thoroughly clean the stones with a brush and solvent to remove any debris or metal particles. Store the hone in a dry place to prevent rust and corrosion. Regularly inspect the stones for wear and replace them as needed. Shark Industries offers replacement honing stones in various grits and sizes.

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Brush Research | BC2-3/8-320SC | Brake Cylinder Flex-Hone - 2-3/8 x 8 In - 320 Grit

Name: Brake Cylinder Flex-Hone - 2-3/8 x 8 In - 320 Grit
Brand: Brush Research
SKU: 96494
Price: 27.57 USD
Availability: Discontinued
Rating: 3 (1 reviews)

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2-3/8" x 8" Brake Cylinder Flex-Hone - 320 Grit

Features:

Silicon carbide abrasive type.
A resilient, flexible honing tool with a soft cutting action.
The abrasive globules each have independent suspension that assures the Flex-Hone(R) to be self-centering, self-aligning to the bore, and self-compensating for wear.

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Model: 96494
Manufacturers Part #: BC2-3/8-320SC
Manufactured by: Brush Research
Also Known As: BRMBC2-3/8-320SC

List Price: $30.00 You save: $2.43

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This product was added to our catalog on Thursday 01 February, 2007.

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Brush Research | BC2-3/8-320SC | Brake Cylinder Flex-Hone - 2-3/8 x 8 In - 320 Grit

List Price: $30.00 You save: $2.43

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