Description

Brake Disc for Contractor and Heavy Duty Radial Arm Saws

Built to Restore Reliable Stopping

This replacement brake disc is a core part of your saw’s braking system. During shutdown, it applies friction against the Fan and Liner Assembly to bring the motor to a controlled stop—critical for safety and cut accuracy.

Compatibility

• Original Saw Company Contractor Duty Radial Arm Saws Type 4 and newer
• Original Saw Company Heavy Duty Radial Arm Saws
• Certain 3500 Series DeWalt Radial Arm Saw motors (verify motor series before ordering)

Note: Not designed for earlier Contractor Duty Types 1–3.

Two-Sided, Reversible Design

The Brake Disc for Contractor and Heavy Duty Radial Arm Saws is double-sided. If you notice glazing, grooves, or longer stopping times, remove and flip the disc to use the fresh side. Replace the disc once the friction liner has worn through the surface or if braking time continues to increase.

When to Inspect or Replace

• Increased motor stopping time
• Visible wear, glazing, or scoring on the disc
• Friction liner contact worn through the disc
• Persistent braking issues after installing a new brake coil

Troubleshooting & Related Components

If braking performance doesn’t improve after installing a new disc, inspect or replace these related parts:

• Fan and Liner Assembly
• Brake Module
• Tie Rod Kit
• Brake Coil Assembly

Step-by-Step Repair Video

Watch how to replace a brake disc in your radial arm saw motor. This tutorial outlines the step-by-step process of removing and installing the brake disc, while also covering related components such as the brake module, fan and liner assembly, brake coil assembly, and tie rod kits to restore proper braking performance.

This video demonstrates:

• Removing the brake coil
• Relacing the brake disc
• Replacing tie rods
• Installing the fan and liner assembly
• Reassembling the motor for reliable operation

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