155-08300 - Cleveland Wheels and Brakes Snap Ring

155-08300 – Cleveland Wheels and Brakes Snap Ring

Available now on the Airparts.aero Marketplace.

Overview

The Cleveland 155-08300 is a genuine OEM, flight-critical snap ring, a precision-engineered retaining ring for a wide variety of Cleveland brake assemblies. This is not a generic hardware store clip; it is a specialized internal snap ring designed to be installed in a machined groove inside the brake cylinder housing. Its sole function is to act as a positive stop, retaining the pressure plate and piston assembly within the caliper. Manufactured from high-tensile spring steel, the 155-08300 is essential for maintaining the structural integrity of the brake caliper assembly.

Key Features

• Positive Component Retention: Its primary function is to securely retain the brake's internal pressure plate and piston assembly within the caliper housing. It prevents these components from being ejected under hydraulic pressure or during brake release.

• High-Tensile Spring Steel: Fabricated from a premium, heat-treated spring steel alloy. This material is chosen for its high yield strength and elasticity, allowing it to be compressed for installation and then spring back to its original shape to seat firmly in its groove.

• Corrosion-Resistant Finish: Typically plated with a phosphate and oil or similar protective finish. This provides robust protection against corrosion from moisture and de-icing fluids commonly found in the landing gear wheel well.

• Precision Stamping & Sizing: The ring is manufactured to extremely tight tolerances for its diameter, thickness, and radial width. This precision ensures a perfect, secure fit within the machined groove of the brake cylinder.

• Genuine Cleveland OEM Part: As a genuine factory component, it guarantees conformance to the exact material specifications, heat treatment, and dimensional tolerances required for a flight-critical brake component.

Technical Specifications

• Part Number: 155-08300

• Component Type: Internal Snap Ring / Retaining Ring

• Material: High-Strength Spring Steel

• Finish: Phosphate & Oil or equivalent corrosion-resistant finish.

• Primary Function: Retains the pressure plate and piston assembly in the brake caliper.

• Installation: Requires snap ring pliers for installation and removal.

• Certification: FAA Production Approval

Aircraft Compatibility

The 155-08300 is a critical internal component in some of the most common brake assemblies used throughout the general aviation fleet.

• Common Cleveland Brake Assemblies:

  • 30-18, 30-27, 30-9 (Used on Cessna 150, 152, 172)

  • 30-52, 30-52K, 30-52N (Used on Cessna 182, 206, 210)

  • 30-63 (Used on Cessna 182, 206)

• Common Aircraft Manufacturers:

  • Cessna: A vast range of single-engine aircraft.

  • Piper, Beechcraft, Mooney: Many models utilizing the above Cleveland brake assemblies.

Applications

The 155-08300 is an essential component for brake system maintenance and overhaul:

• Brake System Overhaul: A mandatory inspection and re-installation item during any brake caliper overhaul. It is replaced if it shows any signs of corrosion, distortion, or has lost its tension.

• Ensuring Brake Integrity: The integrity of this ring is directly responsible for holding the brake's primary actuating components together. Its failure would lead to a complete loss of braking.

Why Choose 155-08300?

The aircraft braking system is subjected to immense hydraulic pressure and physical force. The 155-08300 snap ring is the small but vital component that holds the caliper assembly together against these forces. Using a genuine Cleveland OEM part is the only way to ensure the ring has the certified material strength and spring characteristics to perform its flight-critical function reliably. The risk of using a non-certified industrial snap ring with unknown material properties could lead to a catastrophic failure of the brake caliper.

Order Your 155-08300 Snap Rings Now

Ensure the safety and integrity of your aircraft's braking system with genuine, factory-certified OEM hardware. Visit Airparts.aero to order your Cleveland 155-08300 snap rings today.

The 155-08300 is an internal retaining ring that functions by being installed into a machined groove or recess inside the bore of the brake cylinder. Its uninstalled diameter is slightly larger than the groove's diameter. To install it, specialized snap ring pliers are used to grip the ring through its lug holes and compress it, reducing its diameter. Once it is aligned with the groove, the pliers are released, and the ring springs outward, seating firmly in the groove. The outward radial force of the spring steel holds it in place, creating a strong, uniform shoulder that prevents the axial movement of the pressure plate and piston assembly. This simple, robust design is highly effective for retaining components in a high-pressure, high-vibration environment.

Note: This is a flight-critical brake system component. Installation must be performed by a certified A&P mechanic during a brake assembly overhaul, in strict accordance with the current Cleveland Wheels & Brakes maintenance manual. Always use the correct snap ring pliers for removal and installation to avoid damaging the ring or the cylinder housing.