RA164-20900 - Rapco FAA-PMA Brake Disc

RA164-20900 – Rapco FAA-PMA Brake Disc

Available now on the Airparts.aero Marketplace.

Overview

The Rapco RA164-20900 is an FAA-PMA approved brake disc, engineered as a high-quality, direct replacement for the Cleveland OEM part number 164-20900. This flight-critical disc, or rotor, is the primary rotating component of the braking system for a specific range of high-performance and turboprop aircraft. Manufactured by Rapco, a leader in PMA brake components, this disc is fabricated from a proprietary steel alloy and subjected to a unique manufacturing and testing regimen. It is designed to provide exceptional durability, resistance to thermal fatigue, and reliable stopping power, making it a trusted and cost-effective solution for discerning operators.

Key Features

• High-Strength Steel Alloy: Fabricated from a proprietary steel alloy, heat-treated to provide exceptional thermal mass, resistance to warping, and high-temperature durability. This ensures the disc maintains its structural integrity under the immense heat and pressure of maximum braking effort.
• Precision Machined & Ground Surface: The disc surfaces are precision-ground to be perfectly flat and parallel. This provides a smooth, uniform friction surface for the brake linings, which prevents vibration, eliminates brake chatter, and ensures even wear of the linings.
• Engineered Thermal Management: Designed to absorb and then efficiently dissipate massive amounts of heat. Its specific mass and surface area are engineered to manage the thermal loads generated when converting the aircraft's kinetic energy into heat, reducing the risk of brake fade.
  
• Wear Indicator: As a primary wear component, the disc's thickness is the key indicator of its service life. It is manufactured to a specific new thickness and has a clearly defined minimum wear thickness, providing a clear, measurable criterion for replacement.
  
• Direct PMA Replacement: A certified FAA-PMA direct replacement for Cleveland P/N 164-20900, guaranteeing perfect form, fit, and function while offering a significant value proposition and trusted performance.

Technical Specifications

• Part Number: RA164-20900
• Manufacturer: Rapco Inc.
• Component Type: Brake Disc / Rotor
• Material: High-Strength, Heat-Treated Steel Alloy
• OEM Replacement for: Cleveland P/N 164-20900
• Primary Brake Assembly Application: Cleveland 30-131 Series
• Dimensions:
  • Outside Diameter: 8.50 inches
  • Inside Diameter: 2.75 inches
• Thickness:
  • New: 0.302 inches
  • Minimum Wear Thickness: 0.272 inches
• Certification: FAA-PMA

Aircraft Compatibility

The Rapco RA164-20900 brake disc is the specified PMA replacement for the brake assemblies on several popular turboprop and high-performance piston aircraft.

• Primary Aircraft Models:
  • Pilatus PC-12 (certain models and serial numbers)
  • Daher (Socata) TBM 700, 850, 900 Series
  • Piper PA-46-500TP Meridian

Applications

The RA164-20900 is the central rotating component of the disc brake system:

• Braking Force Generation: Provides the friction surface that the brake linings press against to generate the torque required to slow the rotation of the wheel.
• Kinetic Energy Conversion: Its primary function during braking is to act as a heat sink, converting the aircraft's immense kinetic energy into thermal energy.
• Mandatory Maintenance Item: A critical wear item that must be inspected for thickness, warping, heat checking, and cracks at regular service intervals and replaced when it reaches its minimum service limits.

Why Choose RA164-20900?

The safety of every landing depends on the reliability of the braking system. The Rapco RA164-20900 provides a high-quality, FAA-PMA certified alternative to the OEM disc, often at a significant cost savings. Rapco is a specialized manufacturer of brake components, and their products are the result of extensive research and development focused on improving durability and performance. For operators seeking a proven, reliable, and cost-effective solution for maintaining their high-performance aircraft, the Rapco PMA disc is the smart choice.

Order Your Rapco RA164-20900 Brake Discs Now

Ensure the safety and performance of your aircraft's braking system with high-quality, FAA-PMA certified components from Rapco. Visit Airparts.aero to order your RA164-20900 brake discs today.

The Rapco RA164-20900 brake disc functions as a thermal energy sink. During a landing, the kinetic energy (Ek​=21​mv2) of the aircraft must be converted into heat (Q) to bring it to a stop. This conversion happens at the interface between the stationary brake linings and the rotating RA164-20900 disc. The disc's material must be able to absorb this massive influx of thermal energy without warping or developing micro-cracks (heat checking). Its thickness is directly related to its "heat sink" capacity. As the disc wears and becomes thinner from normal use, its ability to absorb and dissipate heat is reduced. This is why adhering to the minimum wear thickness of 0.272 inches is a critical airworthiness requirement to prevent brake fade or failure.

Note: This is a flight-critical component. Installation must be performed by a certified A&P or AME mechanic in accordance with the aircraft and component maintenance manuals. Brake discs should always be inspected for condition and thickness at every tire change and brake lining replacement. It is highly recommended to replace discs in pairs on the same axle to ensure even braking performance.