J Perkins Model Boat Insert Coupling 2.3mm 5511858

J Perkins 2.3mm Insert Coupling, part number 5511858, is a brass insert coupling for model boat drive systems. Its ribbed, splined shaft section is designed to press securely into a flexible universal joint coupling or rubber drive, helping create a firm connection between the motor and propeller shaft. The 2.3mm insert supports power transfer through the drive system and helps reduce drivetrain movement when torque is applied. Made from solid brass, this coupling is suitable for marine applications involving exposure to fresh or salt water, where corrosion resistance is important. It is supplied as the insert coupling component for integration with a compatible flexible joint or rubber drive.

Features

• Ribbed, splined shaft profile for secure insertion into a flexible coupling body
• Solid brass construction for use in wet model boat environments
• Helps transfer power between motor output and propeller shaft