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Universal Joint Coupling D9L23 – 3.17mm to 4mm Shaft – Stainless Steel

The D9L23 Universal Joint Coupling (3.17mm to 4mm) is a rigid stainless steel shaft connector designed for high-torque applications and precision alignment between mismatched shaft sizes. Commonly used in RC vehicles, boats, robotic mechanisms, CNC machines, and drive systems, this coupling delivers efficient power transmission with durability and corrosion resistance.

This model supports shaft diameters from 3.17mm to 4mm, and features a cross gimbal-style universal joint that allows for slight misalignment between shafts. The outer diameter is 9mm, and the length is 23mm, with M3 side screw holes for secure tightening.

🟣 Key Features:

• Model: D9L23 – 3.17mm to 4mm

• Material: High-strength Stainless Steel

• Outer Diameter: 9mm

• Length: 23mm

• Fixing Hole: M3 screw

• Connection Type: Rigid Universal Joint

• Structure: Cross-style coupling

• Torque Capacity: Suitable for medium loads

• Flexible angle connection: Supports slight shaft misalignment

• Rust-resistant and durable construction

• Includes:

  • 1× Coupling

  • 2× M3 machine screws

  • 1× Hex wrench

🟤 Specifications:

🛠️ Applications:

• RC car and boat drive shafts

• Model airplane motors

• CNC and automation shafts

• Robotics and mechanical arms

• Transmission connectors in model engineering

📦 Package Includes:

• 1 × D9L23 Stainless Steel Coupling (3.17mm to 4mm)