Flexible Shaft Coupler, 8 mm to 8 mm

About this item

🔧 Flexible Shaft Coupler 8 mm → 8 mm (Jaw/Spider Type)

💡 Shock-Absorbing Motion Coupler

The Jaw/Spider Flexible Shaft Coupler (8 mm → 8 mm) provides smooth and reliable torque transfer between shafts of different diameters. Its red elastomer spider insert absorbs vibration, compensates misalignment, and protects motor bearings in CNC, robotics, and automation systems.

🛡️ Built-In Mechanical Benefits

• 🧩 Red elastomer spider for vibration damping
• 🔄 Torsional flexibility for smoother rotation
• ⚙️ Compensation for angular & parallel misalignment
• 🧱 CNC-machined aluminum hubs
• 🔒 Dual set-screw locking
• 🔕 Low backlash for precision motion

📦 Compact & Durable Design

The coupler’s two-piece aluminum hub design isolates shock loads and prevents metal-to-metal contact. Ideal for stepper motors, precision axes, and motion-control assemblies where stability and longevity matter.

🛠️ Applications

• 🤖 Robotics & mechatronics
• 🖨️ 3D printers (Z-axis, extruders, linear drives)
• 🏗️ CNC machines (routers, mills, lathes)
• ⚙️ Stepper motor systems
• 📐 Precision actuators
• 🔩 DIY automation & machinery

⚠️ Notes

• 🔧 Tighten both set screws evenly for proper alignment.
• 🧩 Elastomer spider insert is replaceable.
• ⚠️ Not intended for very high-torque industrial loads.

✨ Key Features

• 📏 Shaft sizes: 8 mm (input) → 8 mm (output)
• 🧲 Materials: Aluminum hubs + red polyurethane spider
• 📐 Outer diameter: ~20–25 mm
• 📏 Length: ~25–30 mm
• 🔩 Fastening: Dual hex set screws
• 🔄 Supports: Angular, axial & radial misalignment
• 🔕 Low backlash design
• 🚫 No lubrication required