D19 L25 CNC Flexible Parallel Shaft Coupling Aluminium, 19mm Diameter 25mm Length with 8mm x 6.35mm Bores for Stepper Motor to Ball Screw Applications

D19 L25 Flexible Parallel Shaft CNC Coupling 8mm x 6.35mm
✔️ Aluminum Jaw Coupling for Stepper Motor to Ball Screw Drives

This is a single flexible parallel jaw coupling made from aluminum, designed to connect a motor shaft to a ball screw or lead screw while absorbing minor misalignment. It’s commonly used in CNC machines, 3D printers, automation systems, and motion control setups where smooth power transfer matters.

✅ Pack size: 1 coupling
✅ CNC flexible parallel jaw coupling design
✅ Aluminum body for lightweight strength and clean rotation
✅ Helps absorb vibration and minor shaft misalignment
✅ Commonly used between stepper motors and ball screws
✅ Suitable for precision motion control applications

Dimensions
Outer Diameter 19 mm
Overall Length 25 mm
Bore Size A 8 mm
Bore Size B 6.35 mm

💡 Why are flexible jaw couplings used in CNC and motion control systems?
Flexible jaw couplings are designed to protect motors and drive components while keeping motion smooth.

• Compensates for small angular and parallel shaft misalignment

• Reduces vibration transferred to motors and ball screws

• Helps extend motor and bearing service life

• Maintains consistent torque delivery in precision equipment

A handy choice when you want smoother motion, better alignment tolerance, and reliable performance in compact CNC and automation builds.