Ball Screw Coupling KH12-140 High Precision Flexible Shaft Coupler for CNC Servo and Stepper Motor
| Model | KH12-140 |
| Type | Helical Flexible Shaft Coupling |
| Material | Aluminium Alloy 6061-T6 |
| Outer Diameter (OD) | 12 mm – 140 mm |
| Bore Size Range | 3 mm – 45 mm |
| Length | 20 mm – 90 mm |
| Rated Torque | 0.5 – 20 N·m |
| Max Speed | ≤ 8000 rpm |
| Misalignment Compensation | ±1° angular / 0.2 mm parallel |
| Backlash | Zero |
| Mounting Type | Clamp Type / Set Screw Type |
| Surface Finish | Anodized (Silver or Black) |
| Operating Temperature | –40°C to +120°C |
Product detail
The KH12-140 Ball Screw Coupling is a precision flexible shaft connector designed to transmit torque efficiently between servo/stepper motors and ball screws.
Made from high-strength aluminum alloy, it combines lightweight design, excellent torsional rigidity, and zero-backlash performance, ensuring smooth, accurate linear motion in CNC machinery and automation systems.
With its helical slit (spiral cut) flexible structure, the KH12-140 coupling compensates for angular, axial, and parallel misalignments, protecting your motor and screw from excessive stress while maintaining synchronization and high precision.
Key Features
Aluminium Ball Screw Plum Coupling with Flexible Jaw Shaft CNC Motor OEM Support Clamp Coupling Customizable Shaft Couplings
Application
CNC machining centers and engraving machines
Servo and stepper motor drives
Ball screw and lead screw assemblies
3D printers and linear actuators
Robotics and automation equipment
Semiconductor and optical machinery
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