Description
The Rigid Coupling is an original Creality spare part engineered to eliminate the "Z-wobble" and vibration issues often associated with cheaper, flexible spring couplers. By locking the stepper motor shaft directly to the lead screw, it ensures perfectly synchronized vertical movement.
Machined from high-density Aviation Aluminum, this coupling features an anodized finish that resists corrosion and wear. It is the standard hardware for the high-speed Ender-3 V3 SE and CR-10 series, where mechanical rigidity is paramount for maintaining print quality at higher accelerations.
Features
Zero-Flex Design: Unlike "plum" or spring couplers, this rigid version prevents any axial or radial compression, leading to more consistent layer heights.
Aviation Grade Aluminum: Lightweight yet extremely durable, providing the structural integrity needed for long-term industrial use.
Corrosion-Resistant Finish: The silver anodized surface protects against moisture and oxidation.
Four-Screw Secure Locking: Uses multiple grub screws (M4) to provide uniform clamping force, preventing the lead screw from slipping during heavy Z-hop maneuvers.
Universal 5x8mm Bore: Features a dual-size internal diameter (5mm for the motor shaft, 8mm for the lead screw), making it compatible with almost all standard NEMA 17 stepper motors.
Specifications
Model Number: 4004140003
Compatible Printers: Ender-3 (all versions), CR-10 series, CR-6 SE, Ender-5, Sermoon series
Material: Aviation Aluminum Alloy
Color: Silver (Anodized)
Inner Diameter (Bore): 5mm to 8mm
Outer Diameter (OD): 20mm
