Description: Name: 42 stepper motor shock absorber / shock absorber ring Size: 52*52*5mm Front center hole distance: 43mm Reverse center hole distance: 43mm Inner hole diameter: 24.6mm Thickness: 5.5mm These dampers reduce the noise and vibration of the stepper motor. High quality anti-vibration shock absorber for 42 stepper motors. They play a very important role in reducing noise and vibration, thereby increasing print speed Package Includes: 1x stepper motor Vibration Damper Shock Absorber