Nema17 stepper motor with 300mm lead screw 17HS4401 T8 Screw Lead 400mm 500mm 8mm 42 Motor 42BYGH With Screw for 3d Printer. - AliExpress Home Improvement
Befenybay 2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling Diameter 20mm Length 25mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor(10x10mm): Amazon.com: Industrial & Scientific
TANGJIANCHENG Kupplung 2 mm/2,3 mm/3 mm/3,17 mm/4 mm/5 mm/6 mm, Messing, flexible Wellenkupplung für Motorgetriebe-Stecker (Innendurchmesser: 3,17 mm, 5 mm) : Amazon.de: Baumarkt
uxcell 3mm Bore 18mm Length Motor Tyre Coupling Joint Hex Coupler Silver Tone: Amazon.com: Industrial & Scientific