Iverntech Nema 23 Stepper Motor 57x56mm Body 1.8 Stepper Angle 2.0A 2 Phase 4-Lead with 80cm Cable for 3D Printer, CNC Machine and Robotics: Amazon.com: Tools & Home Improvement
Sizing: stepper motor physical size - Novanta IMS
STEPPERONLINE 0.9deg Thin Nema 14 Stepper Motor Bipolar 0.5A 7Ncm/9.91oz.in Φ36x12.5mm 4-wires - Amazon.com