Prusa i3 MK3 MK3S+ X-Axis Step Motor NEMA17 42-40 Motor 2 Phase 1.8° Shaft 20mm with 350mm/13.7inch Integrated Connecting Wire for Prus i3 MK2 MK52 MK3S X Axis 3D Printer Parts or CNC Machine

High-torque NEMA17 X-axis motor for Prusa i3 MK3S+ upgrade
✔️ NEMA17 bipolar 4-wire, 1.8° step, 20 mm size, 350 mm cable

This item is a direct replacement for the X-axis on Prusa i3 MK3/MK3S/MK3S+ printers. It’s a handy upgrade when you need reliable torque, smooth motion, and a ready-to-connect 350 mm integrated cable. Pack size: 1x motor per package.

✅ ✅ NEMA17 bipolar 4-wire motor with 1.8° step and 400 mN.m torque
✅ Integrated 350 mm four-pin wire for plug-in ease
✅ 42x40x20 mm compact size fits Prusa X-axis mounts
✅ Low self-inductance stator for better high-speed response
✅ Compatible with Prusa i3 MK2, MK3, and MK3S+ boards and drivers

💡 What is a pillow block bearing used for in 3D printer X-axis assemblies?

This handy guide explains the role these parts play in keeping the X-axis steady. - Improves shaft alignment and reduces wobble in compact printers - Provides stable support for smooth, repeatable motion - Works with standard 42x40 mm motors and four-pin wiring