LDO-42STH48-2804AC-R NEMA 17 Round Shaft Motor

The LDO-42STH48-2804AC-R is a 1.8° NEMA 17 Super Power stepper motor with a standard 5 mm round shaft. Its 48 mm body, 420 mN·m holding torque and low-inductance winding make it a strong choice for VZBot, CoreXY and other high-load belt-driven motion systems.

The motor includes a detachable 1000 ±30 mm AWG24 cable with a PH-6 motor-side connector and JST XHP-4-compatible controller-side connector.

Key Features

420 mN·m Holding Torque

The 48 mm motor body delivers 4.2 kgf·cm of holding torque for demanding X/Y axes, CoreXY motion systems and other belt-driven applications.

2.8 A Low-Inductance Winding

Rated at 2.8 A per phase with 0.6 mH phase inductance, the motor supports responsive motion when paired with a properly configured stepper driver.

5 mm Round Output Shaft

The 24 ±0.5 mm round shaft accepts compatible 5 mm-bore pulleys, gears and couplers. Unlike a D-cut shaft, the round profile is suitable for applications using clamp-style hubs or correctly secured set-screw components.

Detachable 1 m Cable

The included 1000 ±30 mm four-wire cable uses UL1007 AWG24 conductors, a PH-6 motor connection and a JST XHP-4-compatible controller connection.

Suitable for:

• VZBot and compatible high-performance CoreXY builds
• Custom Voron-style and Cartesian motion systems
• High-load X/Y and belt-driven axes
• CNC machines, robotics and automation equipment
• Applications using 5 mm-bore pulleys, gears or couplers

Confirm the following before ordering:

• NEMA 17 mounting pattern
• 48 mm motor body clearance
• 24 ±0.5 mm shaft-length clearance
• Compatibility with a 5 mm round shaft
• Stepper driver current capability
• PH-6 and JST XHP-4-compatible cable connections

Installation Notes

• Confirm the round-shaft profile and 5 mm pulley bore before installation.
• Secure the pulley, gear or coupler using an appropriate clamp or set screw.
• Verify both coil pairs before connecting the motor to the driver.
• Configure current according to the driver’s RMS or peak-current convention.
• Provide adequate motor and driver cooling under high-load operation.

1 × LDO-42STH48-2804AC-R NEMA 17 Stepper Motor