24 Stepper Motor – 1.8° Step Angle, 60mm Frame, 400oz_in Torque, 4A Rated Current

Overview:
The 24HB39-4004D is a high-torque stepper motor designed for precision motion control in compact industrial setups. With a 60×60×100mm frame and 1.8° step angle, it delivers 400oz-in holding torque at 4A rated current, balancing power and efficiency. Featuring 0.9Ω phase resistance and 3.8mH inductance, the motor ensures stable operation. Its D-cut shaft (8mm/6.35mm diameter, 21mm length) and 4-lead wire configuration enable secure mechanical coupling and simplified electrical integration.

Key Features:
1.8° Step Angle: Enables precise positioning (200 steps/rev).
400oz-in Holding Torque: Suited for medium-duty CNC, 3D printers, and automation systems.
4A Rated Current: Optimized for continuous operation with low heat generation.
60mm Frame Size: Compact 60×60×100mm design for space-constrained applications.
D-cut Shaft: 8mm & 6.35mm diameter with 21mm length for secure belt/pulley coupling.
4-Lead Wire Configuration: Simplifies connection to standard 2-phase drivers.
Electrical Specs: 0.9Ω phase resistance, 3.8mH inductance for stable power conversion.

Applications:
Perfect for desktop CNC routers, 3D printing extruders, laser cutters, packaging machinery, and small robotic arms. Ideal for scenarios requiring reliable torque in confined spaces, such as electronics manufacturing, medical devices, or automated test equipment.

Mechanical Specifications:
Frame Size: 60×60×100mm
Shaft Type: D-cut
Shaft Dimensions:
Diameter: 8mm & 6.35mm
Length: 21mm
Torque: 400oz-in (holding torque)

Electrical Specifications:
Rated Current: 4A per phase
Phase Resistance: 0.9Ω
Inductance: 3.8mH
Step Angle: 1.8° (200 steps/rev)
Wire Configuration: 4-lead (2-phase)

Environmental Specs:
Operating Temperature: 0°C – 50°C
Humidity: 40–90% RH (non-condensing)
Avoid: Dust, oil, moisture, and corrosive gases.