57mm Hollow Shaft Stepper Motor – High Precision Through Shaft Stepper for CNC & Automation

Product Overview

Our hollow shaft stepper motor (also known as through shaft stepper motors) are engineered for applications requiring precise motion control and flexible shaft configurations. With a customizable output shaft size, these motors are perfect for integrating into robotics, automation, CNC systems, and more. The hollow design allows for easy cable routing or shaft pass-through, enhancing versatility.

Key Features

• High torque output for robust performance
• Precision step angle for accurate positioning
• Compact and small design for space-constrained applications
• Compatible with encoders for enhanced feedback control
• DC operation with reliable insulation and temperature resistance

Technical Specifications

Based on the dimensional drawing and parameters provided, here are the key specifications for our hollow shaft stepper motors:

General Parameters

• Step Angle: 1.8° ± 5%
• Number of Phases: 2
• Phase Voltage: As per model (e.g., 3.8V, 4.8V)
• Phase Current: Rated current per model (e.g., 1.8A, 2.0A,2.8A)
• Phase Resistance: Specified per variant
• Phase Inductance: As per design
• Static Moment: High holding torque for stability
• Insulation Class: Standard or custom options
• Insulation Resistance: Meets industry standards
• Operating Temperature: Absolute temperature ratings ensure durability

Dimensions and Customization

• Shaft Sizes Available: 8mm hollow shaft, 10mm hollow shaft, 12mm hollow shaft, NEMA 17, NEMA 23
• Key Dimensions: Refer to the drawing (e.g., 47.14mm, 4-φ5.2 holes)
• Custom Output Shaft: Tailored to your requirements

Applications

These motors are widely used in:

• Robotics (e.g., joint control, actuator systems)
• Automation (e.g., conveyor systems, pick-and-place machines)
• CNC Machinery (e.g., spindle drives, linear actuators)
• Systems with Encoders (for closed-loop control)

Why Choose Our Hollow Shaft Stepper Motors?

Manufactured by SSS-Motors, our motors adhere to strict quality standards. With options for high torque, precision, and small form factors, they offer a reliable solution for diverse industrial needs. The design ensures easy installation and long service life, backed by professional support.

Technical Specifications

Frame Size	57mm (NEMA 23)
Step Angle	1.8° ±5%
Phase Resistance	0.8-1.0 Ω (depending on model)
Rated Current	2.8 A/phase
Holding Torque	1.26 N·m
Shaft Type	Through shaft / Hollow shaft (8mm–12mm options)
Insulation Class	Class B
Operating Temperature	-20°C ~ +50°C
Weight	Approx. 0.70 kg