• Model  :  JK42HS40-1704-13A
• Compatible With  :  A4988, DRV8825, TMC2208, 3D Printers, CNC Machines
• Holding Torque  :  7.2 kg-cm
• Mounting Hole size  :  M3
• Operating current  :  1.7 A/Phase
• Phase  :  2
• Shaft Type  :  Round Shaft
• Step Angle  :  1.8°
• Type  :  Stepper Motor
• Voltage  :  3.1 V
• Weight  :  300 grams
• Material  :  Metal Body, Copper Coils
• Dimensions (LxWxH)  :  65 x 42 x 40 mm

Features:

• High holding torque of 7.2kg-cm for stable performance.
• 1.8° step angle for precise control and smooth rotation.
• Rated current of 1.7A per phase, suitable for most 3D printers and CNC systems.
• Durable construction with high-quality bearings for extended life.
• Compatible with A4988, DRV8825, TMC2208, and other common drivers.
• 5mm round shaft with 40mm body length for easy mounting.
• Ideal for robotics, automation, and precision linear actuators.
• Low noise and vibration during operation.

The NEMA17 JK42HS40-1704-13A Stepper Motor is a high-precision bipolar stepper motor designed for accurate motion control in 3D printers, CNC machines, robotics, and automation projects. With a holding torque of 7.2kg-cm and 1.7A phase current, it provides reliable performance with excellent torque stability and step accuracy. Its 1.8° step angle ensures smooth rotation and consistent micro-stepping, making it a popular choice among makers and engineers.

This motor features a 40mm body length and a 5mm round shaft, built with high-quality bearings and durable materials for long operational life. It operates efficiently with a standard 2-phase bipolar driver and is compatible with most stepper motor drivers such as A4988, DRV8825, and TMC2208. Ideal for precision positioning applications, this stepper motor ensures silent operation, stability, and consistent performance.