KST-28B18-D-0002 NEMA 11 5-Phase Stepper Motor – 0.72° Step Angle, 2.0A, 0.05N·m Holding Torque, Compact 28mm Frame

The KST-28B18-D-0002 is a high-precision 5-phase stepper motor with a 28mm frame size (NEMA 11), engineered for compact motion systems requiring consistent accuracy and high resolution. Its 0.72° step angle ensures smooth and precise movement, making it suitable for applications such as medical instruments, semiconductor equipment, and miniaturized automation.

Rated at 2.0A current, the motor provides a holding torque of 0.05N·m, balancing power and efficiency for light-load applications. With a rotor inertia of 9 g·cm² and a motor length of just 32.7mm, it supports rapid response and minimal overshoot. The 5mm shaft diameter and 15mm axis length ensure compatibility with standard couplings, while the 110g total mass makes it ideal for systems where space and weight are critical.