Baishan BS57HB76-03 2-Phase Hybrid Stepper Motor

The BAISHAN BS57HB76-03 is a 2‑phase hybrid stepper motor housed in a NEMA 23 class frame (57 mm) that delivers precise incremental positioning with a 1.8° step angle. It operates at a rated voltage of 3.0 V DC and typical current of ~3.0 A per phase in a 2‑phase bipolar configuration, offering a holding torque of ~18 kg·cm (model class dependent). Electrical characteristics include ~1 Ω per phase resistance and ~3.5 mH per phase inductance, with an insulation class of B and a weight around 1.1 kg. The shaft is a single shaft, variant dependent, either keyed or flat. This motor converts electrical pulses into controlled mechanical rotation and is commonly used in CNC machines, automation systems, and motion control equipment, including CNC equipment, 3D printers, automated assembly machines, labeling systems, and other industrial positioning setups where controlled low‑speed torque and precise positioning are required. It is typically installed in OEM automation systems for indexing, feed control, and actuator positioning in continuous‑duty manufacturing environments. For replacements in the same torque class, look to similar NEMA 23 hybrid stepper offerings from manufacturers such as Lead Shine, Oriental Motor PK series, and Stepper Online.