Speed-Torque Characteristics 57HS13 Companion Products : DM542 / DM556 Find many great new & used options and get the best deals for Harris - Above ground swimming pool pump # 152601 H1572728 ProForce 3/4 HP at the best online prices at ! Free shipping for many products 2 phase, NEMA 23 frame size 76 mm (2.99 inch) long 4.0 A phase current When selecting a motor,make sure the required torque falls with the particular curve. Cloudray Leadshine 573S15-L-18 3-Phase Nema23 Stepper Motor – Cloudray... Japanese Motors Leadshine 2-Phase Stepper Motor 57CM13 – Cloudray Laser Nema Stepper Motor Unipolar and bipolar half coil,because we're using less turns,doesn't give us great low speed torque,but because of the low inductance, holds the torque out to high speeds. RAYMACH grosir 203*254mm lensa Laser serat menandai Made with high quality materials including bearings and shaft made in Japanese Bipolar parallel also uses the full coil so it gives good low speed performance. And irs low inductance allows the torque to be held out to high speeds. Bipolar series uses the full coil so it gives very good low speed torque.