This line of hybrid stepper motors has low detent torque to holding torque ratios, which serve to deliver smooth and quiet operation and the fine positioning capability required for microstepping. Their top-to-bottom insulation system, incorporating stator insulators and other components, enables the steppers to withstand internal temperatures up to 130°C. Robust design and rugged construction contribute to reliability and long service life. These hybrid steppers include three versions with step resolutions of 1.8° (200 steps per rev) in full-step mode. Holding torques (bipolar) of 779 oz-in., 1062 oz-in., or 1416 oz.-in. can be achieved, depending on motor type. All are available in standard NEMA34 mounting configuration.