Hurst hybrid stepper motors offer many advantages over conventional stepper motor designs. With the 1.8° step angle, quality resolution can be achieved without external reduction. Rapid start, stop and reversal characteristics coupled with open loop operation make the Hybrid Stepper the motor of choice for many applications. This design provides high torque density which is desirable when space is a factor. The hybrid models are available in NEMA standard frame sizes of 17 and 23, with holding torque ranging up to 187 oz.-in. Standard windings are 4-phase, unipolar. All models offer class B insulation.
Features:

Higher Torques Than Variable Reluctance and Permanent Magnet Step Motors

Allows for Small Step Angles (Higher RPS)

Highly Accurate — Step Angle Error Is Small and Non-Cumulative