Precision Motors supplies Double Stacked Steeper Motor. Precision Motors manufactures a wide range of stepper and synchronous motors for various industrial applications. The Double Stacked Steeper Motor provides very high torque and is suitable for replacing the 1.8 degree steppers with minimal gearing. The Double Stacked Steeper Motor of model number D-48-42 is a bi-polar motor that provides very high torque and is suitable for replacing the 1.8 degree steppers with minimal gearing. The Double Stacked Steeper Motor is available with a diameter size of 42 mm.