This high precision NEMA 23 Stepper motor has an integrated Planetary gearbox with a 4.25:1 gear ratio, the resolution reach 0.42° step angle. It's a good solution in applications that need very low rotation speeds and/or lots of torque.

Electrical Specification

* Manufacturer Part Number: 23HS22-2804S-PG4
* Motor Type: Bipolar Stepper
* Step Angle: 0.42°
* Holding Torque: 4.78Nm
* Rated Current/phase: 2.8A
* Phase Resistance: 0.9ohms
* Recommended Voltage: 24-48V
* Inductance : 2.5mH±20%(1KHz)

Gearbox Specifications

* Gearbox Type: Planetary
* Gear Ratio : 4.25
* Efficiency: 90%
* Backlash at No-load : * Max.Permissible Torque: 20Nm(2832oz-in)
* Moment Permissible Torque: 30Nm(4248oz-in)
* Shaft Maximum Axial Load: 100N
* Shaft Maximum Radial Load : 200N

Physical Specifications

* Frame Size: 60 x 60mm
* Motor Length: 56mm
* Gearbox Length: 43.5mm
* Shaft Diameter: Φ12mm
* Shaft Length: 30mm
* Key-way length: 20mm
* Key-way width : 4mm
* Number of Leads: 4
* Lead Length: 500mm
* Weight : 1.3kg

Connection:

Black(A+), Green(A-), Red(B+), Blue(B-)

Warning:

Make sure the motor connect to a constant current or chopper drive controller before you test motor.
Connecting the motor directly to a power supply will destroy the motor.