PM25S-048-USU7

The PM25S-048-USU7 is a compact PM (permanent-magnet, can-stack) stepper motor about 25 mm in diameter. Its 048 code means 48 full steps per revolution, so each step turns the shaft by 7.5°. Motors of this size are used in office equipment, gauges and small automation, and they are easy to control from an Arduino or ESP32 with a low-cost driver.

PM25S-048-USU7 Specifications

• Motor type: 2-phase permanent-magnet (PM) stepper motor
• Body diameter: about 25 mm (from the PM25 code)
• Full steps per revolution: 48
• Step angle: 7.5° full step, 3.75° in half-step mode
• Variant code: USU7

PM25S-048-USU7 Applications

• Gauge needles, pointers and indicators
• Small XY or rotary positioning stages
• Camera sliders and pan mechanisms
• Learning stepper control in STEM and university labs

What's in the Box

• 1 × PM25S-048-USU7 stepper motor

Tip: Start with a slow step rate and increase it gradually; if the motor buzzes without turning, the steps are too fast or the coil order is wrong. Use a driver such as the DRV8833 for 4-wire motors or a ULN2003 for 5- or 6-wire motors.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.