Description
- Pololu Stepper Motor: Bipolar, 200 Steps/Rev, 28×45mm, 4.5V, 0.67 A/Phase
- Ensures precision with 1.8° step angle
- Provides 950 g-cm holding torque
- Features 200 steps per revolution
- Offers versatile mounting with 5 mm shaft
- Supports multiple control interfaces
The Pololu Stepper Motor: Bipolar, 200 Steps/Rev, 28×45mm, 4.5V, 0.67 A/Phase is a NEMA 11-size hybrid bipolar stepping motor designed for precision and reliability. It features a 1.8° step angle, translating to 200 steps per revolution, which ensures accurate positioning and smooth operation. The motor operates with a current draw of 670 mA per phase at a voltage of 4.5 V, providing a holding torque of 950 g-cm.
This motor is equipped with four color-coded wires with bare leads, facilitating easy connection to control systems. It is compatible with a variety of control interfaces, including USB, TTL serial, I²C, RC, analog voltages, and quadrature encoder, when used with suitable controllers. The motor’s 5 mm-diameter output shaft allows for versatile mounting options, supported by two ball bearings for enhanced durability and performance.
Note: Ensure appropriate handling and connection to prevent damage or injury.
- 1x Pololu Stepper Motor: Bipolar, 200 Steps/Rev, 28×45mm, 4.5V, 0.67 A/Phase

- Dimensions: 28 x 28 x 45 mm
PDF File
- Shaft diameter: 5 mm “D”
- Steps per revolution: 200
- Current rating: 670 mA per coil
- Voltage rating: 4.5 V
- Resistance: 6.8 Ω per coil
- Holding torque: 950 g-cm (13 oz-in)
- Inductance: 4.9 mH per coil
- Lead length: 30 cm (12″)
- Output shaft supported by two ball bearings







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