This is a 5V high torque 4 Phase stepper motor with more than 2000 steps per revolution. It has enough torque to move small robots. The motor can be connected with gear shaft and propeller.

Specifications:-

• High quality stepper motor
• Voltage: DC 5V
• Diameter: 25mm
• Step Angle: 5.625 x 1/64
• Reduction Ratio: 1/64
• Rated voltage ? 5VDC
• Number of Phase ? 4
• Speed Variation Ratio ? 1/64
• Stride Angle ? 5.625° /64
• Frequency : 100Hz
• DC resistance ? 50Ω±7%(25?)
• Idle In-traction Frequency : > 600Hz
• Idle Out-traction Frequency : > 1000Hz
• In-traction Torque  >34.3mN.m(120Hz)
• Self-positioning Torque >34.3mN.m
• Friction torque : 600-1200 gf.cm
• Pull in torque : 300 gf.cm
• Insulated resistance >10MΩ(500V)
• Insulated electricity power ?600VAC/1mA/1s
• Insulation grade ?A
• Rise in Temperature  <40K(120Hz
• Noise  <35dB(120Hz,No load,10cm)
• Model ? 28BYJ-48