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