Gear

•  

  Gear ratio = number of teeth on driven gear/ number of teeth on driver gear 
• • Driving Gear
  • Idler Gear
  • Driven Gear


  The type of gear system
• • Spur Gears
  • Helical Gears
  • Bevel Gears
  • Worm Gears
  • Rack and Pinion
  • Planetary Gears


  The types of gears
• Output speed = input speed / gear ratio