Gears & Pulleys Crossword

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Across
  1. 5. In a worm gear system the direction of transmission is not _____________
  2. 6. A gear system has a mechanical advantage of 0.1. What is the velocity ratio of the system?
  3. 9. Pulley Output Diameter/Pulley Input Diameter
  4. 10. A pair of gears stacked that rotate on the same axis.
  5. 12. Type of cylindrical gear with teeth parallel to the axis of rotation
  6. 14. A large output gear rotates more ________ compared to a small input gear
  7. 15. Output Speed/Input Speed (8.5)
  8. 17. Bevel gears change the direction of drive in a gear system by ________ degrees
  9. 18. Output speed of pulley system in Fig. 3 if input speed = 90 rpm
  10. 19. A type of pulley belt which cannot slip off the pulley wheels (typically narrower and useful in small spaces)
  11. 20. Two gears, A and B, are connected together. If A rotates in a clockwise direction, what direction does B rotate in?
  12. 21. The only type of pulley belt which can maintain a constant velocity ratio.
  13. 22. Velocity ratio of gear system in Fig. 1
  14. 23. Output speed of gear system in Fig. 1 if input speed = 10 rpm
  15. 24. Pulley systems are _________ than chain driven sprocket gear systems.
  16. 26. Another word for “input” gear
Down
  1. 1. A gear system that turns rotational motion into linear motion (e.g. in a car steering mechanism) (4,3,6)
  2. 2. Mechanical advantage of pulley system in Fig. 3
  3. 3. Pulley Input Diameter/Pulley Output Diameter
  4. 4. Another word for “output” gear
  5. 7. Output Teeth/Input Teeth (10,9)
  6. 8. A gear used to ensure that the output gear rotates in the same direction as the input gear.
  7. 10. A gear system where two directly connected gears rotate in the same direction (5,6,8)
  8. 11. The type of gear system used in a hand whisk.
  9. 13. The rotational velocity of gears is measured in ________ ___ __________ (11,3,6)
  10. 16. Gear D’s velocity in Fig. 2 (Gear A’s speed is 120 rpm)
  11. 19. Input Teeth/Output Teeth (8,5)
  12. 23. A gear system has an overall velocity ratio of 4. If the input velocity is 10 rpm, what is the output velocity?
  13. 25. The type of gear system used in a guitar tuning mechanism