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Questions and Answers
What is the function of an idler gear?
What is the function of an idler gear?
- To change the speed and torque of rotating axles
- To maintain the direction of rotation between two other gears (correct)
- To connect two other gears
- To increase the gear ratio
What is the most common type of gear?
What is the most common type of gear?
- Idler gear
- Worm gear
- Spur gear (correct)
- Bevel gear
What does the gear ratio of 5 to 1 mean?
What does the gear ratio of 5 to 1 mean?
- The larger gear rotates 5 times faster than the smaller gear
- The smaller gear rotates 5 times faster than the larger gear
- It takes 5 turns of the smaller gear to get 1 turn of the larger gear (correct)
- It takes 1 turn of the smaller gear to get 5 turns of the larger gear
What is the purpose of putting bushings on the back side of a 1x16 beam when using a gear?
What is the purpose of putting bushings on the back side of a 1x16 beam when using a gear?
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What is the function of a worm gear?
What is the function of a worm gear?
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Study Notes
Gear Functions
- The idler gear is used to change the direction of rotation without changing the gear ratio.
Gear Types
- The most common type of gear is the spur gear.
Gear Ratio
- A gear ratio of 5 to 1 means that the output shaft rotates at 1/5 the speed of the input shaft, while the torque is multiplied by 5.
Gear Mounting
- Bushings are placed on the back side of a 1x16 beam when using a gear to provide a clearance fit for the gear's shaft, reducing friction and allowing for smoother rotation.
Worm Gear
- The worm gear is a type of gear that allows for high gear ratios in a small package, and is often used in applications where a high torque is required in a confined space.
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