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If a reduction ratio of about 50 is required in a gear drive then the most appropriate gearing would be
- a)spur gears
- b)bevel gears
- c)double helical gears
- d)worm and worm wheel
Correct answer is option 'D'. Can you explain this answer?
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If a reduction ratio of about 50 is required in a gear drive then the ...
Reduction Ratio and Gear Types
Reduction ratio refers to the ratio of the number of teeth on the driven gear to the number of teeth on the driving gear. A reduction ratio of 50 means that the driven gear has 50 times fewer teeth than the driving gear. In this case, the most appropriate gearing would be worm and worm wheel.
Worm and Worm Wheel Gearing
Worm and worm wheel gearing is a type of gearing in which a worm (a type of screw) meshes with a worm wheel (a type of gear). The worm has a helical thread that wraps around the circumference of a cylindrical shaft, while the worm wheel has teeth that mesh with the worm. The worm wheel is usually made of bronze or other soft metals, while the worm is made of steel or other hard metals.
Advantages of Worm and Worm Wheel Gearing
1. High Reduction Ratio: Worm and worm wheel gearing can achieve very high reduction ratios, making it suitable for applications where a large speed reduction is required.
2. Compact Design: Worm and worm wheel gearing has a compact design, which allows for the use of smaller and lighter components.
3. Self-Locking: Worm and worm wheel gearing is self-locking, which means that the gear cannot be turned by the worm when the drive is stopped. This makes it ideal for applications where there is a need for holding a load in a fixed position.
4. Smooth Operation: Worm and worm wheel gearing operates smoothly and quietly, making it ideal for applications where noise and vibration are a concern.
Disadvantages of Worm and Worm Wheel Gearing
1. Lower Efficiency: Worm and worm wheel gearing has a lower efficiency compared to other types of gearing, which means that more power is lost in the form of heat.
2. Limited Speed: Worm and worm wheel gearing has a limited speed range, which makes it unsuitable for high-speed applications.
Conclusion
In conclusion, if a reduction ratio of about 50 is required in a gear drive, the most appropriate gearing would be worm and worm wheel. This type of gearing has a high reduction ratio, a compact design, is self-locking, and operates smoothly. However, it has a lower efficiency and a limited speed range.
Reduction ratio refers to the ratio of the number of teeth on the driven gear to the number of teeth on the driving gear. A reduction ratio of 50 means that the driven gear has 50 times fewer teeth than the driving gear. In this case, the most appropriate gearing would be worm and worm wheel.
Worm and Worm Wheel Gearing
Worm and worm wheel gearing is a type of gearing in which a worm (a type of screw) meshes with a worm wheel (a type of gear). The worm has a helical thread that wraps around the circumference of a cylindrical shaft, while the worm wheel has teeth that mesh with the worm. The worm wheel is usually made of bronze or other soft metals, while the worm is made of steel or other hard metals.
Advantages of Worm and Worm Wheel Gearing
1. High Reduction Ratio: Worm and worm wheel gearing can achieve very high reduction ratios, making it suitable for applications where a large speed reduction is required.
2. Compact Design: Worm and worm wheel gearing has a compact design, which allows for the use of smaller and lighter components.
3. Self-Locking: Worm and worm wheel gearing is self-locking, which means that the gear cannot be turned by the worm when the drive is stopped. This makes it ideal for applications where there is a need for holding a load in a fixed position.
4. Smooth Operation: Worm and worm wheel gearing operates smoothly and quietly, making it ideal for applications where noise and vibration are a concern.
Disadvantages of Worm and Worm Wheel Gearing
1. Lower Efficiency: Worm and worm wheel gearing has a lower efficiency compared to other types of gearing, which means that more power is lost in the form of heat.
2. Limited Speed: Worm and worm wheel gearing has a limited speed range, which makes it unsuitable for high-speed applications.
Conclusion
In conclusion, if a reduction ratio of about 50 is required in a gear drive, the most appropriate gearing would be worm and worm wheel. This type of gearing has a high reduction ratio, a compact design, is self-locking, and operates smoothly. However, it has a lower efficiency and a limited speed range.
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If a reduction ratio of about 50 is required in a gear drive then the most appropriate gearing would bea) spur gearsb) bevel gearsc) double helical gearsd) worm and worm wheelCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about If a reduction ratio of about 50 is required in a gear drive then the most appropriate gearing would bea) spur gearsb) bevel gearsc) double helical gearsd) worm and worm wheelCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If a reduction ratio of about 50 is required in a gear drive then the most appropriate gearing would bea) spur gearsb) bevel gearsc) double helical gearsd) worm and worm wheelCorrect answer is option 'D'. Can you explain this answer?.
If a reduction ratio of about 50 is required in a gear drive then the most appropriate gearing would bea) spur gearsb) bevel gearsc) double helical gearsd) worm and worm wheelCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about If a reduction ratio of about 50 is required in a gear drive then the most appropriate gearing would bea) spur gearsb) bevel gearsc) double helical gearsd) worm and worm wheelCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If a reduction ratio of about 50 is required in a gear drive then the most appropriate gearing would bea) spur gearsb) bevel gearsc) double helical gearsd) worm and worm wheelCorrect answer is option 'D'. Can you explain this answer?.
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