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GATE Previous Year Questions: Classification of Gear, Machine Design Video Lecture - Topper Handwritten Notes & Videos for GATE ME - Mechanical Engineering

FAQs on GATE Previous Year Questions: Classification of Gear, Machine Design Video Lecture - Topper Handwritten Notes & Videos for GATE ME - Mechanical Engineering

1. What are the different types of gears based on their classification?
Ans. Gears can be classified into various types based on their design and application. Some common types of gears include spur gears, helical gears, bevel gears, worm gears, and rack and pinion gears.
2. How does the classification of gears affect their function?
Ans. The classification of gears determines their specific characteristics and performance. For example, spur gears are known for their simplicity and efficiency, helical gears provide smoother operation but generate axial thrust, bevel gears are used to transmit power between intersecting shafts at a right angle, worm gears offer high gear reduction ratios, and rack and pinion gears are used for linear motion applications.
3. What factors should be considered while selecting a gear type for a specific application?
Ans. Several factors need to be considered when selecting a gear type for a particular application. These include the required speed ratio, power transmission capacity, efficiency, noise level, backlash, operating conditions (such as temperature and lubrication), space constraints, and cost.
4. Can gears of different classifications be used together in a mechanical system?
Ans. Yes, gears of different classifications can be used together in a mechanical system. However, proper consideration should be given to ensure compatibility in terms of tooth profiles, module or diametral pitch, pressure angle, and other relevant parameters. In some cases, additional components such as gear reducers or adaptors may be required to achieve the desired gear meshing and power transmission.
5. What are the advantages and disadvantages of different gear classifications?
Ans. Each gear classification has its own set of advantages and disadvantages. For example, spur gears are simple and efficient but generate more noise and vibration compared to helical gears. Helical gears provide smoother operation but have lower efficiency due to axial thrust. Bevel gears are suitable for transmitting power between intersecting shafts, but they are more complex and costly to manufacture. Worm gears offer high gear reduction ratios but can have lower efficiency and higher backlash. Rack and pinion gears provide linear motion but may have limitations in terms of load capacity and precision.
76 videos|193 docs
76 videos|193 docs
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