Mechanical Engineering Exam > Mechanical Engineering Questions > In spur gears, the circle on which the invol...
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In spur gears, the circle on which the involute is generated is called the
- a)Pitch circle
- b)Clearance circle
- c)Base circle
- d)Addendum circle
Correct answer is option 'C'. Can you explain this answer?
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In spur gears, the circle on which the involute is generated is calle...
Pitch Circle
The correct answer is option 'C', the base circle. In spur gears, the circle on which the involute is generated is called the base circle. Here is an explanation of each term and why the base circle is the correct answer:
Pitch Circle
The pitch circle is an imaginary circle that represents the theoretical point of contact between two gears. It is the circle on which the pitch diameter is measured. The pitch diameter is the diameter of the pitch circle and is used in gear calculations and design.
Clearance Circle
The clearance circle is a circle that is tangent to the addendum circles of two meshing gears. It is used to ensure that there is enough clearance between the teeth of the gears to prevent interference during operation.
Addendum Circle
The addendum circle is a circle that represents the maximum radial distance from the pitch circle to the top of the gear tooth. It is used to determine the height of the tooth and is one of the key dimensions in gear design.
Base Circle
The base circle is the circle on which the involute is generated. The involute is a curve that is used to determine the shape of the gear tooth profile. The base circle is important because it defines the size and shape of the gear tooth and is used in gear calculations and design.
The involute curve is generated by unwrapping a string from the base circle while keeping it taut. The shape of the involute curve is such that it provides smooth and efficient engagement between the gear teeth, resulting in minimal wear and noise.
The base circle is used to determine the addendum and dedendum circles, which are important dimensions in gear design. The addendum circle represents the top of the gear tooth, while the dedendum circle represents the bottom of the gear tooth. These circles, along with the base circle, help determine the profile of the gear tooth and ensure proper meshing between gears.
In summary, the base circle is the circle on which the involute is generated in spur gears. It is an essential element in gear design and is used to determine the shape and dimensions of the gear tooth profile.
The correct answer is option 'C', the base circle. In spur gears, the circle on which the involute is generated is called the base circle. Here is an explanation of each term and why the base circle is the correct answer:
Pitch Circle
The pitch circle is an imaginary circle that represents the theoretical point of contact between two gears. It is the circle on which the pitch diameter is measured. The pitch diameter is the diameter of the pitch circle and is used in gear calculations and design.
Clearance Circle
The clearance circle is a circle that is tangent to the addendum circles of two meshing gears. It is used to ensure that there is enough clearance between the teeth of the gears to prevent interference during operation.
Addendum Circle
The addendum circle is a circle that represents the maximum radial distance from the pitch circle to the top of the gear tooth. It is used to determine the height of the tooth and is one of the key dimensions in gear design.
Base Circle
The base circle is the circle on which the involute is generated. The involute is a curve that is used to determine the shape of the gear tooth profile. The base circle is important because it defines the size and shape of the gear tooth and is used in gear calculations and design.
The involute curve is generated by unwrapping a string from the base circle while keeping it taut. The shape of the involute curve is such that it provides smooth and efficient engagement between the gear teeth, resulting in minimal wear and noise.
The base circle is used to determine the addendum and dedendum circles, which are important dimensions in gear design. The addendum circle represents the top of the gear tooth, while the dedendum circle represents the bottom of the gear tooth. These circles, along with the base circle, help determine the profile of the gear tooth and ensure proper meshing between gears.
In summary, the base circle is the circle on which the involute is generated in spur gears. It is an essential element in gear design and is used to determine the shape and dimensions of the gear tooth profile.
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Community Answer
In spur gears, the circle on which the involute is generated is calle...
Involute profile is generated on a fixed circle called base circle.
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In spur gears, the circle on which the involute is generated is called thea)Pitch circleb)Clearance circlec)Base circled)Addendum circleCorrect answer is option 'C'. Can you explain this answer?
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