Mechanical Engineering Exam > Mechanical Engineering Questions > In spur gears, the circle on which the involu...
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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 c ircle
- d)adden dum circle
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
In spur gears, the circle on which the involute is generated is called...
Pitch Circle in Spur Gears
Pitch circle is an important term used in the context of spur gears. It refers to the imaginary circle that intersects with the teeth of the gear. The pitch circle is used to calculate the gear ratio, tooth profile, and other important parameters of the gear. In this article, we will discuss the pitch circle in detail.
Definition
The pitch circle is the circle on which the involute gear tooth profile is based. It is an imaginary circle that intersects with the teeth of the gear. The diameter of the pitch circle is the reference diameter of the gear, which is used to calculate the gear ratio, tooth profile, and other important parameters of the gear.
Importance
The pitch circle is an important concept in gear design because it helps to determine the geometry of the gear teeth. The distance between the centers of two gears is called the pitch distance, and it is equal to the sum of the pitch diameters of the two gears. The pitch circle is also used to calculate the pitch angle, which is the angle between the tangent to the pitch circle and the axis of the gear.
Calculation
The pitch circle diameter (P.C.D) is calculated using the following formula:
P.C.D = N x M
where N is the number of teeth on the gear, and M is the module (size) of the gear.
The pitch circle diameter is also related to the outside diameter (O.D.) and the root diameter (R.D.) of the gear:
O.D. = P.C.D + 2 x addendum
R.D. = P.C.D - 2 x dedendum
where addendum is the distance between the pitch circle and the top of the tooth, and dedendum is the distance between the pitch circle and the bottom of the tooth.
Conclusion
In conclusion, the pitch circle is an imaginary circle that intersects with the teeth of the gear. It is an important concept in gear design because it helps to determine the geometry of the gear teeth. The pitch circle diameter is used to calculate the gear ratio, tooth profile, and other important parameters of the gear.
Pitch circle is an important term used in the context of spur gears. It refers to the imaginary circle that intersects with the teeth of the gear. The pitch circle is used to calculate the gear ratio, tooth profile, and other important parameters of the gear. In this article, we will discuss the pitch circle in detail.
Definition
The pitch circle is the circle on which the involute gear tooth profile is based. It is an imaginary circle that intersects with the teeth of the gear. The diameter of the pitch circle is the reference diameter of the gear, which is used to calculate the gear ratio, tooth profile, and other important parameters of the gear.
Importance
The pitch circle is an important concept in gear design because it helps to determine the geometry of the gear teeth. The distance between the centers of two gears is called the pitch distance, and it is equal to the sum of the pitch diameters of the two gears. The pitch circle is also used to calculate the pitch angle, which is the angle between the tangent to the pitch circle and the axis of the gear.
Calculation
The pitch circle diameter (P.C.D) is calculated using the following formula:
P.C.D = N x M
where N is the number of teeth on the gear, and M is the module (size) of the gear.
The pitch circle diameter is also related to the outside diameter (O.D.) and the root diameter (R.D.) of the gear:
O.D. = P.C.D + 2 x addendum
R.D. = P.C.D - 2 x dedendum
where addendum is the distance between the pitch circle and the top of the tooth, and dedendum is the distance between the pitch circle and the bottom of the tooth.
Conclusion
In conclusion, the pitch circle is an imaginary circle that intersects with the teeth of the gear. It is an important concept in gear design because it helps to determine the geometry of the gear teeth. The pitch circle diameter is used to calculate the gear ratio, tooth profile, and other important parameters of the gear.
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Community Answer
In spur gears, the circle on which the involute is generated is called...
I think it's base circle..from where involute profile generated..
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Question Description
In spur gears, the circle on which the involute is generated is called thea)Pitch circle b)clearance circle c)Base c ircle d)adden dum circle Correct answer is option 'A'. 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 In spur gears, the circle on which the involute is generated is called thea)Pitch circle b)clearance circle c)Base c ircle d)adden dum circle Correct answer is option 'A'. 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 In spur gears, the circle on which the involute is generated is called thea)Pitch circle b)clearance circle c)Base c ircle d)adden dum circle Correct answer is option 'A'. Can you explain this answer?.
In spur gears, the circle on which the involute is generated is called thea)Pitch circle b)clearance circle c)Base c ircle d)adden dum circle Correct answer is option 'A'. 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 In spur gears, the circle on which the involute is generated is called thea)Pitch circle b)clearance circle c)Base c ircle d)adden dum circle Correct answer is option 'A'. 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 In spur gears, the circle on which the involute is generated is called thea)Pitch circle b)clearance circle c)Base c ircle d)adden dum circle Correct answer is option 'A'. Can you explain this answer?.
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