Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
108 views
in General by (72.6k points)
closed by
In which one of the following tooth profiles, does the pressure angle remain constant throughout the engagement of teeth?
1. Cycloidal 
2. Involute 
3. Conjugate 
4. Epicycloid 

1 Answer

0 votes
by (121k points)
selected by
 
Best answer
Correct Answer - Option 2 : Involute 

Concept:

Pressure angle - The angle between the pressure line and common tangent to the pitch circle is called Pressure angle or angle of obliquity.

Involute profile

It is defined as the locus of the point on the line which rolls without slipping on the fixed circle.

In involute gears, the pressure angle, from the start of the engagement of teeth to the end of the engagement, remains constant. It is necessary for smooth running and less wear of gears.

But in cycloidal gears, the pressure angle is maximum at the beginning of engagement, reduces to zero at pitch point, starts increasing and again becomes maximum at the end of engagement. This results in less smooth running of gears.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...