The Lewis form factor of gear tooth depends on

This question was previously asked in
BPSC Asstt. Prof. ME Held on Nov 2015 (Advt. 22/2014)
View all BPSC Assistant Professor Papers >
  1. the elastic modulus of the tooth
  2. the module
  3. the number of teeth
  4. the pitch circle diameter

Answer (Detailed Solution Below)

Option 3 : the number of teeth

Detailed Solution

Download Solution PDF

Explanation:

Lewis form factor for 20° full depth involute system is given by:

\(Y=0.154-\frac{0.912}{T}\)

where T = number of teeth.

Hence the Lewis form factor (y) is only depends upon the number of teeth.

Latest BPSC Assistant Professor Updates

Last updated on Jun 23, 2025

-> The Document Verification for BPSC Assistant Professor (Advt. No. 04/2025 to 28/2025) will be conducted between 7th July 2025 to 24th July 2025

-> The BPSC Assistant Professor Notification 2025 was released for 1711 vacancies under Speciality (Advt. No.04/2025 to 28/2025).

-> The recruitment is ongoing for 220 vacancies (Advt. No. 01/2024 to 17/2024).

-> The salary under BPSC Assistant Professor Recruitment is approximately Rs 15600-39100 as per Pay Matrix Level 11. 

-> The selection is based on the evaluation of academic qualifications &  work experience and interview.

-> Prepare for the exam using the BPSC Assistant Professor Previous Year Papers. For mock tests attempt the BPSC Assistant Professor Test Series.

More Design of Gears Questions

Get Free Access Now
Hot Links: rummy teen patti teen patti game online teen patti casino teen patti noble teen patti master new version