Machine element design Basics - I - Shaft, Bearings & Gears

Learn about the fundamentals of design of common rotating machinery components in mechanical design engineering

Course Summary

The course is a deep dive into the Shaft design process and selection also deals with the Bearing selection in detail . Then moving to a deep dive in Gear design with practical CAD design of gears based on input specifications.
Topics covered:  
Shaft and layout design  
- Basics of simple power transmission system design  
- Loads and Load cases  
- Materials and manufacturing of shafts  
- Basics of Shaft design  
- Layout scheme and General lay outing  
- Keys and key ways  
- Set screws and collars  
- Splines and Serrations design selection based on standards  
- Interference and press fits  
- Stress analysis - method of analysis  
- Incorporation of stress concentration factors  
- Notch sensitivity in fatigue  
- Endurance limit and modifying factors  
- Deflection and Slope  
- Stress due to interference fits  
- Torque capacity of press fits  
- Solid vs Hollow shafts and Couplings  

Bearing Selection  
- Factors which drive Bearing selection  
- Contact stresses study  
- Bearing life equation derivation and L10 life  
- Modified Life - Factors  
- Contamination factor, viscosity ratio  
- Determining equivalent bearing load  
- Mounting scheme  
- Example to go through the selection process  

Gear design  
- Conjugate action in Gears  
- Involute profile construction  
- Spur gear design basics and CAD workflow (fusion 360)  
- Contact Ratio and Interference  
- Basics of Helical gear design and CAD workflow (fusion 360)  
- Basics of Bevel gear design and CAD workflow (fusion 360)  
- Basics of Worm gear design and CAD workflow (fusion 360)  
- Force analysis of spur gear  
- Force analysis of Bevel gear  
- Force analysis of Helical gear  
- Force analysis of Worm gear  
- Stress calculations for standard tooth profile  
- Pitting equations  

The course is intended to be a library of knowledge regarding machine components and will be expanded further in the future  with more examples and case studies.

Course Curriculum

Mufaddal Rasheed

Mufaddal Rasheed is a mechanical design engineer , inventor and online entrepreneur working towards building a comprehensive knowledge resource base for students and  mechanical design professionals with focus on building skills and  knowledge to design mechanical products

The goal  is to build a comprehensive knowledge eco-system for mechanical design engineers and aspirants which would prepare an individual for engineering innovation and advance their careers in terms of knowledge. 

Experienced professional with 7+ years experience in Automotive product development designing chassis and suspension systems and being part of multiple projects from concept to production. 

He is passionate about mechanical design and innovation and writes regularly on Quora with a Top writer badge.

Core belief is that engineering is a lifelong learning process and for a designer  it is "the more you know the better you design"

Working towards developing an alternate solution to the problems of engineering education and upskilling for economic growth. 

John Smith


Highly Recommended Course. Easy to Understand, Informative, Very Well Organized. The Course is Full of Practical and Valuable for Anyone who wants to Enhance their Skills. Really Enjoyed it. Thank you!!

Course Pricing

  • Machine element design part 1
  • $30 USD

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  • Access to course for 36 months
  • Support through mail