Machine design Basics - I - Shaft, Bearings & Gears

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

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

Machine design Basics - I - Shaft, Bearings & Gears udemy course

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

Machine design is a large subset of study under mechanical engineering design which includes design of common components used in machines.

This is a mega-course of 3 courses in 1 which  covers multiple aspects of design of Shafts and  elements which are generally mounted it - Bearings and Gears.

It 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.