205-01 Introduction to Gear Drives

When you complete this lesson, you will be able to describe and explain the function of a gear and define common terms utilized working with gears and gear drives.

• Explain the design and function of a gear
• Define the following:
  • Tooth
  • Pitch
  • Pitch circle
  • Pitch diameter
  • Circular pitch
  • Diametral pitch
  • Outside diameter
  • Root circle
  • Addendum
  • Dedendum
  • Clearance
  • Whole depth
  • Working depth
  • Flank of the tooth
  • Face of the tooth
  • Fillet
  • Face width
  • Backlash
  • Pressure angle
  • Top land
  • Bottom land
  • Crown
  • Gear-tooth ratio
  • Gear Hardness

205-02 Types of Gears

When you complete this lesson, you will be able to describe six common types of gears used in industrial facilities.

• Describe spur gears
• Describe helical gears
• Describe bevel gears
• Describe hypoid gears
• Describe worm gears
• Describe non-circular gears

205-03 Maintaining Gear Drives

When you complete this lesson, you will be able to analyze and troubleshoot common gear drive problems. You will also be able to explain factors affecting gear backlash and proper gear lubrication.

• Describe gear maintenance troubleshooting tips
• Explain factors affecting gear backlash
• Describe ways to measure and control backlash in gears
• Explain factors that influence proper lubrication of gear drives
• Describe various methods of lubricant application to gear drive systems
• Explain how to properly analyze failures in gear drives

205-04 Clutches

When you complete this lesson, you will be able to explain the purpose of clutches and identify the operating principles of common industrial clutch designs.

• Explain the purpose of a clutch
• Identify the types of mechanical clutches and their operating principles
• Explain the operating principles of electric clutches
• Identify the types of fluid clutches and their operating principles
• Explain the function of clutch brakes