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Gear Drive Basics

SKU: C-584Duration: 20 Minutes Certificate Included

PPV format perfect for individual users.

Get immediate access to this interactive eLearning course online. Must be used within 30 days, expires 48 hours after launch.

Great for in-person classroom training or as an alternative to DVD.

Includes printable documents and Convergence Video Player for Windows systems. Content expires after 1 year.

Ideal for corporate licensing and volume users who also need administrative tracking and reporting on training.

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Course Details


Training Time: 20 minutes

 Mobile Compatible

Based on: Industry Standards and Best Practices


  • English

Gears are mechanical devices, designed with teeth specifically shaped to minimize wear, vibration, and noise, while also maximizing a power transmission's efficiency. They are able to reverse the direction of rotation, change the speed of rotation, and transfer rotation to a different axis. This course will describe the purpose, types, performance, and applications of gears.

At the end of this module, you will be able to:

  • Define gear trains and ratios
  • Identify gearboxes and performance specifications
  • Differentiate between gear types, including spur, helical, bevel, worm, rack and pinion, and crown gears
  • Identify additional gear types, including herringbone, spiral hypoid, and planetary
  • Define clearance and backlash
  • Describe the role of right angle drives
  • Differentiate between worm drives, double enveloping worms, and double lead worms
  • Describe the complications of noise, wear, and friction loss

The following key questions are answered in this module:

What are the four types of gear trains?
The four types of gear trains are: simple, compound, reverted, and epicyclic.

What is the gear ratio?
The term gear ratio refers to the rates at which the last and first gears rotate. To figure this ratio, the number of teeth of the driven gear is divided by the mating teeth of the driving gear.

What are the most common gear types?
The most common gear types are spur, helical, bevel, worm, rack and pinion, crown, herringbone, spiral hypoid, and planetary.

What are typical problems that can occur with gears?
A number of problems can occur with gears, including noise, wear, and friction loss.

Below is a transcript of the video sample provided for this module:

Although all gears work similarly, they do come in different shapes, and configurations, and have different applications. The most common types of gears include spur, helical, bevel, worm, rack and pinion, crown, herringbone, spiral hypoid, and planetary.

Use the additional resources and links below to learn more about this topic:

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