HTM7 Gear Tooth Form

HTM7 Gear Tooth Form

A bench top base plate contains all elements for this experiment. Three gears are located onto the base plate. A large gear and small gear mesh together and can be rotated to produce analysis of ratios. A third gear is removable to allow students to review its tooth form, pitch circle diameter (PCD) and other key geometry of a tooth form. The apparatus also explains the form of an involute curve and how this is used to create a gear tooth profile. To help describe what an involute curve is, paper can be placed into the apparatus and an involute curve drawn.

A set of vernier calipers is provided to allow the removable gear to be measured to help give a practival analysis of the gear form.

The whole unit is attached to a single base plate which can be wall mounted if required, labels are used on the unit to help clearly explain gear theory.

A comprehensive instruction manual for lecturer and student, giving full details on apparatus assembly and operation as well as example results. All necessary assembly and operational tools are provided.

HTM7 Gear Tooth Form
  • Wall or bench mounted apparatus for showing basic gear theory and explaining involute curves
  • Large (Mod 4) gears, allowing clear representation of gear theory
  • Includes vernier callipers for measuring gear geometry of removable gear
  • Large gear: 50 tooth, Module 4, 200mm PCD
  • Small gear: 18 tooth, Module 4, 72mm PCD
  • Removable gear module 12.5
  • Comprehensive instruction manual provided
  • 2 year warranty
  • Experimental determination of shape and construction of an involute curve
  • Explanation of Gear Form
  • Explanation of Gear Ratios
  • Explanation of Gear Modules
  • Explanation of Gear Trains and Rotational Direction