In order to work properly, involute gears must meet precise geometrical specifications. Gear geometry includes tooth profile, pressure angle, pitch circle, clearance, and backlash. A gear's geometry ...

Some spare time recently got used-up designing a pair of involute gears – which, it transpires, is easy in principle, once certain almost-impossible-to-obtain facts have been gathered. There are ...

Tooth surface. The side of a gear tooth. Tooth profile. One side of a tooth in a cross section between the outside circle and the root circle. Involute. A tooth profile generated from the involute ...

Over the years, these dimensions were standardized ... Angle between a tangent to the involute tooth profile and the radius from the gear axis to the tangent point. Reference circle.