A New Design of the Universal Test Rig to Measure the Wear Characterizations of Polymer Acetal Gears (Spur, Helical, Bevel, and Worm)

Table 2

Helical gear specifications.

Parameters	Value
Module	3 mm
Number of teeth	26
Pressure angle	20°
Helix angle	15°
Helix type	Right hand
Face width	20 mm
Centre distance	81 mm