Research Article

An Improved Algorithm for Calculating Friction Force and Torque in Involute Helical Gears

Table 1

Specifications of helical gear pair for sample I.

Item Pinion Gear

Addendum circle diameter (mm)57.226277.5462
Pitch circle diameter (mm)53.3473.66
Number of teeth2129
Rotational speed (Hz)3021.72
Base width (mm)14.986
Helix angle (°)40°
Pressure angle (°)14.5°
Transverse contact ratio1.4146
Axial contact ratio1.5758
Total contact ratio2.9905
Applied torque (N·m) 29.1