WHEELING WHEELS (HELICAL GEARS)

the gear is the successor wheel or wheel that transmits the motion from the driving source to the next drive shaft,
but there is a type of gear that serves as an intermediate "idler gear"

helical gear is of two kinds: left or right angled with the most commonly used helix angle between 7 ° -23 °. for a pair of oblique gears the angle of the helix must be opposite and equal.

at the time this beveled gear is working an axial / thrust load but it can be quiet quieter and smoother between gear A and gear B its very smooth voice gear difference straight and gear (helical gears) are very different sounds more subtle helical gears, helical gears are able to accept a huge load.