New Holland WorkMaster 50 Service Manual page 288

Rear axle system - Powered rear axle
Powered rear axle - Overview
The rear axle assembly transfers drive from the transmission to the planet drive through a bevel pinion and crown
wheel coupling. The bevel gears are spiral type and are supported by tapered roller bearings.
The differential is fitted with four planetary and two side gears and mechanical lock. The differential lock is dog clutch
type and operated by foot pedal located below operator's seat at right hand side.
The planetary reduction gear set is controlled by the bevel pinion and crown wheel output half - shaft, which also
controls the brakes.
Planetary helps in improving traction and increasing brakes life. It also gives more ground clearance and it is sealed
against water and dust.
In this cascade arrangement half axle is fitted into two side gears which rotates the planetary gears through a ring
gear, resulting into reduction of speed, that turn is transferred to rear axle.
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