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Axle Drive

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Driveshaft, differential and the applicable supports

In order for the power getting to the wheel, different component groups of the vehicle are active for that. Elementary components are the driveshaft/propeller-shaft, the differential and their supports.

This is how driveshaft and differential work

The driveshaft/propeller-shaft takes over transporting power from the transmission to the wheels and is therefore part of the drivetrain. Most times it consists of a king-pin mounted at the wheel which has a constant velocity joint. The latter maintains proper steering movement on the steered axles and at the same time limits the turning circle.

While the joint attached to the transmission commonly absorbs axial displacements during spring compression, the joint at the wheel is commonly a fixed joint which only compensates angular changes. The universal joints of the driveshaft/propeller-shaft are protected by sleeves, filled with grease, consisting of either rubber or TPE. Torn sleeves are therefore a neuralgic damage symptom, water and dirt can easily access the lubricated surfaces and joints can receive damage.

The differential on the other hand is a rotating wheel and is as a rule mounted between the two wheels of an axle, whereas the wheel of the propelling planetary stage is connected to the impeller support. With transverse mounted engines the helical geared transmission applies, while with lengthwise mounted engines bevel gearing is used. The so called hypoid gearing is used in connection with drive shafts/propeller shafts. The differential turns both wheels with its shafts at equal torque, regardless if they don’t turn equally fast when going through turns. If one of the wheels remains at a complete standstill the other will in consequence turn twice as fast. This is created when starting up on a slippery surfaces and is of common occurrence in the wintertime.  

Special version locking differential

A special version is the locking differential, it eliminates this occurrence that and equalizing effect of the propeller shafts is initiated by decisive friction. Power is only delivered partially to the wheel. The rest is done by conversion into heat. A support is provided for a safe and sufficient installation. It mostly consists of rubber. Common mounting positions are either on top or below the differential.

Replacements for worn components, whether driveshafts/propeller-shafts, placement of the differential and much more can be had at rexbo Autoteile online.