Axle Drive

Axle Drive

 

a mechanism used in motor vehicles to transfer and increase the torque from a drive shaft to a vehicle’s powered wheels and, consequently, to increase its tractive force.

An axle drive transmits the rotation of a drive shaft through an angle of 90° to semiaxles. Most axle drives employ single or double gears and pinions. In a single gear and pinion unit the rotation is transferred from a small bevel gear to a large one. In addition to the bevel gear and pinion, whose axles are mutually linked, some passenger vehicles and a number of trucks employ a hypoid gear. In a double gear and pinion unit the rotation is transmitted through two pairs of pinions: the rotation of a small bevel pinion is transmitted through a large bevel gear and on from a small cylindrical gear to a large cylindrical gear. A double gear and pinion unit may be used to obtain a high gear ratio from a comparatively small axle drive since two pairs of gears are meshed. Some trucks have more complex axle drive featuring two gear ratios and a mechanism for shifting between them.

References in periodicals archive ?
Yet despite the craze for tall, upright vehicles with twin axle drive, not everyone wants or can afford a big off-roader when 99.
4-litre D5 turbo diesel producing 215bhp, while the rear axle features Electric Rear Axle Drive (ERAD) in the form of an electric motor producing 70bhp.
It debuts alongside the Cayenne S Hybrid, the first production hybrid in the history of Porsche, and the 911 GT3 R Hybrid, which is the first racing car from the Stuttgart marque with electric front axle drive and a flywheel energy reservoir.
It might have electric rear axle drive and is likely to be lighter and far more fuel efficient than anything we've seen before from Land Rover.
The car features an electr cal front axle drive with two electric motors supplementing a four-litre 'boxer' engine at the rear to provide four wheel drive.
0-litre turbodiesel unit combined with an electric rear axle drive set up at the back.
The other technologies that the company will be introducing include e-terrain technology, diesel-electric hybrid models and electric rear axle drive.
The concept's integrated Electric Rear Axle Drive (ERAD) would allow LRX to use electric drive alone at lower speeds while retaining full and even improved 4x4 ability in tough conditions.
Water or mud can cause the axle drive propeller shafts, steering axle shafts, power steering hydraulic cylinder and marine drive propeller shafts to lose lube.
Likewise, the rear axle drive unit is connected to the rear subframe by rubber isolators and is equipped with a dynamic damper that mitigates propeller-shaft and drive-shaft vibration.
Third-party tests show that when compared with traditional designs, Watling's Rear Axle Drive (RAD) technology delivers: