What is the advantage of hub reduction axle?

One advantage of a hub reduction or planetary drive rear axle is that the input torque gets reduced twice. First in the differential centre and then through the planetary drive wheel ends. Another advantage, especially for trucks like this one that operate out of mines and quarries, is the high ground clearance.

What is the function of hub reduction?

Hub-reduction axles – also known as planetary axles – split the torque between the differential and the planetary gears in the wheel hubs. As the torque is spread over several gear cogs, it makes this design extremely strong and well-suited for extra-heavy-duty work.

What is a power divider on a Mack truck?

The power-divider cage distributes torque between the outer-cam and inner-cam using two rows of wedges. Mack’s proprietary inter-wheel power divider uses a cam mechanism which automatically distributes up to 75% of torque between slipping and non-slipping wheel.

How many axles does a Mack truck have?

Typically 6×4 (three axles, two driven) lift axles are available.

Why do manufacturers use hub reduction units?

The hub reduction should relieve stress on the power- train, increase traction force and reduce speed from the increase in tire size. The gears has been developed, with analysis to give the expected life and low weight. Requirements on size and packaging has been considered.

What is single reduction axle?

Single reduction axle has only one speed reducer to control the speed, while double reduction axle has a major speed reducer and a side speed reducing system.

What is Interwheel lock?

The inter-axle differential lock is used on vehicles with tandem rear axles. Differential lock is controlled by a lever or push-pull control valve on the instrument panel. This feature can be in only two positions—lock or unlock— as indicated.

What is a Mack Pinnacle?

The Mack Pinnacle is a series of heavy duty (Class 8) trucks produced by Mack Trucks. Introduced in 2006, the Pinnacle is the successor of the Mack Vision. Currently, the product line is sold in the United States and Canada; in Venezuela and Peru, the Pinnacle is marketed as the Mack Vision Elite.

Who makes Mack MP8?

Mack and Volvo will continue to make 11- and 13-liter engines. The Mack model numbers are MP7 and MP8, respectively. Navistar Inc. makes a 13-liter engine in-house and also uses a lot of Cummins engines.

Which axle configuration is most effective?

Explanation: The type of suspension fitted to a vehicle will influence its resistance to ‘roll-over’. Modern tri-axle semi-trailers fitted with single wheels on each side extend the tracking width available, making this the most stable configuration.