What is hub reduction in trucks?

The hub reduction consists of a cylindrical planetary gear with straight needle bearing gears, which gives small loss-es. The sun gear is mounted on the driveshaft and the driving power is transferred from it to the four planetary gears that are connected to the wheel hub.

What is a Scania hub reduction?

Scania offers a range of single reduction drive axles. Hub reduction is also available in two strengths. The R753 is a robust single gear with a ratio of 2.35 to keep the engine revs low at high cruising speed. High-cruising speed at low engine revs means short journey times and low fuel consumption.

What is the advantage of hub reduction?

This gives two advantages: ground clearance is increased, particularly beneath the low-slung differential housing of the main axles — and secondly, any hub reduction gearing allows the axle halfshafts to drive the same power but at reduced torque (by using higher shaft speed).

What is axle and hub?

A full-floating hub is supported by two axle bearings and a stub axle mounted to the chassis of the vehicle or the trailer. Axle hubs are devices used to attach wheels to the end of an axle or a trailer. The axle hubs also provide mounting locations for the braking components.

What is reduction hub?

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.

How do epicyclic gears work?

An epicyclic gear train (also known as a planetary gearset) consists of two gears mounted so that the center of one gear revolves around the center of the other. The combination of epicycle gear trains with a planet engaging both a sun gear and a ring gear is called a planetary gear train.

What is the major difference between a single and double reduction axle shaft arrangement?

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 final drive?

: the means for transmitting power from the propeller shaft to the rear axle in an automotive vehicle.

What are the limitations of sliding mesh gear box?

Disadvantages of Sliding Mesh Gearbox: 2 More effort is required to engage the gear as the gear has to be slided in sliding mesh gearbox unlike constant mesh gearbox where only dog clutch has to be slided for enagement of different gears.

How is a hub reduction axle different from a wheel hub?

In a hub reduction axle, on the other hand, the wheel hub and the axle have different rpm based on the hub gearing ratio. In trucks, a hub reduction axle provides additional gear reduction (or torque multiplication).

What can planetary hub reduction axles do for trucks?

Our drive technology for construction vehicles has reached the next level thanks to the new heavy-duty planetary hub reduction axle! A shorter gear ratio means that the remote-controlled trucks can be steered even more precisely through extremely difficult terrain.

How does hub reduction work on Volvo Trucks?

Hub Reduction Axle On Volvo FM 440 – How Hub Reduction Works On Volvo Trucks? If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

What is the hub reduction ratio for Meritor axles?

The hub reduction ratio available with 3 or 4 planets gear are 3.46:1 or 3.33:1. Ratio formula = 1+(Z Ring gear / Z Sun teeth) HUB REDUCTION RATIO GUIDE RING GEAR PLANETS GEARS SUN TEETH 4.9