Scania has introduced the newest iteration of its G-series gearboxes to pair with its most powerful engine yet, the 16 litre 770hp V8 engine. It has been explicitly developed to fit the Aero 770, and can handle 3800 Nm.
“It is basically about metallurgy, choosing more extreme steel qualities and applying technologies such as cog polishing and shot peening for increasing the hardening and the durability of certain vital components,” says development engineer at Scania R&D Mats Henriksson.
“We have also added extra oil channels for the most crucial parts, but that is all – the basic design of the G-series is very sturdy in itself.”
Scania says that one of the pros of the new gearboxes is a significant weight reduction compared to current gearboxes, due to its all-aluminium housings and smaller dimensions.
They also have lowered noise in order to meet future regulations. By using shaft brakes, Scania’s engineers have reduced the number of synchronisations to save space for wider cogs.
“The G-series and its features was something of a revolution at the time of the introduction, and it still is if you ask me,” says product manager Bo Eriksson.
“It offers all the customers values you can ask for while at the same time being flexible and fit for a broad palette of applications and operations of the kind where a lot of horsepower and torque are involved.
“Heavy-haulage prime movers for instance will definitely benefit from the G38. It is the ultimate addition when it comes to well-balanced performance steps in the Scania modular system.”
The new G-series gearboxes will also be available in heavy duty versions, with a wider planetary gear wheel.
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