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Auxiliary Box Drive Gear / High Speed Drive Gear For FAST Gearbox JS200T-1707030

The primary function of the transmission gears is to provide power output, enabling the transformation of the transmission ratio, that is, achieving gear shifting to achieve the purpose of speed variation.

Gear transmission is a major form of transmitting machine power and motion. Compared with mechanical transmissions such as belts, friction, and hydraulics, it has the characteristics of a wide power range, high transmission efficiency, accurate transmission ratio, long service life, and safety and reliability. Therefore, it has become an indispensable transmission component for many mechanical products. The design and manufacturing level of gears

Key dimension parameters
Outer teeth: 46 teeth (standard number of teeth for high-speed drive)
Internal spline: 18 standard involute internal splines, matching the main shaft of the auxiliary box
Net weight per unit: approximately 3.2kg
Rated torque: Rated load capacity 2000N・m, suitable for 420/460/500 horsepower trucks and dump trucks

Installation location: Front end of the main shaft of the Faoste 12-speed gearbox housing, located at the junction of the main and auxiliary boxes, and cooperating with the auxiliary box's reduction gears and synchronizers to form a high-low speed switching mechanism.
Power transmission logic
Low speed zone: The auxiliary box's synchronizer engages with the reduction gears, with a large speed ratio, suitable for climbing and heavy loads;
High speed zone: The auxiliary box's synchronizer slides backward, engaging with the drive gear of this 1707030 model, reducing the transmission ratio, allowing for high-speed cruising with fuel efficiency;