12JSDX240T-1701112-2 Gear parameters of the second shaft third gear 30/40 teeth

• Number of teeth: The number of teeth of this gear is 30/40 teeth. This tooth number design enables a specific transmission ratio change during the gear shifting process, thereby meeting the vehicle's speed and torque requirements under different driving conditions.
• Module: The module is an important parameter that determines the size and load-bearing capacity of the gear. Although the specific module value is not clearly given, in general, for this type of gear used in heavy-duty vehicle gearboxes, the module will be relatively large to ensure that the gear has sufficient strength and rigidity to withstand large loads.
• Pressure angle: Under normal circumstances, the pressure angle of automotive gearbox gears is mostly 20°. The selection of this angle is conducive to ensuring the meshing perforce and transmission efficiency of the gears, making the gears more stable and reliable during operation.
• Helix angle: The existence of the helix angle allows the gears to gradually enter and exit the meshing state during meshing, thereby improving the smoothness of the meshing and reducing noise. For the 12JSDX240T-1701112-2 second shaft third gear, its helix angle is also optimized and determined according to the overall design and perforce requirements of the gearbox.
 

12JSDX240T-1701112-2 Second shaft third gear 30/40 teeth function and role

{Speed ​​shifting function:} As a key component in the gearbox, the second shaft third gear changes the transmission ratio by meshing with other gears during the vehicle shifting operation, realizing the switching of different speed gears of the vehicle. When the vehicle needs to accelerate or climb, the engine torque can be effectively amplified by shifting to this gear, thereby providing greater driving force for the vehicle.
{Power transmission:} Responsible for smoothly and efficiently transmitting the power generated by the engine to the vehicle's drive shaft, thereby driving the vehicle's wheels to rotate. In the process of power transmission, factors such as gear accuracy, strength and meshing perforce directly affect the efficiency and reliability of power transmission.