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Introduction of 12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear
12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear, or gearbox, is an important part of a mechanical transmission system, mainly used to change the speed and torque between the engine output shaft and the drive wheels. It realizes the selection of different ratios through the meshing of a series of gears to adjust the speed and strength of the power transmission.12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear is not only used in automobiles but is also very common in industrial equipment, agricultural machinery, construction machinery, and other applications that require the adjustment of speed and torque.
Features and benefits of 12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear
Multi-stage gearing: Multiple gear options are available, allowing speed and torque to be optimized based on load conditions.
Increased Efficiency: Proper gear ratios maximize engine efficiency and reduce fuel consumption.
Enhanced Performance: Provides optimal power output under different operating conditions, improving the overall performance of the equipment.
Protect the engine: Reduce the burden on the engine by adjusting the gear ratio to avoid overloading.
Smooth operation: Using synchronizers and other technologies to ensure smooth gear shifting and reduce shock and noise.
Durability: High-quality materials and precision manufacturing processes ensure a long service life.

(12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear)
Specification of 12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear
This 12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear is a vital part. It fits specific heavy-duty transmissions. This gear transfers engine power directly. It meshes with other gears inside the gearbox. Its job is critical for starting the power flow.
The gear uses high-strength alloy steel. This material is very hard. It handles extreme pressure and shock loads. Heat treatment makes it even tougher. This ensures long life under tough conditions. It resists wear and surface damage well.
Precision machining defines its shape. The teeth profile is exact. This allows smooth engagement with mating gears. Noise and vibration stay low. Proper tooth contact spreads the load evenly. This prevents premature failure. The gear runs reliably.
Its inner bore matches the first shaft perfectly. A splined connection locks it securely. This prevents slipping under torque. The fit is tight and precise. Power transfer is efficient. No energy is lost here.
Specific dimensions are crucial. The outside diameter, tooth count, and face width are set. These match the gearbox design exactly. The pitch and pressure angle are standard. This ensures compatibility. Replacement is straightforward.
This gear endures the highest stresses. It faces the engine’s raw power first. Strength and durability are non-negotiable. Using the correct part matters. It guarantees gearbox performance and long service life. Keep your transmission running strong. Use this genuine first shaft gear.

(12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear)
Applications of 12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear
This 12JSDX240T-1707106-1 FAST 323KD0014 gear is the first shaft gear inside specific heavy-duty gearboxes. It’s the very first gear power hits after leaving the engine. This gear handles the engine’s raw power and starts the process of sending it through the transmission. Its job is crucial for getting the vehicle moving.
You find this gear in big trucks, construction machines, and other heavy equipment using compatible FAST gearboxes. These machines need strong parts to handle heavy loads and tough jobs. This first gear takes the initial stress every time the driver accelerates or shifts gears. It’s built tough for this reason.
The gear meshes directly with other gears in the transmission. This constant meshing under high pressure creates friction and heat. The gear’s material and heat treatment make it hard enough to resist wearing down quickly. Its teeth are precisely cut to engage smoothly with the next gear. This smooth engagement reduces grinding noise and prevents damage.
This gear sees a lot of action during gear changes. Drivers shift gears frequently, especially in stop-and-go traffic or on steep grades. Each shift puts stress on this first gear. A worn or damaged first shaft gear causes big problems. You might hear grinding noises when shifting. The transmission might slip out of gear. Power transfer becomes inefficient. The vehicle might struggle to move properly.
Replacing this gear requires opening the gearbox. It’s a major repair job. Using the correct replacement part is essential. The 12JSDX240T-1707106-1 FAST 323KD0014 gear is made to exact specifications for its specific gearbox model. Installing the wrong part leads to poor fit and early failure. Regular gearbox oil changes help this gear last longer. Clean oil reduces friction and wear on the gear teeth. Checking for metal particles in the oil can signal this gear is wearing out.
Company Introduction
Established in 2009, Gearbox Solutions Machinery Co.,ltd. focus on metal research and mining machinery spare parts. 2 factories over an area of 13,300 square meters, based on 100+ sets of equipment, our production capacity reaches 12000 Tons/Year. has passed ISO 9001 quality managment system certification in 2008.
Our mainly products are dragline excavator spare parts,rotary kiln spare parts, large modulus gear (gear shaft), gearbox ect. 40+ patents with over 45 years experience to help focus on improve the service life of spare parts. We belive that more than 80% reason of mechanical parts’ working life depends on hot processing (steel making/forging/casting/welding/heat treatment). Eight material engineers will control the quality from the original resource.
If you are interested, please feel free to contact us.
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L/C, T/T, Western Union, Paypal, Credit Card etc.
Shipment
By sea, by air, by express, as customers request.
5 FAQs of 12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear
What exactly is this 12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear?
This part is the main input gear inside a specific gearbox. It connects directly to the clutch assembly. It transmits engine power into the gearbox. Its job is to start the gear reduction process. This gear is critical for shifting gears smoothly.
Which gearboxes use this specific first shaft gear?
This gear fits the FAST 323KD0014 gearbox model. It is designed for the 12JSDX240T transmission series. Always check your gearbox model number. This part number is unique to this application. Using the wrong gear causes serious damage.
How do I know if my first shaft gear needs replacing?
Look for visible damage on the gear teeth. Chipped teeth or heavy wear are clear signs. Listen for grinding noises during gear shifts. Feel for vibration or difficulty engaging gears. Leaks around the input shaft area might indicate seal failure related to gear wear. Ignoring these signs risks gearbox failure.
Can I install this first shaft gear myself?
Installing this gear requires specialized tools and knowledge. The gearbox must be completely disassembled. Precise alignment and bearing preload settings are vital. Mistakes lead to incorrect gear meshing and rapid failure. This job is best left to experienced transmission technicians. They ensure correct installation and function.
Where can I buy a genuine 12JSDX240T-1707106-1 FAST 323KD0014 gear?
Purchase this gear only from authorized FAST parts dealers. Verify the seller provides genuine parts with proper documentation. Beware of cheaper counterfeit parts. Counterfeits often fail quickly and damage the entire gearbox. Reputable dealers guarantee part authenticity and fitment.

(12JSDX240T-1707106-1 FAST 323KD0014 Gearbox First Shaft Gear)
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