Hot sale HITACHI ZAXIS ZX25 28 30 SERIES FINAL DRIVE SUN GEAR 16T 37.5MM HEIGHT | Tonkee®

The final drive sun gear plays a crucial role in the power transmission system of these excavators.

It is a part of the planetary gear mechanism within the final drive assembly, which is responsible for transferring power from the engine to the tracks, enabling the excavator to move and perform various digging and excavation tasks.

Material and Durability:
The sun gear is typically made from high-quality, hardened steel to withstand the tremendous forces and stresses it experiences during operation. This ensures the sun gear's longevity and reliability under challenging working conditions, such as digging through tough soils and rocks.

Tooth Count and Pitch Diameter:
The sun gear is designed with precisely 16 teeth, which engage with the planet gears and ring gear in the planetary gear set. The pitch diameter, which is determined by the size and spacing of these teeth, is carefully engineered to optimize gear meshing and power transmission efficiency.

Dimensions:
With a height of 37.5mm, the sun gear is manufactured to precise tolerances to ensure a proper fit within the final drive assembly. This dimensional accuracy is crucial for the smooth and efficient operation of the planetary gear set.

Gear Ratio:
The number of teeth on the sun gear, along with those on the planet gears and ring gear, determines the gear ratio within the planetary gear mechanism.

This gear ratio is critical in controlling the excavator's speed and torque, allowing it to perform various tasks effectively.

Load Distribution:
The sun gear's teeth are designed to distribute the load evenly across the planet gears. This even distribution of force is essential for preventing premature wear and ensuring the longevity of the final drive system.

Lubrication and Heat Dissipation:
Proper lubrication of the sun gear and the entire final drive assembly is essential to reduce friction and dissipate heat generated during operation. Adequate lubrication also helps in preventing wear and maintaining the efficiency of the gear system.

Compatibility:
The sun gear with 16 teeth and a height of 37.5mm is specifically designed for compatibility with the Hitachi ZAXIS ZX25, ZX28, and ZX30 series excavators. It is engineered to meet the exact specifications and requirements of these machines, ensuring a seamless fit and performance.

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