3243360180 Hitachi Loader Bevel Gear for ZW370-5A

The original Hitachi loader bevel gear (part number: 3243360180) is the core gear pair component in the Hitachi loader drive axle transmission system, mainly used to change the direction of power transmission and transmit torque. According to the general rules of Hitachi's loader accessory system, this part number is mainly suitable for Hitachi ZW series wheel loaders, which may include common models such as ZW140, ZW180, ZW220, ZW250, ZW310, ZW330, ZW370-G, ZW550-G.

The bevel gear pair is the "power steering hub" of the loader drive axle. Its core function is to convert the longitudinal rotational power input by the transmission shaft into lateral rotational power, drive the wheels to rotate, and achieve deceleration and torque increase through gear meshing to cope with heavy load conditions. As an original component, it strictly follows Hitachi's quality standards and is usually made of high-strength alloy steel (such as 20CrMnTi) through heat treatment processes such as carburizing and quenching. It has high tooth surface hardness, good core toughness, and excellent fatigue and impact resistance. Its tooth profile adopts spiral bevel gear or curved tooth design, with smooth meshing, low noise, and high load-bearing capacity, capable of transmitting torque up to thousands of Newton meters.

The maintenance core of this bevel gear pair is to ensure good lubrication and correct meshing. Daily inspection: It is recommended to check the oil level and quality of the drive axle gear oil every 250 working hours, ensuring the use of lubricating oil that meets specifications (such as API GL-5, viscosity 80W-140), and regularly replace it (usually every 2000 hours or annually). Regular monitoring: Every 1000 hours of operation or every quarter, monitor the gearbox for any abnormal whistling or knocking sounds, which may be signs of tooth surface pitting, wear, or bearing damage. Professional adjustment: After major repairs or gear replacement, it is necessary to use red lead oil to check and adjust the contact spots on the tooth surface, ensuring that the imprint is located at the high end of the tooth and close to the small end. At the same time, use a lead or dial gauge to measure and adjust the tooth side clearance to the standard range of 0.2-0.35mm.