These core sealing components, supplied directly by China First Tractor, are specifically developed and manufactured for the entire range of YTO tractors. They are designed for key transmission and hydraulic components such as engines, transmissions, front and rear axle hubs, and hydraulic cylinders. Engineered for harsh operating conditions involving mud, bumps, and significant temperature variations, they provide effective protection against oil leaks, dust, water, and other contaminants, creating a robust protective barrier for the tractor’s internal precision parts. They are the preferred original equipment manufacturer (OEM) choice for routine maintenance and parts replacement of agricultural machinery.
The sealing lip, combined with a self-tightening helical spring design, provides long-lasting radial force, ensuring a tight fit against the shaft surface without gaps. The composite oil seal utilizes a multi-layer barrier structure to achieve bidirectional sealing, effectively preventing leakage of internal lubricating oil and strongly blocking the intrusion of external contaminants. This protects core components such as bearings, gears, and hydraulic parts, reducing wear and failure.
Before leaving the factory, the oil seals undergo multiple professional tests for sealing performance, temperature resistance, and wear resistance. They have a low friction coefficient, are resistant to twisting and rolling, and have a service life far superior to aftermarket generic versions.
