Product Introduction

The 42307E / N307E2 FAST Gearbox Transmission Bearing is a precision cylindrical roller bearing engineered for FAST manual transmissions widely used in SINOTRUK HOWO heavy-duty trucks. It is commonly installed in the auxiliary gearbox countershaft assembly, where it provides reliable radial load support, maintains shaft alignment, and ensures smooth power transmission under heavy-duty operating conditions. FAST gearbox parts catalogs list 42307E as the cylindrical roller bearing used in the auxiliary gearbox countershaft assembly.

Manufactured from premium bearing steel and produced to OEM quality standards, this bearing features precision grinding, optimized internal geometry, and advanced heat treatment. These manufacturing processes provide excellent load-carrying capacity, superior wear resistance, low friction, and high rotational stability, helping reduce transmission vibration and extend gearbox service life.

Designed as a direct aftermarket replacement, the 42307E / N307E2 bearing is suitable for gearbox overhaul, preventive maintenance, and transmission repair. It is widely used in heavy-duty tractors, cargo trucks, dump trucks, construction machinery, mining vehicles, and commercial transport fleets equipped with FAST manual gearboxes.

With OEM-level quality and reliable durability, this bearing helps improve transmission efficiency, reduce maintenance costs, and ensure dependable drivetrain performance. It is an ideal solution for truck repair workshops, fleet maintenance companies, distributors, and wholesale truck spare parts suppliers.

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Transmission & Drivetrain Parts

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