Product Introduction

The 3463502939 Crown Wheel and Pinion 21/28 is a key final drive component used in the rear axle differential systems of Mercedes-Benz Actros MP1 / MP2 and MAN TGA / TGM / F2000 heavy-duty trucks.

The crown wheel and pinion gear set is responsible for transferring rotational power from the driveshaft input to the differential carrier and axle shafts. By changing the direction of torque transmission and providing the final reduction ratio, it allows heavy trucks to generate higher wheel torque for transporting heavy loads while maintaining efficient drivetrain operation.

This gear set includes a 21-tooth pinion gear and 28-tooth crown wheel, which are precisely matched during manufacturing to achieve correct tooth contact, backlash, and load distribution. Proper gear matching helps reduce vibration, minimize gear noise, improve fuel efficiency, and extend the service life of the complete rear axle assembly.

During heavy-duty operation, the crown wheel and pinion are subjected to high torque, impact loads, continuous tooth contact pressure, and changing driving conditions. Gear tooth wear, pitting, or incorrect adjustment may result in abnormal axle noise, overheating, reduced power transmission efficiency, and differential failure.

The 3463502939 crown wheel and pinion set is manufactured from premium alloy steel using precision forging, CNC gear cutting, carburizing, quenching, precision grinding, and surface hardening technology. These processes provide excellent tooth strength, fatigue resistance, dimensional accuracy, and long-term durability.

Designed according to OEM specifications, this final drive gear set provides direct replacement compatibility for Mercedes-Benz Actros MP1 / MP2 and MAN TGA / TGM / F2000 rear axle systems. It is widely used for differential repair, axle rebuilding, fleet maintenance, and aftermarket drivetrain overhaul.

Each gear set undergoes strict quality inspections including tooth profile measurement, contact pattern testing, hardness testing, backlash verification, and dimensional inspection to ensure reliable performance and extended service life.

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