Speed Gear


More Information

Product Model:

33333-E0050  35T/57T  HINO  M009


Product Details:

1. Material and Process: Made of 20CrMnTi high-strength alloy steel, treated with carburizing and quenching process. The tooth hardness reaches 59-63 HRC, and the matrix has excellent toughness, ensuring both wear resistance and impact resistance.


2. Structural Design: The inner bore is equipped with a multi-keyway/spline structure, and the fit clearance with the drive shaft is controlled within 0.01-0.03mm, ensuring strong adaptability; the teeth are thickened by 20% (compared to ordinary gears), and the tooth root fillet is optimized, increasing the torque capacity by 30%.


3. Surface and Durability: The surface is treated with blackening/oxidation, achieving a rust prevention level of 480 hours in salt spray testing; the fatigue life is ≥12000 hours (under heavy load conditions), and it can adapt to extreme working environments from -40℃ to +50℃.


4. Applicable Models: Specifically designed for the M009 gearbox of HINO 300/500 series commercial vehicles (including light and medium-heavy trucks), it is a core transmission component for the 2nd/3rd gears.


5. Functional Positioning: As a speed ratio adjustment gear in the gearbox, it achieves speed/torque conversion of engine power through meshing with the synchronizer and input shaft (speed ratio range: 1.8-2.5), optimizing fuel efficiency by approximately 8% and reducing engine load.