Core Functions & Product Advantages

1. Secondary Deceleration & Torque Amplification for Extreme Heavy-Duty Work

   As the fixed meshing reference of the planetary reduction mechanism, it cooperates with the sun gear and planetary gears to achieve a large transmission ratio of 3-5 times end torque amplification, which fully meets the ultra-high traction demand of 240-260HP tractors in extreme working conditions such as deep plowing, deep loosening, combined land preparation and heavy implement traction. It is the key carrier for tractors in this horsepower range to realize the core performance of “low speed and high torque”.

2. Optimized Chassis Design & Improved Field Trafficability

   The wheel-side reduction mechanism integrates the end torque amplification function inside the wheel hub, without increasing the size of the central transmission axle housing, which can greatly raise the ground clearance of the tractor rear axle, avoid crop crushing and ridge scraping during operation, and significantly improve the trafficability in high-ridge planting, muddy fields and large-scale field scenarios.

3. Load Distribution & Extended Whole Machine Service Life

   The wheel-side end mechanism undertakes the core torque amplification function, which can greatly reduce the torque load and design stress of the front-stage transmission components such as the main gearbox, auxiliary transmission mechanism, central transmission and half shaft, reduce the wear and fracture failure of the transmission system, optimize the load distribution of the whole machine, significantly extend the service life of the tractor transmission system, and reduce the equipment maintenance cost under heavy-duty operation.

4. High Strength & Impact Resistance for Harsh Field Conditions

   Made of high-quality alloy structural steel 20CrMnTi/42CrMo with integrated forging, and treated by carburizing and high-frequency quenching, the tooth surface hardness reaches HRC58-62, with hard surface and tough core. The multi-tooth simultaneous meshing design has strong bearing capacity and stable transmission, which can stably withstand the high-frequency alternating impact load brought by muddy and uneven terrain, eliminate tooth breakage and deformation failure, and ensure continuous and uninterrupted power output under harsh working conditions.

5. High-Precision OEM Matching & Easy Installation

   Produced in strict accordance with OEM specifications, the tooth profile, mounting hole position and spline size are 1:1 matched with the original vehicle auxiliary transmission system. No secondary modification is required, it can directly replace the original parts, with strong interchangeability and convenient installation, compatible with most mainstream brands of 240-260HP tractors at home and abroad.

Product Structure & Manufacturing Process

• Main Structure Type: Standard integrated final drive internal ring gear (adopted by more than 90% of models), the ring gear and mounting base are integrally forged without splicing and inserting, with high structural strength and strong impact resistance, suitable for long-term heavy-duty operation; split insert type ring gear is optional, which can be replaced separately after wear, with lower maintenance cost; compatible with single-stage / two-stage planetary reduction mechanism.
• Tooth Profile Design: Adopting national standard involute cylindrical internal teeth, complying with the industry standard of tractor transmission system; heavy-duty tooth profile modification design can be customized to reduce meshing impact and improve bearing capacity, specially optimized for extreme heavy-duty operation models.
• Core Manufacturing Process: Integrated Hot Forging → Normalizing Treatment → Precision CNC Gear Shaping/Hobbing → Carburizing/High-Frequency Quenching → Precision Gear Grinding → Dynamic Balance Testing → Blackening/Phosphating Anti-Rust Treatment.
• Accuracy Grade: ISO Grade 6-8, in line with the industry accuracy standard of agricultural machinery transmission parts, with precisely controlled meshing clearance, stable transmission and low noise.

Application Fields & Working Scenarios

1. Core Application Field

   Exclusively suitable for 240-260HP agricultural wheeled tractors, covering mainstream brands at home and abroad such as YTO, Foton Lovol, John Deere, Case New Holland, Dongfeng Agricultural Machinery in the same horsepower range. It is the standard core transmission part and high-frequency replacement wearing part of tractors in this horsepower range.

2. Core Working Scenarios

   Deep plowing, deep loosening, combined land preparation and land reclamation in large-scale farms in Northeast China and Xinjiang; wide-width sowing, film mulching, intertillage, plant protection and straw returning of field crops such as wheat, corn and cotton; heavy agricultural implement traction and farm material transportation; field operation in complex environments such as paddy fields, hilly mountains and saline-alkali land.

3. Extended Application Fields

   Wheel loaders, graders, combine harvesters, self-propelled silage machines, cotton pickers and other agricultural engineering machinery in the same power range; wheel-side reduction transmission system of special vehicles such as underground mine auxiliary transport vehicles, forestry operation tractors and heavy-duty off-road special vehicles.

Purchase Notes

1. Compatibility Instruction: Please provide the tractor brand and model, OEM part number, product drawing or sample when placing an order. We can accurately match the corresponding products, and support non-standard customization according to your drawings and samples.
2. MOQ Requirement: Small batch purchase is available for in-stock items, MOQ for customized items is negotiable according to your demand, OEM/ODM service is supported.
3. Quality Assurance: All products have passed multiple tests of hardness, meshing accuracy and dynamic balance before delivery, fully complying with the industry quality standards of agricultural machinery, and providing perfect after-sales warranty service.
4. Logistics & Delivery: In-stock orders will be shipped within 48 hours, delivery time for customized items is negotiable according to the production cycle. We support nationwide logistics distribution and cross-border foreign trade sea/air freight.

FAQ：

1. Is this final drive ring gear compatible with my 250HP tractor?

   A: Yes, our products are specially designed for 240-260HP tractors. Just provide the tractor brand, specific model or OEM part number, we will match the fully compatible products for you. We also support non-standard customization according to your drawings and samples.

2. How about the service life of the product? Is it suitable for long-term heavy-duty operation?

   A: This product is made of high-quality alloy steel with integrated forging and carburizing quenching process. Under normal working conditions, its service life can match or even exceed OEM parts. It is specially optimized for extreme heavy-duty working conditions such as deep plowing and deep loosening, and can withstand high-frequency impact load for a long time with strong durability.

3. Can the material of the ring gear be customized?

   A: Yes, we standardly use 20CrMnTi alloy structural steel, and can also customize higher strength materials such as 40Cr and 42CrMo according to your working condition requirements. At the same time, we can adjust the tooth profile and heat treatment process to meet personalized use needs.

4. Can it be installed directly after receipt? Is secondary modification required?

   A: Our products are produced in strict accordance with OEM 1:1 parameters, the installation size and tooth profile parameters are fully matched with the original vehicle. It can directly replace the original parts after receipt, without any secondary modification, and is easy to install.