Premium Material Composition and Structure

The core of the drive shaft is manufactured using Q345 (16Mn) low-alloy high-strength structural steel or 45# high-quality carbon steel, while advanced models incorporate 40Cr alloy steel. These materials undergo precise heat treatment and tempering processes to enhance strength and toughness. As a reliable transmission shaft, it performs exceptionally well under high torque and alternating stress, making it suitable for continuous agricultural use.

Jinbei Agricultural Drive Shaft is designed to transfer rotational power from a tractor PTO to rotary tillers, flail mowers, rotary cutters, spreaders, balers and other agricultural implements.

The shaft uses a telescopic driveline structure with universal joints at both ends, allowing it to transmit torque while accommodating changes in distance and operating angle between the tractor and implement.

Different shaft series, tube profiles, spline connections, yokes, universal joints, safety guards and clutch configurations can be produced according to equipment power, PTO speed, working length and application requirements.

Jinbei supports agricultural drive shaft production based on equipment models, OEM part numbers, technical drawings and original samples.

Main Components of an Agricultural Drive Shaft

Tractor-Side PTO Yoke

The tractor-side yoke connects the drive shaft to the tractor PTO output.

Available configurations can include different spline profiles and locking systems. The correct connection must match the tractor PTO shaft diameter, spline count and locking method.

Implement-Side Yoke

The implement-side connection transfers power to the gearbox or input shaft of the agricultural machine.

It can be customized according to:

• Spline profile
• Shaft diameter
• Keyway
• Flange
• Pin connection
• Quick-release design
• Clutch requirement

Universal Joints

Universal joints allow rotational power to pass through the driveline when the tractor and implement shafts are not perfectly aligned.

The cross-joint size and yoke series should be selected according to operating torque, peak torque, PTO speed and working angle.

Telescopic Tubes

The inner and outer profiles slide relative to each other as the distance between the tractor and implement changes.

The telescopic section must provide sufficient overlap during operation while avoiding bottoming out when the implement is raised or turned.

Protective Guard

The guard covers the rotating shaft and universal-joint areas to reduce exposure to moving driveline components.

Guard cones, retaining chains and bearing rings should be matched to the shaft configuration.

Overload or Overrunning Clutch

Selected agricultural implements may require an additional protective device.

Available options may include:

• Shear-bolt clutch
• Friction clutch
• Torque limiter
• Overrunning clutch
• Combination clutch

The clutch type and torque setting should be matched to the implement, rather than selected only by shaft size.

Reinforced Universal Joint and Cross Shaft

The universal joint fork (yoke) is forged from 20CrMnTi carburized alloy steel or 40Cr alloy steel, ensuring superior impact resistance. The cross shaft, a critical wear component of the drive shaft, is consistently made from 20CrMnTi steel and treated with carburizing and quenching. With a hardness reaching HRC 58–62, this drive shaft component provides outstanding wear resistance and fatigue strength, significantly extending service life.

Precision Spline Shaft System

The spline shaft and sleeve are constructed from 40Cr or 45# steel and undergo quenching and tempering to ensure precise engagement and durability. This guarantees that the drive shaft maintains stable and efficient power transmission, reducing mechanical loss and improving overall machine efficiency.

Surface Protection and Longevity

The outer layer of the drive shaft features a high-quality anti-rust coating or powder finish. The signature yellow coating not only enhances visual appeal but also provides strong resistance against mud, moisture, and corrosive agricultural environments. This ensures that the drive shaft remains reliable across seasons and varying field conditions.

Performance Advantages

This drive shaft (also known as a PTO shaft or transmission shaft) offers a 30% increase in torsional strength compared to standard models. The carburized cross shaft delivers a wear life exceeding 8000 hours, reducing maintenance frequency and ensuring long-term reliability. With flexible material configurations from Q345 to 40Cr, this drive shaft adapts to different horsepower requirements, making it a versatile and dependable solution for modern agricultural machinery.

Configurable Power Transmission

The shaft series can be selected according to tractor horsepower, PTO speed, implement load and required torque.

Telescopic Length Adjustment

The sliding tube structure allows the driveline length to change as the implement moves relative to the tractor.

Multiple Connection Options

Different yokes, splines, locking methods and implement-side connections are available for replacement and OEM projects.

Universal-Joint Flexibility

Universal joints accommodate normal driveline angles during operation and implement movement.

For applications involving large articulation angles, a wide-angle PTO shaft may be required.

Optional Overload Protection

Friction clutches, shear-bolt devices and torque limiters can help protect the shaft and implement drivetrain against selected overload conditions.

Protective Guard System

A properly configured guard covers the rotating shaft and reduces access to moving parts during operation.

OEM Customization

Jinbei can manufacture Agricultural Drive Shafts according to drawings, samples, equipment information and annual purchasing requirements.