China Professional Agricultural Machinery Transmission Shaft Pto Shaft Yoke for Tractor

Product Description

agricultural Machinery Transmission Shaft PTO Shaft Yoke for Tractor

1.High quality

2.CNC machine with strick tolerance

3.Professional shaft manufacturer

4.Acid resistant

Using Auto part, machine, transmission system, steering system
Structure            Shaft with universal joints
Materials Steel, stainless steel, alloy steel
Treatment drill, mill, wire-electrode cutting, weld, heat treatment
Surface Coated or natural
business sphere all kinds drive shafts, steering shaft, universal joints can be custom made

    1. We have been specialized in designing, manufacturing drive shaft, steering coupler shaft, universal joints, which have exported to the USA, Europe, Australia etc for years  
    2.  Application to all kinds of general mechanical situation
    3.  Our products are of high intensity and rigidity.
    4.  Heat resistant & Acid resistant
    5. OEM orders are welcomed
1. Power or torque related to alternating load you require.

540 r.p.m. 1000 r.p.m.
torque [Nm] power [CV] torque [Nm] power [CV]
series 1 210 16 170 24
series 2 280 21 230 32
series 3 400 30 320 45
series 4 460 35 380 53
series 5 620 47 500 70
series 6 830 64 690 98
series 7 980 75 800 113
series 8 1240 95 1000 140

2.Cross journal(Universal joint) size which decides torque of a PTO Shaft:

Cross journal  size Ref. A                           mm B                         mm
Series 1 1.01.01 54 22
Series 2 2.01.01 61.3 23.8
Series 3 3.01.01 70 27
Series 4 4.01.01 74.6 27
Series 5 5.01.01 80 30.2
Series 6 6.01.01 92 30.2
Series 7N 7N.01.01 94 35
Series 7 7.01.01 106.5 30.2
Series 8 8.01.01 106.5 35


3 Closed overall length (or cross to cross) of a PTO shaft.
4 Tubes or Pipes
We’ve already got Triangular profile tube and Lemon profile tube for all the series we provide.
And we have some star tube, splined tube and other profile tubes required by our customers (for a certain series). (Please notice that our catalog doesnt contain all the items we produce)
If you want tubes other than triangular or lemon, please provide drawings or pictures.
5 End yokes
We’ve got several types of quick release yokes and plain bore yoke. I will suggest the usual type for your reference.
You can also send drawings or pictures to us if you cannot find your item in our catalog.
6 Safety devices or clutches
I will attach the details of safety devices for your reference. We’ve already have Free wheel (RA), Ratchet torque limiter(SA), Shear bolt torque limiter(SB), 3types of friction torque limiter (FF,FFS,FCS) and overrunning couplers(adapters) (FAS).
7 For any other more special requirements with plastic guard, connection method, color of painting, package, etc., please feel free to let me know.


Condition: New
Certification: ISO
Type: Steering Gears/Shaft


Customized Request

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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

pto shaft yoke

How do PTO shaft yokes handle variations in load and torque during operation?

PTO shaft yokes are designed to handle variations in load and torque during operation, providing a reliable and efficient power transmission between the power source and the implement. Here’s how they handle these variations:

1. Flexible Coupling: PTO shaft yokes serve as a flexible coupling between the power source and the implement. This flexibility allows them to accommodate variations in load and torque. As the implement encounters changes in resistance or load, the PTO shaft yoke flexes slightly, absorbing the shocks or fluctuations. This flexibility helps prevent excessive stress on the driveline components and ensures smoother operation.

2. Slip Clutches: Some PTO shaft yokes incorporate slip clutches as a safety feature to handle sudden increases in torque or overload conditions. Slip clutches allow controlled slippage between the yoke and the PTO shaft, protecting the driveline from damage. When the torque exceeds a certain threshold, the slip clutch disengages, allowing the yoke to slip momentarily, absorbing the excess torque. Once the torque decreases to a safe level, the slip clutch re-engages, restoring power transmission.

3. Torque Limiters: Torque limiters are another mechanism used in certain PTO shaft yokes to handle variations in torque. These devices are designed to limit the amount of torque that can be transmitted through the yoke. In high-torque situations, such as encountering a sudden resistance, the torque limiter disengages, preventing excessive torque from reaching the driveline and protecting the equipment from damage.

4. Shear Pins: Some PTO shaft yokes utilize shear pins as a sacrificial weak point in the power transmission system. Shear pins are designed to break under excessive load or torque, disconnecting the yoke from the PTO shaft. This helps protect the driveline and other components from damage. Shear pins can be easily replaced, restoring the yoke’s functionality.

5. Adjustments and Calibration: In certain cases, operators can make adjustments or calibrations to PTO shaft yokes to optimize their performance based on the specific load and torque requirements. This may involve adjusting the clutch engagement settings, changing gear ratios, or modifying the power source’s speed to achieve the desired power output.

By incorporating flexible coupling, slip clutches, torque limiters, shear pins, and offering adjustment options, PTO shaft yokes effectively handle variations in load and torque during operation. These features help protect the driveline, prevent equipment damage, and ensure efficient power transmission in a wide range of applications.

pto shaft yoke

What are the common signs of wear or damage that indicate a need for PTO shaft yoke replacement?

PTO shaft yokes, like any mechanical component, can experience wear or damage over time. Several common signs indicate the need for PTO shaft yoke replacement. These signs include:

1. Excessive Play or Looseness: If you notice excessive play or looseness in the PTO shaft yoke connection, it could indicate wear or damage. The yoke may no longer fit securely on the PTO shaft or the driven equipment, compromising its ability to transmit power effectively.

2. Visible Cracks or Breaks: Inspect the PTO shaft yoke for any visible cracks, fractures, or breaks. These can occur due to excessive stress, impact, or fatigue over time. Cracks or breaks weaken the structural integrity of the yoke and can lead to total failure, necessitating replacement.

3. Damaged Splines: The splines on the inner surface of the PTO shaft yoke should be inspected for any signs of damage. This includes worn-out or stripped splines, which can occur due to improper engagement, misalignment, or excessive torque. Damaged splines can result in poor power transmission and may require yoke replacement.

4. Excessive Wear on Bore or Spline Area: Check the bore and spline area of the PTO shaft yoke for signs of excessive wear. This can manifest as elongated or enlarged bore holes, worn-out splines, or significant material loss. Excessive wear can lead to poor fitment, reduced power transmission efficiency, and potential failure.

5. Corrosion or Rust: PTO shaft yokes are often exposed to environmental conditions that can cause corrosion or rust. Inspect the yoke for any signs of corrosion, especially in areas where the yoke comes into contact with moisture or chemicals. Corrosion weakens the yoke’s structural integrity and can affect its performance, requiring replacement.

6. Irreparable Damage: In some cases, the PTO shaft yoke may sustain irreparable damage, such as severe deformations, significant material loss, or structural failure. If the damage is extensive and compromises the yoke’s functionality or safety, replacement is necessary.

If you observe any of these signs of wear or damage in a PTO shaft yoke, it is recommended to replace the yoke as soon as possible. Continuing to use a worn or damaged yoke can lead to equipment malfunction, power loss, or even accidents. Regular inspection and maintenance of PTO shaft yokes can help identify these signs early and ensure reliable and safe operation.

pto shaft yoke

Can you explain the functions and significance of a PTO shaft yoke?

A PTO (Power Take-Off) shaft yoke is a critical component in power transmission systems, particularly in vehicles and machinery equipped with PTO capabilities. It serves multiple functions and holds significant significance in ensuring efficient power transfer. Here’s a detailed explanation:

1. Power Transmission: The primary function of a PTO shaft yoke is to transfer power from the power source, such as an engine or power take-off unit, to the driven equipment. It acts as a mechanical link between the rotating output of the power source and the input shaft of the driven equipment. By securely connecting the PTO shaft to the driven equipment, the yoke enables the transmission of rotational energy and torque, allowing the equipment to perform its intended functions.

2. Alignment and Connection: PTO shaft yokes play a crucial role in aligning and connecting the PTO shaft and the driven equipment. The splined bore of the yoke is designed to securely engage with the splines on the PTO shaft, creating a strong and reliable connection. The mounting flange or connection point of the yoke is constructed to align precisely with the corresponding connection on the driven equipment, ensuring proper coupling and alignment. This alignment and connection are essential for efficient power transmission and prevent issues such as misalignment, excessive vibration, and premature wear.

3. Flexibility and Articulation: PTO shaft yokes often incorporate flexible or articulating features to accommodate movement and misalignment between the power source and the driven equipment. This flexibility allows the PTO shaft yoke to compensate for slight angular or positional variations that may occur during operation. It helps maintain a continuous and smooth power transfer even when the equipment is subjected to dynamic or uneven operating conditions. By allowing some degree of flexibility and articulation, the yoke helps reduce stress on the PTO shaft and the driven equipment, contributing to their longevity and performance.

4. Serviceability and Maintenance: PTO shaft yokes require regular inspection and maintenance to ensure their proper functioning and longevity. Lubrication of the splined bore and periodic tightening of connection bolts are important maintenance tasks to prevent excessive wear and maintain a secure connection. Additionally, proper guarding and safety measures should be in place to protect operators and bystanders from rotating or exposed PTO shafts. Proper maintenance of PTO shaft yokes ensures their reliability, safety, and optimal performance.

5. Overall Significance: PTO shaft yokes hold significant significance in the efficient operation of PTO-driven machinery and vehicles. They enable the transfer of power from the power source to the driven equipment, ensuring that the equipment can perform its intended functions. By providing alignment, connection, and flexibility, PTO shaft yokes contributeto the smooth and reliable power transmission, reducing the risk of mechanical issues and optimizing the performance of the machinery. Their proper maintenance and serviceability are crucial for ensuring their longevity, safety, and overall effectiveness in power transmission systems.

China Professional Agricultural Machinery Transmission Shaft Pto Shaft Yoke for Tractor  China Professional Agricultural Machinery Transmission Shaft Pto Shaft Yoke for Tractor
editor by CX 2023-12-11