China Custom Universal Coupling Steel U Joint 1″ Dd X 3/4-36 Spline Black spline coupling

Product Description

Specification OF Universal Joint —Speedway:


Product Description

 Drive Shaft  Description:

Item Universal Coupling Steel U Joint 1″ DD X 3/4-36 Spline Black
OEM Yoke and Universal Joint Assembly for Tractors
Material 20Cr or 20CrMnTi
Use After market
MOQ 50 cps

We provide propeller shaft OEM service and we can also produce propeller shaft according to your samples and drawings.
Package and Delivery:
Neutral Packing Or Customerized Packing.
We accept customerized brand packing if the quantity is good. 
Neutral Packing means each propeller shaft is packed with foam polybags, then it will be put into box, and all propeller shafts are packed in cartons finally.
All of the products are well packed.
Delivery time is 35-45 days as normal.
Packing show


Company Profile




spline coupling

Exploring the various materials used in manufacturing mechanical couplings.

Mechanical couplings are manufactured using a wide range of materials, each chosen based on specific application requirements. The choice of material impacts the coupling’s performance, durability, and suitability for different operating conditions. Here are some common materials used in manufacturing mechanical couplings:

1. Steel:

Steel is one of the most widely used materials for mechanical couplings due to its strength, durability, and cost-effectiveness. It is suitable for various applications, including high-torque and high-speed requirements. Stainless steel is often preferred for couplings in corrosive environments.

2. Aluminum:

Aluminum is known for its lightweight properties, making it suitable for applications where reducing weight is essential, such as in aerospace and automotive industries. However, aluminum couplings may have lower torque capacities compared to steel couplings.

3. Cast Iron:

Cast iron is used in couplings requiring high strength and wear resistance. It is commonly used in industrial machinery and heavy-duty applications.

4. Bronze:

Bronze is chosen for its excellent resistance to corrosion and its ability to handle high shock loads. Bronze couplings are often used in marine and hydraulics applications.

5. Brass:

Brass is used in couplings where electrical conductivity is required, such as in some electrical motor couplings.

6. Rubber and Elastomers:

Rubber and elastomers are used in flexible couplings to provide flexibility and vibration damping. They can absorb shocks and compensate for misalignments in various applications.

7. Polyurethane:

Polyurethane is commonly used in elastomeric couplings due to its excellent resilience, toughness, and resistance to wear.

8. Thermoplastics:

Thermoplastics like nylon and polyethylene are used in lightweight couplings with low torque requirements. They are known for their low friction and self-lubricating properties.

9. Composite Materials:

Composite materials, such as carbon fiber-reinforced polymers, are used in high-performance couplings where a balance of strength and weight is crucial.

10. Ceramic:

Ceramic couplings are used in extreme temperature and high-speed applications due to their excellent thermal and wear resistance properties.

The choice of material for a mechanical coupling depends on factors like the application’s operating conditions, load requirements, environmental factors, and cost considerations. Selecting the right material ensures that the coupling can perform reliably and efficiently in its intended application.

“`spline coupling

Real-world examples of mechanical coupling applications in different industries.

Mechanical couplings play a vital role in numerous industries, connecting shafts and transmitting torque between various mechanical components. Here are some real-world examples of mechanical coupling applications in different industries:

1. Manufacturing Industry:

In manufacturing plants, mechanical couplings are used in conveyor systems to connect motors to rollers or pulleys, enabling the movement of materials along assembly lines. They are also found in machine tools, such as lathes and milling machines, to transmit torque from the motor to the cutting tools.

2. Automotive Industry:

In the automotive sector, mechanical couplings are used in the powertrain to connect the engine to the transmission and wheels. They enable the transmission of torque from the engine to the wheels, allowing the vehicle to move. Couplings like universal joints (U-joints) are used in the drive shaft to accommodate the misalignment between the engine and the rear axle.

3. Aerospace Industry:

In the aerospace industry, mechanical couplings are used in aircraft engines to transmit torque from the turbine to the propellers or fans. They are also found in flight control systems to connect the pilot’s controls to the aircraft’s control surfaces, allowing for precise maneuvering.

4. Marine Industry:

In ships and boats, mechanical couplings are used in propulsion systems to connect the engine to the propeller shaft. They are also found in steering systems to connect the steering wheel to the rudder, enabling navigation and control of the vessel.

5. Oil and Gas Industry:

In the oil and gas sector, mechanical couplings are used in pumps and compressors to connect the electric motor or engine to the rotating shaft, facilitating the pumping or compression of fluids and gases. They are also used in drilling equipment to transmit torque from the drilling motor to the drill bit.

6. Mining Industry:

In mining operations, mechanical couplings are used in conveyors to transport mined materials, connecting motors to conveyor belts. They are also used in crushers and grinding mills to transmit torque from the motors to the crushing or grinding equipment.

7. Renewable Energy Industry:

In renewable energy applications, mechanical couplings are used in wind turbines to connect the rotor blades to the main shaft, enabling the conversion of wind energy into electricity. They are also used in hydroelectric power plants to connect the turbines to the generators.

8. Construction Industry:

In construction equipment, mechanical couplings are used in excavators, bulldozers, and other machinery to transmit torque from the engine to the hydraulic pumps and other working components.

These are just a few examples of how mechanical couplings are used across various industries to ensure efficient power transmission and smooth operation of a wide range of mechanical systems and equipment.

“`spline coupling

How do splined couplings work?

Splined couplings work by using interlocking ridges or teeth on the coupling and the connected shafts to transmit torque while allowing some degree of misalignment and axial movement. The operation of splined couplings can be understood in the following steps:

1. Spline Design:

The coupling and the shafts are machined with matching ridges or teeth along their surfaces. These ridges form the spline. There are various spline designs, including involute splines, straight-sided splines, and serrated splines, each with different tooth profiles and configurations.

2. Engagement:

When the splined coupling is fitted onto the shafts, the ridges on the coupling engage with the corresponding grooves on the shafts, creating a secure and positive connection. The engagement can be internal, where the coupling fits inside the shafts, or external, where the coupling fits over the shafts.

3. Torque Transmission:

When torque is applied to one of the shafts, the ridges on the coupling transmit the torque to the other shaft, allowing rotational motion to be transferred between the two shafts.

4. Misalignment Compensation:

Splined couplings can accommodate a small amount of misalignment between the shafts. This misalignment can be angular, where the shafts are not perfectly aligned, or parallel, where the shafts are slightly offset from each other. The splined design allows the coupling to flex slightly, accommodating these misalignments and reducing stress on the shafts and other components.

5. Axial Movement:

Some spline couplings, such as spline shafts, can also allow for limited axial movement. This axial play is useful in applications where thermal expansion or contraction of the shafts may occur, preventing excessive forces on the system.

Splined couplings are commonly used in precision motion control systems, automotive drivetrains, industrial machinery, and other applications where accurate torque transmission and flexibility in alignment are essential. Proper machining and assembly are critical to ensuring precise engagement and reliable operation of splined couplings in various mechanical systems.

China Custom Universal Coupling Steel U Joint 1China Custom Universal Coupling Steel U Joint 1
editor by CX 2023-10-07

Spline Coupling

As one of spline coupling manufacturers, suppliers and exporters of mechanical products, We offer spline coupling and many other products.

Please contact us for details.

Mail:[email protected]

Manufacturer supplier exporter of spline coupling.


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