Coupling SI**T/K

Specification:

The Rod End Bearing, also commonly known as a spherical plain bearing or “bi mắt trâu”, is a critical mechanical linkage component widely used in pneumatic, hydraulic, and mechanical transmission systems. Despite its compact size, it offers high load capacity, flexible angular movement, and long service life, making it suitable for demanding industrial applications.

🔹 Structure of the Rod End Bearing

The rod end bearing consists of two main parts:

1. Bearing Head (Spherical Eye)

1. Composed of a polished inner spherical ring housed within a corresponding outer ring.
2. Designed to handle axial loads, radial loads, or combined loads.
3. Allows a certain degree of angular misalignment, ensuring smooth motion even under offset conditions.

2. Shank / Body (Threaded Rod)

1. The bearing head is integrated with an extended body featuring internal or external threads, depending on the model.
2. The threads are precision-machined for direct mounting to pneumatic cylinders, hydraulic cylinders, and mechanical linkages.
3. This section is also referred to as the threaded shaft, providing secure mechanical connection.

🔹 Materials and Technical Characteristics

1. Manufactured entirely from metal materials, including SUS304 stainless steel, zinc-plated steel, and brass.
2. The sliding surface is made of PTFE composite material, ensuring low friction and maintenance-free operation.
3. The outer surface is finely finished to resist dust adhesion, wear, oxidation, and corrosion.
4. Suitable for environments with high loads, pressure, vibration, or corrosive media.

🔹 Key Advantages

1. Maintenance-free design, no frequent lubrication required.
2. Low friction coefficient, enabling smooth and stable operation.
3. High durability and load-bearing capacity.
4. Easy installation and disassembly.
5. Reliable performance in both lubricated and non-lubricated systems.

🔹 Applications

Thanks to its wide range of sizes, thread types, and material options, rod end bearings are extensively used in:

1. Pneumatic and hydraulic systems
2. Pneumatic and hydraulic cylinders
3. Mechanical transmission and linkage systems
4. Industrial machinery and automation equipment
5. Construction and mining machinery
6. Aerospace and aviation applications, where compact components must withstand high loads and angular movement
7. Hydraulic steering systems in tractors, racing vehicles, ships, and marine equipment
8. Heavy-duty machinery with low vibration and high load requirements