Single Row Thrust Roller Bearing 81218 81120 81220 Tandem Structure With C4 Clearance

Product Description:

Thrust roller bearings are a type of specialized bearing designed to primarily bear axial loads, while also being capable of bearing a certain degree of radial loads. In various industrial applications where heavy loads and impact loads need to be borne, these bearings play a pivotal role.

Composition and Functioning of Thrust Roller Bearings

Thrust roller bearings generally consist of bearing seats, shaft rings, rollers, and cages, each of which contributes to the bearing's functioning. Among these components, rollers are the core components and are located between the bearing seats and shaft rings. The rollers are responsible for transmitting and dispersing axial loads by rolling against the bearing seats and shaft rings. This design ensures that thrust roller bearings maintain a low friction coefficient even when bearing high loads, thereby reducing energy loss and increasing the bearing's lifespan.

Features:

Thrust roller bearings are designed to carry axial and radial combined loads and feature several notable characteristics.

Thrust roller bearings are capable of withstanding large axial loads, making them ideal in environments with heavy and shock loads. They have a high load capacity and can carry both axial and radial loads.

Thrust roller bearings transmit loads by rolling rollers between the bearing seat and the shaft ring. This rolling contact reduces the friction coefficient compared to sliding contact. Low friction coefficient helps reduce energy loss, improve mechanical efficiency, and reduce heat generation during operation.

Some thrust roller bearing designs have self-aligning performance that can automatically adjust slight deviations of the axis. This feature helps to reduce stress concentration caused by installation or axis deviation, improving bearing life and equipment reliability.

Thrust roller bearings usually have a compact structural design and can provide strong load-bearing capacity in a limited space. This makes them an ideal choice for space-constrained applications.

The rollers of thrust roller bearings are usually made of high-quality materials and are precision-machined to ensure a long service life under high load and high-speed operation conditions. Proper lubrication and maintenance can also extend the life of the bearing.

Thrust roller bearings usually adopt a modular design, making installation and disassembly relatively easy. Some thrust roller bearings are also equipped with structures that facilitate inspection and replacement of rollers, making maintenance easier.

Thanks to their rolling contact method, thrust roller bearings can run smoothly, reducing noise and wear caused by vibration and impact. This helps improve the operating stability and reliability of the equipment.

Technical Parameters:

Applications:

Thrust Roller Bearings: Widely Used in Many Industrial Fields

Thrust roller bearings are a popular bearing choice in many industrial fields due to their ability to withstand axial and radial combined loads, particularly axial loads. In this article, we will provide a detailed description of the various applications of thrust roller bearings.

1. Industrial Machinery Field

Thrust roller bearings are used extensively in heavy machinery and equipment, including oil drilling rigs and iron and steel machinery. These bearings are suitable for situations involving high loads and impact loads. For example, thrust cylindrical roller bearings are specifically designed for use in oil drilling rigs and iron and steel machinery. Additionally, thrust spherical roller bearings are ideal for use in hydraulic generators and vertical motors as they can handle large axial forces and overturning moments. Tower cranes and extruders similarly need to withstand heavy loads and impact loads, making thrust roller bearings essential parts of these devices.

2. Lifting Equipment

Thrust tapered roller bearings are commonly used in crane hooks, which must withstand unidirectional axial loads.

3. Ship Field

Thrust roller bearings are widely used in ship transmission systems to address the issue of large thrust loads. They offer excellent support and can help ensure the normal operation of the ship.

4. Automobile Field

Thrust roller bearings are an essential component of automobiles, particularly in the gearbox and rear axle. These bearings can withstand large thrust and radial loads, ensuring the smooth operation of the car.

Packing and Shipping:

Product Packaging:

• Each thrust roller bearing is packed in a plastic bag.
• Multiple bearings are then placed in a sturdy cardboard box.
• The box is sealed with strong adhesive tape.

Shipping:

• We ship all orders within 1-2 business days.
• We offer standard and expedited shipping options.
• All orders are tracked and insured.
• Shipping costs vary based on destination and shipping method selected.
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