Crossed Roller Slewing Ring Bearing For Tower Crane-manufacture,factory,supplier from China

The single-row four-point contact ball slewing bearing has the characteristics of compact structure and light weight, which makes it widely used in construction machinery. Because the steel ball and the circular raceway contact at four points, this support can bear axial force, radial force and heeling moment at the same time, with high bearing capacity and stability. Applicable scope includes rotary conveyor, welding operator, small and medium-sized cranes, excavators and other construction machinery, is a multi-functional, efficient slewing support structure.

High Rigidity Type Crossed Roller Bearing V has a solid one-piece construction for both inner and outer rings. Therefore, high accuracy and high rigidity are achieved, and mounting errors can be minimized. As separators are incorporated between the cylindrical rollers for smooth rotation, these bearings are suitable for applications where rotation speed is comparatively high.

In engineering applications, rotary support bearings play an important role. For example, in construction machinery, rotary support bearings are widely used in cranes, tower cranes, excavators and other equipment to support and rotate various arms, booms and rotating seats to ensure smooth operation and accurate positioning of equipment. In ships and port machinery, rotary support bearings are used to support various rotating devices to help ships navigate and cargo handling.

These bearings are widely used in the rotating parts of industrial robots, machine tools, medical equipment, etc., which requirecompactness, high rigidity and high rotational accuracy. In addition, bearings made of stainless steel and those with inner and outer rings provided with mounting holes are also available on request. Please contact us.Crossed Roller Bearings are compact bearings with their rollers alternately crossed at right angles to each other between inner and outer rings.

In general, the rotary support bearing is an indispensable part of modern mechanical equipment, and its stability, reliability and life directly affect the operating efficiency and safety of the equipment. Therefore, in the process of engineering design and use, it is necessary to attach great importance to the selection, installation and maintenance of rotary support bearings to ensure the normal operation of the equipment and extend the service life.

Structural features: The roller inside the cross roller bearing is combined in a cross arrangement, which makes the bearing able to withstand both radial and axial loads. There is a certain gap between the inner and outer rings, which can make the bearing maintain high rigidity when it is subjected to high torque load, and also has good rotation accuracy and stability. The design of the seal ring and cage of the cross roller bearing is also very important, which can effectively prevent dust and foreign matter from entering the bearing interior and extend its service life.

Rotary bearing is an important mechanical component, which is widely used in various industrial equipment and mechanical devices. It bears the radial load, axial load and moment load under the rotating motion, and plays the role of support and rotation. The following will introduce the structure, working principle, application field and maintenance of the rotary support bearing in detail.Rotary support bearings are usually composed of an inner ring, an outer ring, a rolling element (ball, roller, etc.) and a cage.

Rotary support bearings are widely used in various mechanical equipment and construction machinery, such as cranes, rotary tables, machine tools, wind power equipment, drilling RIGS, excavators and so on. In these equipment, the rotary support bearing assumes the important role of supporting the rotating member, ensuring the normal operation of the equipment. At the same time, it is also widely used in high-end fields such as aerospace, ocean engineering, and automated production lines.

Slewing bearing has four series of toothless, external and internal toothed four-point contact ball bearings, double row angular contact ball bearings cross cylindrical roller bearings, cross tapered roller bearings and three row cylindrical roller composite bearings, of which four-point contact ball bearings have higher static load capacity, cross cylindrical roller has higher dynamic load capacity, The pre-interference of cross-tapered roller bearing can make the bearing have greater support rigidity and rotation accuracy.

We are IKO bearing distributors，we offer a full range of IKO Bearings at very competitive prices, including high quality IKO needle bearing, crossed roller bearings, thrust bearings, roller bearings, ball linear motion rolling guides, roller rolling guides, linear motion rolling guides , precision positioning tables and mechanical parts. Most products can be shipped same or next day.IKO Crossed Roller BearingsIKO Bearing designs and manufactures a wide range of crossed roller bearings that can simultaneously withstand radial, thrust and moment loads.

There are two main types of bearings widely used in industrial robots: constant cross-section thin-walled bearings and RU cross roller bearings. The bearing of an industrial robot is one of the key components suitable for the joints of industrial robots or the turntables of machining centers, robots, medical devices, measuring instruments, IC manufacturing equipment, etc., and has a wide range of uses.

RU cross roller bearings are also known as bearings. The main body of a rolling body usually uses cylindrical or tapered rollers to intersect a single flow path, separated by retainers or spacers, and arranged in a cross pattern. Therefore, the cross roller ring group can withstand loads in all directions, with a stiffness of 3-4 times higher than traditional models. RU cross roller bearing is lubricated by spray. Drilled shrinkage air mixes spray and lubricating oil to produce oil mist.

The different types of cylindrical roller bearings are designated based on their structural features and intended applications: N..EM: Cylindrical roller bearing with a standard inner ring without any ribs, suitable for radial loads. NU..EM: Bearing with aremovable inner ring and two integral flanges on the outer ring, designed for high radial loads and accommodates axialdisplacement. NJ..EM: Features a removable inner ring and one integral flange on the outer ring, primarily used for applicationswhere axial displacement is required.

Conical roller bearing is a common mechanical transmission element, mainly used to carry axial and radial loads and can achieve rotation and swing motion. It is mainly composed of an inner ring, an outer ring, a roller and a cage, with large carrying capacity, low friction, suitable for high-speed rotation and high accuracy requirements, so it is widely used in construction machinery, automotive, aerospace, mining machinery, metallurgical equipment and other fields.

Bearing performance: The bearing capacity of cross roller bearings is large, suitable for high-speed and high-load applications. Due to the special arrangement of rollers, the bearing can share part of the load when bearing radial and axial loads, which improves the bearing capacity and stability.

Single row tapered roller bearing is a common rolling bearing, which is composed of an inner ring, an outer ring, a roller and a cage. Its structure is similar to a conical shape, which is why it gets its name.The contact points on the inner and outer rings are conical and suitable for bearing large loads in both radial and axial directions.

1.Needle roller bearings for stamping outer rings. There are two kinds of bearings: perforated type and sealed type. The needle roller bearing has no inner ring, and the needle roller directly contacts the surface of the shaft, so the processing accuracy and heat treatment hardness of the shaft should be the same as that of the bearing inner ring.2. Solid ring needle roller bearings solid ring needle roller bearings, commonly used solid ring needle roller bearings are NA type and RNA type.3. Roller needle bearing4. Needle roller and cage assembly.

Product Description:Manufacture a variety of mechanical structural components, such as machine workbench, robot arms, etc.

(1)Linear motion bearing is a kind of low-cost metal for producing linear motion system, which is used for infinite stroke cylindrical shaft.. Because point contact ball bearing with shaft, so using the load is small.  (2) the flange linear bearing can be divided into: round flange type, method type, elliptical flange type, guided round flange, guiding method, guide the elliptical flange type, extended round flange type.(3)According to the specification is divided into two series of LM and LME series.

THK linear bearing is a kind of high-precision mechanical transmission element, which is often used in industrial automation equipment, robots, CNC machine tools and other fields.

Structure: Railway bearings are generally composed of inner ring, outer ring, rolling body and cage and other components. The inner ring is directly connected to the shaft, the outer ring is installed on the wheel, and the rolling body is located between the inner and outer rings, which reduces friction through rolling and maintains the normal operation of the bearing.

Product Description:1mm feet galvanized roofing board is suitable for factories where the production process will produce a certain amount of heat and humidity, such as food processing plants, textile factories, etc.

A single-row tapered roller bearing has an outer ring, and its inner ring and a group of tapered rollers are enclosed by a basket cage into an inner ring assembly, and the outer ring and the inner ring assembly can be separated. In addition, single-row tapered roller bearings can adjust the size of the clearance during installation.

In order to ensure the performance and service life of rotary support bearings, it is necessary to pay attention to the following points: correct selection of suitable bearing models and specifications, reasonable design and arrangement of bearing bearings and lubrication systems, regular inspection and maintenance of bearings, timely replacement of severely worn parts, to avoid overload and overspeed operation, to prevent dust and dirt intrusion into the bearing interior.