30X47X17Mm Na 49 Series Needle Roller Bearings With Inner Ring-manufacture,factory,supplier from China

Needle roller bearing is a common mechanical part, which is mainly used to support the movement of the rotating shaft. The working principle of the needle roller bearing is to use the rolling body (needle roller) to roll between the inside and outside, thereby reducing friction and resistance, so that the bearing can withstand larger loads and rotational speeds.The structure of the needle roller bearing is relatively simple, consisting of an inner ring, an outer ring, a needle roller and a cage.

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.

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.

IKO's needle roller bearings have high bearing capacity and fatigue resistance, can run stably for a long time, extend the service life of the equipment, reduce the frequency of maintenance and replacement of bearings, reduce the maintenance cost of the equipment, and improve the reliability and stability of the equipment.IKO's needle roller bearings are widely used in various industrial equipment and mechanical devices, such as automobile engines, aircraft engines, high-speed trains, construction machinery, agricultural machinery and other fields.

Combined needle roller bearings, a special type of bearing, can be added between the inner and outer rings of the needle roller components to achieve balance accuracy, reduce vibration and noise effects.

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.

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.

The separation bearing is composed of a racetrack ring, a needle roller and a cage assembly, and can be used in any combination to thin or thick racetrack rings. The non-separable bearing is an integral bearing composed of precision stamped raceway ring, needle roller and cage assembly that can withstand unidirectional axial loads. This bearing occupies a small space, which is conducive to the compact design of the machine.

The working principle of needle roller bearings is to use rolling friction to reduce friction and resistance. When the bearing is subjected to axial or radial load, the needle roller rolls between the inner and outer rings, thereby reducing friction and resistance.

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.

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.

IKO is a well-known manufacturer specializing in the production of various types of needle roller bearings, and its needle roller bearing products enjoy a high reputation around the world. IKO's needle roller bearings have a variety of excellent characteristics, and the following will describe the characteristics and applications of its needle roller bearings in detail.First of all, IKO's needle roller bearings are made of high-quality materials, have extremely high wear resistance and corrosion resistance, and can operate stably in a variety of harsh environments.

Strong bearing capacity: Due to the large number of needle roller, needle roller bearings have a high bearing capacity, suitable for bearing large radial and axial loads. (2) Small starting torque: the friction inside the needle roller bearing is small, and the starting torque is small, making the starting speed of the bearing faster. (3) Simple structure: The structure of needle roller bearings is relatively simple, easy to install and maintain, and low cost.

This type of bearing is widely used in industrial automatic robots, working machinery and medical facilities, where high rigidity, tightness and high speed are required to ensure accuracy.

This bearing adopts ceramic rolling element (ball or roller) made of Si3N4 material; It has excellent insulation performance, its capacitance is basically 40pf, and the insulation performance is better than that of coated bearings. At high temperature, the DC impedance can also reach the range of G ohms, and has good insulation performance. Ceramic rolling element has excellent wear resistance and low lubrication requirement. Especially suitable for high-speed, low friction, low temperature operation; It works well under dry friction conditions.

Product Description:The 10-foot galvanized roofing sheet, which is 10 feet long, provides a large coverage area after installation and reduces splicing, thus enhancing the integrity and stability of the roof structure.

Linear bearings with flanges Performance: Linear bearings are a linear motion system produced at a low cost for use with unlimited travel and circular shafts. Because the bearing ball is in contact with the shaft dry point, the load is small. The steel ball rotates with very little friction resistance, thus achieving smooth motion with high precision.Flanged linear bearing series Specification classification :LME, LMK series LMH series LMFP, LMKP series with flanged linear bearing LMHP series with flanged linear bearing LME.LLMK.L series LMH.L series LMFP...

INA bearings schaeffler group is a leading manufacturer of almost all bearing types.We are INA bearing manufacturer and can provide a full range of INA bearings. For example: INA ball bearings,INA cam follower，INA thrust bearing，iINA spherical plain bearings，INA flange bearing，INA banded thrust bearing.The following is a detailed introduction about some INA bearings, if you want to know more, please contact us, we have 24 hours online service.INA Thin Section BearingsINA Thin-walled bearings are high-precision products with low operating noise and high load carrying capacity.

The structure of Koyo tapered roller bearings mainly includes an outer ring, an inner ring, a rolling body (roller) and a cage. The rolling element is located between the inner ring and the outer ring and is kept in the specified axial position by the cage. The contact Angle between the inner ring and the outer ring is generally between 10° and 30°, and different contact angles will affect the bearing capacity and speed limit.

High load capacity: Thanks to the angular contact design, NTN angular contact ball bearings perform well in terms of load capacity and are suitable for high-speed operation and high-power transmission.High precision: NTN angular contact ball bearings are manufactured with high precision, which can ensure their stability, low noise and high performance during operation.High temperature resistance: NTN angular contact ball bearings are usually made of high temperature wear-resistant materials, which can maintain good operating performance in high temperature environments.High speed: NTN angular

Flanged linear bearings can also withstand large loads and moments. Its internal structure has been precisely designed and made of high-strength materials to maintain stability under high speed and high load operating conditions. Therefore, in heavy machinery equipment and construction machinery, flanged linear bearings are often used to withstand the weight of goods and the inertial force brought by movement to ensure that the mechanical system is always in a safe and stable state.The role of linear bearings mainly includes support, guidance and load bearing.

UBC bearing adhering to the "customer first, quality first" business philosophy, is committed to providing customers with the best quality products and services. The company adopts advanced production equipment and strict quality control measures in the manufacturing process to ensure stable and reliable product quality.

FAG bearings are widely used.Including bicycles, food and beverage industries, electrical appliances, furniture industries, chemical and electroplating industries, paints and dyes, textile industries, automobiles, motorcycles, pumps, fans, water treatment, pharmaceutical industries and many other industrial applications.We can provide FAG deep groove ball bearings, tapered bearings, etc.If you need FAG bearings, please feel free to contact us.NameModelTitleFAG 3205 Bearings3205Original Fag Made In Germany angular contact ball bearing 3200 3201 3202 3203 3204 3205FAG 3210 Bearings3210

Single direction thrust ball bearings:consist of two washers with raceways and balls guided b a cage. Washers have flat seating surfaces, and that is why they must be supported so that all balls can be evenly loaded. Bearings carry the axial load only in one direction. They are not able to carry radial forces. Double direction thrust ball bearings:have two cages with balls between the central shaft washer and two houding washers with flat seating surfaces. The shaft washer has raceways on both sides and is fixed on the journal.