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ZYS successfully completed the installation of SRB wind power main shaft bearing

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On December 13, 2022, Luoyang Bearing Research Institute Co.,Ltd successfully completed the installation and application of the first domestically produced self-aligning roller bearing for wind power main shafts with the largest size.

This set of wind power main shaft bearings 240/1180 (self-aligning roller bearings), with an inner diameter of 1180mm and an outer diameter of 1660mm, can meet the needs of main shaft bearings for 5-8MW land-based wind power generators.

The main shaft bearing of wind power is the core component of the wind turbine. In addition to being affected by the wind load in the wind turbine, it also bears the gravity load of the main shaft and the impeller. The working conditions are complex, and it needs to have good impact resistance, flexible centering performance, Excellent raceway fatigue resistance.

By overcoming heat treatment deformation, controlling the internal structure of materials, cold working dimensional accuracy, optimizing rolling body modification and special surface treatment, ZYS Bearings can solve boundary friction and lubrication after the intervention of external pollutants, effectively ensuring the long life of spindle bearings for more than 20 years and high reliability requirements.

In recent years, in terms of new product research and development, Luoyang Bearing Research Institute Co.,Ltd has successively developed the first domestically produced 4.5MW, 7MW, and 10MW main shaft bearings (single-row tapered roller bearings) for installation and application. At the same time, the high operation and maintenance costs of wind power main bearings The characteristics of wind power main shaft bearing residual life prediction system was developed.

In terms of industrialization, ZYS Bearings has realized batch supply of main shaft bearings for 5-7MW double-fed models (spherical roller bearings) and semi-direct drive models (tapered roller bearings).

Since the upgrade of management in June 2022, ZYS Bearings has increased its investment in the industrialization of wind power bearings. Currently, it has an annual production capacity of 1,500 sets of wind power main shaft bearings, yaw pitch bearings, gearboxes and motor bearings. In the future, Axis Technology will continue to innovate in science and technology to help achieve the goal of “double carbon”.

XRB Optimized Spherical Roller Bearing Manufacturer

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CoatMaster spherical roller bearing, The High quality design of XRB for top quality demand market, CoatMaster will be start its industrial service for the high end market in the world. it quality can meet 70% of FAG. we will introduce CoatMaster quality in coming news of XRB.

Spherical roller bearing also named self aligning roller bearing, it is a kind of radial bearing, It can bear radial load and two direction radial and axial load, The spherical roller bearing has larger radial bearing capacity and the function of self-aligning, Lower requirements for machining accuracy of casing. So this factor can Avoid installation error or shaft deflection affecting the use of bearings and Moreover, it has high resistance to vibration and impact.

The structure type of double row develops rapidly, From the initial use of asymmetrical spherical roller to the later use of symmetrical spherical roller, The symmetrical spherical roller bearing changes the situation that the force on the middle flange of the inner ring is large, Make the roller stress concentrate on the maximum diameter of the roller, The thickness of the middle retaining ring is reduced, the length of the roller is increased correspondingly, and the bearing capacity is improved, we call this enhanced type spherical roller bearing, the suffix will be C or CA.

Like the self-aligning ball bearing, the Spherical roller bearing also has the self-aligning property, However, due to the large contact surface between the roller and the raceway, its friction capacity is much higher than that of the self-aligning ball bearing. Because the self-aligning roller bearing also has great friction resistance in rotation, the limit speed of this kind of bearing is lower than that of the ball bearing, However, it is different from the line contact between the roller and the raceway in the tapered roller bearing, and the limit speed is higher than that of the tapered roller bearing.

Common structure types of self aligning roller bearing1.Basic type of spherical roller bearing 20000C, Asymmetric spherical roller bearing Type 20000
2.Tapered bore spherical roller bearings 20000CK (1:12) and 20000 CK30 (1:30). This kind of bearing is installed on the tapered shaft by the taper of inner diameter, Using the axial displacement of the bearing to meet the requirements of the interference with the shaft. It avoids the complex operation of heating installation due to large interference and the problems of easy installation and hard dismount. Of course, the increase of interference will correspondingly reduce the radial clearance of the bearing.

The structure of the tapered bore spherical roller bearing acting together with the adapter sleeve is 20000C + H000 type. The model of H000 Adapter sleeve has been generalized and standardized, and can be used with bearings with various tapered bore. This kind of structure bearing can be installed on the optical shaft without shaft shoulder, which meets the requirement of adjusting the fit interference, and avoids the difficult problem that the taper angle of the tapered shaft is difficult to control, which makes the bearing installation and dismount more convenient.

XRB is the China bearing manufacturer & exporter & supplier, it can supply spherical roller bearing, our large quantity Electrically insulated Cylindrical Roller Bearing Stock can meet your need with good quality and fast delivery, Also you can find sealed spherical roller Bearing, the stainless steel spherical roller bearing, single row spherical roller bearing. spherical roller thrust roller bearing. Electrically Insulated bearing, the other type and brand Electrically insulated Cylindrical Roller bearing, insocoat tapered roller bearing, Current-Insulated Bearings.