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Structure and features of seated rolling bearing

by:JNSN     2021-12-27
Rolling bearing with seat is a high-precision component product composed of grease-sealed deep groove ball bearings and bearing boxes of various shapes. The seated rolling bearing can be directly mounted to the main body of the machine or device with a few bolts. It has self-aligning performance and can be replenished with grease. It is a product that is very easy to install and use. The seated rolling bearing consists of a component ball bearing with a spherical outer diameter and a component bearing box with a spherical bearing seat (Figure 1.1). Special features Rolling bearing with seat has many features. In addition, there are many types of seated rolling bearings, and each form has a variety of unique features. Therefore, the most suitable seated bearing should be selected according to the application. High load capacity and high precision: The internal structure of the component ball bearing is the same as that of the single row deep groove ball bearing. It can bear the axial load in two directions while bearing a large radial load. The accuracy of the bearing is the same as that of the general bearing, and it has high rotation accuracy and good high-speed performance. The reasonable self-aligning structure and the most suitable matched rolling bearing with seat have self-aligning performance through the bearing with the spherical outer diameter surface and the bearing box of the belt-shaped bearing seat. Therefore, it is possible to automatically adjust the deviation of the shaft center due to shaft deflection, eccentricity, etc., so that no abnormal load is applied to the bearing, thereby ensuring the original life of the bearing. The spherical outer diameter surface of the bearing is ground, and the spherical bearing housing of the bearing box is also processed with high precision on the boring machine. Therefore, the bearing and the bearing box are optimally matched while exerting a high self-aligning performance. The permissible alignment angle of rolling bearing with seat is 3° for ordinary products and 1° for products with dust cover. High sealing performance: The multiplication effect achieved by the oil seal installed on the outer ring of the bearing and the oil thrower installed on the inner ring of the bearing rolling bearing can effectively prevent the grease inside the bearing from leaking to the outside and prevent external dust , Water, etc. invade the inside of the bearing. The oil seal is made of synthetic rubber with excellent oil resistance. The lip of the oil seal contacts the inner ring of the bearing with the best pressing force. When used in applications with a lot of dust and water, a triple seal assembly (accessory code L3) or a dust cover assembly (accessory code C, CD, FC, FD) is most suitable. The triple seal assembly or the assembly with a dust cover can strongly prevent the intrusion of external dust, water, etc., and extend the life of the bearing. Grease replenishment is easy. The bearing box for rolling bearing with seat is equipped with a grease nozzle, so it is easy to replenish new grease to the bearing in operation. When used in harsh environments such as dust, water, high humidity, high temperature, etc., by replenishing new grease at regular intervals, the bearing can be guaranteed to be in the best lubrication state, thereby prolonging the life of the bearing. When using a centralized oil supply device to supply oil to a bearing with a seat, install a special sleeve on the threaded hole of the grease nozzle set on the bearing box. High-rigidity and high-strength bearing housings for rolling bearing housings are optimally designed to reduce the deformation caused by stress concentration and load, and high-quality materials are selected and produced through high-level casting technology or stamping processing technology. The high-rigidity and high-strength bearing housing prevents abnormal loads from acting on the bearing and prolongs the life of the bearing. In addition, because the surface of the bearing box is painted, it can maintain a beautiful appearance for a long time. Easy to install and use. Various types of rolling bearings with seat can be directly installed on the main body of the machine or device with a few bolts, and can be used directly in this state. In addition, the fit between the inner ring of the bearing and the shaft adopts a clearance fit in principle. Therefore, the seated rolling bearing does not require operations such as filling of lubricant and installation of sealing devices during general bearing installation, so the man-hours can be greatly reduced. There are three ways to fix the bearing and the shaft: ① install the set screw on the wide inner ring of the cylindrical hole, ② install the fastener on the inner ring of the tapered hole, ③ install the eccentricity on the wide inner ring of the cylindrical hole Fixed ring. No matter what method, the bearing and shaft can be fixed easily and reliably.
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