Full complement cylindrical roller bearing is a type of bearing, which means that it can accommodate as many rollers as there is no cage. Generally used in machinery, most people only know about bearings, but they still don't know much about full complement cylindrical roller bearings. Next, the editor will introduce the type and basic structure of full complement cylindrical roller bearings. What is a full complement cylindrical roller bearing? Full complement cylindrical roller bearings are designed to withstand heavy loads. Under the same width, this kind of bearing has extremely high bearing capacity compared with the traditional bearing with cage, and the radial section is small, which can save space, but the speed is relatively low. In order to make the bearing work normally, in the case of continuous operation, the bearing must bear a certain minimum load, namely C/P<25. Otherwise, wear will be aggravated due to insufficient lubrication and high-speed operation. All multi-row cylindrical roller bearings have a lubrication groove and lubrication holes in the outer ring. Full complement cylindrical roller bearing type 1. It has two inner rings. The two inner rings are connected by a clamping ring and cannot be separated. . Due to the large distance between the two rows of rollers, it can also withstand overturning moments. There are two retaining grooves on the surface of the outer ring, which can be positioned axially. This type of bearing is equipped with contact sealing rings on both sides and lithium base grease inside, and the operating temperature is limited to -40℃～+80℃. Under certain conditions, this type of bearing does not need maintenance, but when there is water vapor or pollution during operation, and often at medium or high speed, it must be lubricated. When the full complement cylindrical roller bearing is lubricated with oil, the sealing ring needs to be removed, and the grease in the bearing needs to be cleaned. When lubricated with oil, the rotation speed is increased by 30. 2. It is a non-sealed bearing, and the outer ring is integrally split. , and are fixed together by connecting lock pieces, so the outer ring cannot bear the axial load. The inner ring has three ribs. The outer ring has oil grooves and three lubrication holes. This series of bearings is usually oil lubricated. 3. It is a non-sealed bearing, the outer ring has no ribs, and has oil grooves and three lubrication holes. The inner ring has three ribs. A fixed ring is installed in the center of the outer ring between the two rows of rollers, which can prevent the rollers from falling out and keep the bearing as a whole. This series of bearings can allow a certain axial displacement between the shaft and the bearing seat to occur in the bearing. Because it can be used as a floating end bearing. 4. The outer ring has a single rib, and there is a lock ring on the side without the rib, which can be used for one-way positioning of the shaft. The axial clearance 'S' inside the bearing ensures the axial positioning of the shaft relative to the bearing box. 5. It is used for extremely heavy load and low speed applications. It has a self-locking roller set. Even if the inner ring is removed, the rollers will not be scattered. Therefore, this type of bearing is easy to install and disassemble, and can bear one-way axial load. position. Basic structure of full complement cylindrical roller bearing 1. Basic structure of single row full complement cylindrical roller bearing Single row full complement cylindrical roller bearing can bear a large radial load, can also bear a single direction axial load, axial positioning A homogeneous bearing guarantee with a symmetrical layout can be used. NCF 29V and NCF 30V series bearings have two fixed ribs on the inner ring and one rib on the outer ring, and they can only bear the axial load in the direction of the fixed rib of the outer ring. NJ23VH series bearings can bear the axial load acting towards the inner ring rib, and their rollers are fixed in the outer ring, even if the inner ring is removed, it will not come out. In this way, when the two ferrules are tightly fitted, it is also easy to install and disassemble respectively. 2. The basic type of double-row full-complement cylindrical roller bearings. In addition to bearing large radial and axial loads, double-row full-complement cylindrical roller bearings can also withstand overturning moments. Therefore, long-term use as fixed bearings . The outer ring of the NNC 49V series bearing has a lubricating oil groove and several lubricating oil holes, which can also be lubricated in the shaft during operation. Both ends of NNF50B.2LS.V and NNF50C.2LS.V series bearings adopt contact seals, and the seals are filled with grease. In the case of better service conditions, the grease can reach the working life of the bearing. Lubrication is possible through lube grooves and lube holes on the outer ring. If the same several bearings are installed on one shaft, the rotation speed of the outer ring can be different because the outer ring is narrower than the inner ring. This is a bit suitable for the pulley mechanism. In order to make the pulley easily fixed to the bearing outer ring, there are annular grooves on both ends of the bearing outer ring that can be fitted with elastic retaining rings.
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