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Types of Full Complement Cylindrical Roller Bearings

wallpapers Tech 2020-06-09
Full complement cylindrical roller bearings are designed to withstand heavy loads. At the same width, this type of bearing has a very high load-bearing capacity compared with the traditional type of bearing with a cage. The radial cross-section is small, which can save space, but the speed is relatively low. In order to make the bearing work normally, under continuous operation, the bearing must bear a certain minimum load, that is, C/P<25. Otherwise, wear will increase due to insufficient lubrication and high-speed operation. All multi-row cylindrical roller bearings have a lubrication groove and lubrication hole on the outer ring.
 
Full complement cylindrical roller bearing type
It has two inner rings. The two inner rings are connected together by a clamping ring and cannot be separated. The outer ring has a middle rib that can withstand two-way axial loads and is used as a positioning bearing. Due to the large distance between the two rows of rollers, it can also withstand the overturning moment. There are two stop grooves on the outer ring surface, which can be positioned axially. This type of bearing is equipped with contact seals on both sides and a lithium base inside
Full complement cylindrical roller bearings
Full complement cylindrical roller bearings
Grease, the operating temperature is limited to -40 ℃ ~ +80 ℃. Under certain conditions, this type of bearing does not require maintenance, but when running there is moisture or pollution, and it is often operated at medium or high speed, you must replenish lubrication. In the case of engine oil lubrication, the sealing ring needs to be removed, and the grease in the bearing should be cleaned. When engine oil is used for lubrication, the turnaround is increased by 30%.
NNC/SL01 series full complement cylindrical roller bearings
NNC/SL01 series full complement cylindrical roller bearings are unsealed bearings. The outer ring is integrally split and fixed together by connecting lock pieces, so the outer ring cannot bear axial load. The split outer ring is It is exactly the same, each with a rib, can be used for axial positioning in two directions. Three ribs on the inner ring. The outer ring has oil grooves and three lubrication holes. This series of bearings is usually oil lubricated.
NNCL/SL02 series full complement cylindrical roller bearings
NNCL/SL02 series full complement cylindrical roller bearings are unsealed bearings, without ribs on the outer ring, with oil grooves and three lubrication holes. Three ribs on the inner ring. There is a fixed ring in the center of the outer ring between the two rows of rollers, which can prevent the rollers from falling out and keep the bearings as one. 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.
NCF...V/SL18 type full complement cylindrical roller bearing
NCF...V/SL18 type full complement cylindrical roller bearing, the outer ring has a single rib, and there is a lock ring on the non-rib side, which can be used for unidirectional positioning of the crankshaft. The axial clearance "S" inside the bearing guarantees The axial positioning of the crankshaft moves relative to the bearing box.
NJ…V/SL19 type full complement cylindrical roller bearing
NJ…V/SL19 type full complement cylindrical roller bearing is used for extremely heavy load and low speed. It has a self-locking roller set. Even if the inner ring is removed, the roller will not be scattered, so this type of bearing is easy to install and disassemble. It can bear one-way axial load and make one-way positioning. The dimensional tolerances and geometric deviations of full complement cylindrical roller bearings should conform to GB/T307.1-94 (ISO492-1994) P0 tolerance level, and the normal original radial clearance CO, or C2 to C4 original radial may also be required Clearance bearings. But when ordering, you need to add the corresponding suffix after the bearing code. Rubber and plastic screw extruders generally use C3 group clearance. Mating tolerance can refer to the selection principle of bearing seat tolerance and the selection principle of shaft tolerance limit. Bearings are allowed to bear a certain axial load. Adequate lubrication is a prerequisite for bearing axial loads. The one-way positioning bearing and the positioning bearing must be fully supported by the ribs under axial load. Installation and disassembly, special attention must be paid when installing or removing cylindrical roller bearings, the installation or disassembly force can not be directly transmitted through the cylindrical roller and the ring flange.

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