A full complement cylindrical roller bearing is a bearing with spherical balls installed between the inner ring of the two raceways and the outer ring of which the raceway is spherical. The center of curvature of the outer ring raceway surface is the same as the center of the bearing, so it has the same self-aligning function as the automatic cylindrical roller bearing. When the shaft and housing are deflected, they can be adjusted automatically without increasing the bearing burden. Spherical roller bearings can withstand radial loads and axial loads in two directions. Large radial load capacity, suitable for heavy loads and shock loads. The inner diameter of the inner ring is a bearing with a tapered bore, which can be directly mounted. Or install it on the cylindrical shaft using an adapter sleeve and a dismantling sleeve. The cages use steel stamping cages, polyamide forming cages and copper alloy turning cages. The full complement cylindrical roller bearing has two structures of cylindrical hole and tapered hole, and the material of the cage is steel plate, synthetic resin, etc. The point is that the outer ring raceway is spherical and has self-aligning properties, which can compensate for the errors caused by non-concentricity and shaft deflection, but the relative inclination of the inner and outer rings should not exceed 3 degrees. It can withstand large radial loads, and can also withstand certain axial loads. The outer ring raceway of this type of bearing is spherical, so it has self-aligning performance. When the shaft is bent or tilted under force, so that the relative inclination of the center line of the inner ring and the center line of the outer ring does not exceed 1° to 2.5°, the bearing can still work. . There are two types of inner holes of full complement cylindrical roller bearings: cylindrical and conical. The taper of the conical bore is 1:1 2 or 1:30. In order to enhance the lubricating performance of the bearing, an annular oil groove and three oil holes are machined on the outer ring of the bearing. This kind of bearing has two types: perforated type and sealed type. The cylindrical roller bearing with drawn outer ring has no inner ring, and the cylindrical roller will directly contact the surface of the shaft, so the machining accuracy and heat treatment hardness of the shaft should be the same as that of the inner ring of the bearing. same. Scope of application: The drawn outer ring cylindrical roller bearing with a cage is suitable for high speed and heavy load, and is mostly used in the gearbox of machine tools, automobiles, motorcycles or textile machinery. Cylindrical roller bearings with stamped rings without cages, because they are filled with cylindrical rollers, are suitable for oscillating working conditions under heavy loads, etc. When the device rotates the full complement cylindrical roller bearing, first fix the dial indicator on the end face of the case, so that the contact head of the indicator moves on the bearing shaft ring raceway to move the bearing, and check the pointer of the dial indicator while moving and changing. The pointer swings, indicating that the shaft ring is not perpendicular to the line next to the shaft. If the casing hole is deep, the extended dial indicator can also be used. This is a good way to test the perpendicularity of the collar to the side line of the shaft. If the bearing device is installed backwards, not only the bearing will not be deformed, but also the joint surfaces will be subject to heavy wear. Because the difference between the shaft ring and the seat ring is not very obvious, special care should be taken during assembly, so as not to appear reversed. When the device is correct, its seat ring should be able to actively adapt to the rotation of the rotating body to ensure that the rotating body is located in the high and low ring raceways. In addition, there should be a gap of 0.2-0.5mm between the seat ring of the self-aligning ball bearing and the bearing seat hole to compensate for the errors caused by the machining of the whole machine and the incorrect installation. When offset, this gap can ensure that it is adjusted automatically, avoiding contact and friction and making it run abnormally. Otherwise, it will cause serious damage to the bearing. 1. The common types of rotating bearings by the ruler detection method: rolling mill bearings, joint bearings, turntable bearings, spherical bearings with seats, thrust ball bearings, one-way bearings, full complement roller bearings, thrust roller bearings, linear movable bearings. For rotating bearings with larger diameters, the gap is larger for direct detection with a narrower feeler gauge. For bearings with smaller diameters, the gap is small and it is inconvenient to measure with a feeler gauge, but the backlash of the bearing must be measured with a feeler gauge with an appropriate thickness. 2. Lead-pressing detection method Using the lead-pressing method to detect the gap of the rotating full complement cylindrical roller bearing is more correct than using a feeler gauge, but it is more troublesome. The aluminum wire used for testing should be soft, and the diameter should not be too large or too small. The diameter of the Z fantasy is 1.5 to 2 times that of the gap. In practice, soft lead wire is usually used for testing. When testing, first open the bearing cover, select a lead wire with an appropriate diameter, cut it into small sections of 15-40 mm long, put it on the journal and the interface between the high and low bearings, cover the bearing cover, and tighten it according to the specified torque. Bolts, then loosen the bolts, remove the bearing cover, use a micrometer to detect the thickness of the flattened lead wire, and find the average value of the bearing top gap. If the top clearance is too small, pads can be added to the joint surfaces of the upper and lower tiles. If it is too large, reduce the pad, scrape and grind or re-water the tile. The circumferential surface of the bearing ring should be well supported and the force should be uniform to reduce deformation and fully utilize the bearing capacity of the high temperature bearing. The ferrule cannot slide in the tangential direction in its mating name, otherwise the mating surface will be damaged. The free end bearing must be able to adapt to the change in the length of the shaft and the bearing seat hole, that is, it must have the ability to adapt to the axial position to swim within a certain range. Care must be taken to make the bearing installation and disassembly easy, saving labor, time and cost.
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