1. The rolling elements are radial rolling bearings of cylindrical rollers. The internal structure of cylindrical roller bearing adopts rollers arranged in parallel, and spacers or spacers are installed between the rollers, which can prevent the inclination of the rollers or the friction between the rollers, and effectively prevent the increase of the rotational torque. 2. Product parameters: Old model: 42505eh Thickness: 18 Accuracy grade: p0 Use: Construction machinery Rolling body type: Cylindrical roller Sample or spot: Spot Rolling body row number: single row Use characteristics: high-speed cage and its material: n yellow Copper solid bearing material: bearing steel Seal cover: no seal 3. Cylindrical roller bearing features: 1. The roller and the raceway are in line contact or trimmed line contact, and the radial bearing capacity is large, suitable for bearing heavy loads and shock loads . 2. The friction coefficient is small, suitable for high speed, and the limit speed is close to that of deep groove ball bearings. 3. The n-type and nu-type can be moved axially, which can adapt to the change of the relative position of the shaft and the shell caused by thermal expansion or installation error, and can be used as a free end support. 4. The processing requirements for the shaft or seat hole are high. After the bearing is installed, the relative deflection of the outer ring axis should be strictly controlled to avoid contact stress concentration. 5. The inner ring or outer ring can be separated, which is convenient for installation and disassembly. 4. Characteristics of cylindrical roller bearings: The cylindrical roller is in line contact with the raceway, and the radial load capacity is large. Suitable for both heavy loads and shock loads, as well as high-speed rotation. Cylindrical roller bearing raceways and rolling elements are geometric. After the improved design, it has higher bearing capacity. The new structural design of the rib and the roller end face not only improves the axial bearing capacity of the bearing, but also improves the lubrication conditions of the contact area between the roller end face and the rib. performance of bearings. 5. The method of adjusting the radial clearance of cylindrical roller bearings: the commonly used methods for adjusting the radial clearance of full complement cylindrical roller bearings are as follows: 1. For the side clearance of cylindrical and elliptical bearing bushes, manual grinding and scraping or bearing Adjustment of the method of trimming after faceting and pad turning. 2. For the top clearance of cylindrical and elliptical bearing bushes, manual grinding and scraping can be used or the method of adding pads to the middle face of the bearing when the situation permits. 3. For the fixed bearing bush with multiple oil wedges, in principle, it is not allowed to repair and adjust the bearing bush clearance. If the clearance is not suitable, the new pad should be replaced. 4. For multi-oil wedge tiltable bearing pads, scraping pads are not allowed to be repaired, and the pads should be replaced when the clearance is not suitable. For tiles with adjustable thickness, the amount of tiles can be adjusted by adding a stainless steel pad under the adjustment block behind the tile, or by reducing the thickness of the adjustment block. Note that for multi-oil wedge tiltable bearing pads, the thickness error between the pads in the same group should be less than 0.01mm.
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