Full complement bearing.com/cylindrical-roller-bearings.html' target='_blank'>cylindrical roller bearings have high bearing capacity. The new structure design of ribs and roller end faces 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. the performance of the bearing. The following is the analysis of the advantages of Beiren Bearing, a famous cylindrical roller bearing manufacturer. 1. The roller and the raceway are in line contact or trimmed line contact, and the radial bearing capacity is large, which is suitable for bearing heavy loads and impact loads. 2. The friction coefficient is small, suitable for high speed, and the limit speed of precision bearings is close to that of deep groove ball bearings. 3. The N and NU types can move axially, and can adapt to changes in the relative position of the shaft and the housing caused by thermal expansion or installation errors, and can be used as free end supports. 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 for easy installation and removal. Full complement cylindrical roller bearings are also widely used, such as large and medium-sized motors, locomotives, machine tool spindles, internal combustion engines, generators, gas turbines, reduction boxes, rolling mills, vibrating screens, and hoisting and transportation machinery. Full complement cylindrical roller bearings can be divided into different structures such as single-row, double-row and multi-row cylindrical roller bearings according to the number of rows of rolling elements. Different structural bearings are also reflected in the design of the position of the rib. Among them, the commonly used cylindrical roller bearings have the following forms: Single-row cylindrical roller bearings: Single-row cylindrical roller bearings are separable bearings, which are easy to install and disassemble, and both rings can be tightly fitted, modified rollers and rollers. Contact lines between tracks can reduce stress concentrations. Full complement cylindrical roller bearings are designed to withstand heavy loads. Under the same width, this kind of bearing has higher load capacity compared with the traditional bearing with cage, and the radial section is small, which can save space, but the rotation speed is relatively low. Full complement cylindrical roller bearings are also relatively widely used. 1. The installation of the bearing must be carried out in a dry and clean environment. Before installation, the machining quality of the mating surfaces of the shaft and the housing, the end faces of the shoulders, the grooves and the connecting surfaces should be carefully checked. All mating surfaces must be carefully cleaned and deburred, and unmachined surfaces of castings must be free of sand. 2. Before installing the bearing, it should be cleaned with gasoline or kerosene, used after drying, and ensure good lubrication. The bearing is generally lubricated with grease, but also can be lubricated with oil. When using grease lubrication, the grease with excellent performance such as no impurities, anti-oxidation, anti-rust and extreme pressure should be used. The filling amount of grease is 30%-60% of the bearing and bearing housing volume, and should not be too much. The double row tapered roller bearing with sealed structure and the water pump shaft bearing have been filled with grease, which can be directly used by the user and cannot be cleaned again. 3. When the bearing is installed, an equal pressure must be applied on the circumference of the end face of the ferrule, and the ferrule must be pressed in. Do not directly tap the end face of the bearing with tools such as a hammer to avoid damage to the bearing. In the case of a small amount of interference, the end face of the bearing ring can be pressed with a sleeve at room temperature, and the sleeve can be hit with a hammer head to press the ring evenly through the sleeve. If installed in large quantities, hydraulic presses can be used. When pressing in, it should be ensured that the end face of the outer ring and the end face of the shoulder of the shell, and the end face of the inner ring and the end face of the shaft shoulder are pressed tightly, and no gap is allowed. 4. When the amount of interference is large, it can be installed by oil bath heating or sensor heating bearing method. The heating temperature range is 80°C-100°C, and cannot exceed 120°C. At the same time, tighten the bearing with nuts or other suitable methods to prevent the bearing from shrinking in the width direction after cooling and causing a gap between the ring and the shaft shoulder. 5. The clearance of single row tapered roller bearings should be adjusted. The clearance value should be determined according to different operating conditions and the size of the interference. When necessary, tests should be carried out to determine. The double-row tapered roller bearing and the water pump shaft bearing have been adjusted for clearance at the factory, and do not need to be adjusted during installation. 6. After the bearing is installed, the rotation test should be carried out. First, it should be used for the rotating shaft or bearing box. If there is no abnormality, it will be operated with power without load and at low speed, and then gradually increase the rotation speed and load according to the operation conditions, and detect noise, vibration and If the temperature rises and an abnormality is found, the operation should be stopped and checked. It can be delivered for use only after the running test is normal.
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