We must first understand the entire mechanical equipment (composition: drive device, speed change device, etc.), and then inspect the degree of friction between the machined surface of each part and the bolt (composition: head and screw). The outer ring of the bolted roller bearing adopts the full complement cylindrical roller bearing with thick outer ring wall. With this outer ring, the rollers can roll directly on the raceway and can withstand heavier loads and shock loads. 2. During mechanical installation, dry oil should be applied to the fixed contact surface, and thin oil should be applied to the movable surface. In particular, after the bearing is installed, the outer ring must be slanted and coated with lubricant for the bearing (function: it can reduce or avoid friction and wear). 3. The lubricant coating of the bearing is also very particular. When applying grease lubrication, it covers all the roller surfaces. After coating, the position of the outer ring is restored. It is also necessary to use plastic (structure: synthetic resin, plasticizer, stabilizer) , color material) film (thin and soft transparent sheet), etc. to cover dust. 4. Pay attention to cleaning the bearing in daily use, first put the bearing in the oil, then use a brush to brush off the dirt on the bearing surface, then properly heat the oil, and then clean the balls and holes inside the bearing in detail. . Characteristics of bolted roller bearings: 1. High speed 2. Can withstand higher radial load (larger than the radial load of other bearings with the same radial specification) 3. Cannot bear axial load 4. The rigidity is relatively high The high-combination bolted roller bearing is a bearing module composed of a radial bolted roller bearing and a thrust bearing. It has a compact structure, small volume, high rotation accuracy, and can withstand a certain axial load in addition to a high radial load. And the product structure is diverse, adaptable and easy to install. Combined bolted roller bearings are commonly used in various mechanical equipment such as machine tools, metallurgical machinery, textile machinery and printing machinery, and can make the mechanical system design very compact and dexterous. Bolted roller bearings have thick outer side walls, needle roller busbars contain convexity, and the raceway surface of multi-head bolts has been hardened and has a certain toughness, which can withstand impact loads. If there are bumps, rust layers, wear debris, sand, dust and mud on the surface of the roller bearing assembly and the parts that match it, firstly, the bearing equipment is difficult, resulting in the wrong assembly position; secondly, this attachment is composed of Abrasive and easy-to-wear roller bearings will affect the quality of the assembly. Therefore, before the equipment, the appearance of the shaft journal, the bearing housing shell hole, the inner hole of the shoulder, and the matching appearance of the butt parts such as bushings, washers, end covers, etc., should be checked carefully. If there is a rust layer, it can be removed with a fine file, polished with a fine emery cloth, and the attachments on the surface of the bearing assembly and the butt parts should also be removed. Notes on the use of bearings: Bearings are delicate components, and their use must be terminated relatively carefully. No matter how high-performance bearings are used, if they are not used properly, the expected high performance will not be obtained. The precautions for the use of related bearings are as follows: 1. Hold the bearing and clean around it. Even small floating dust that cannot be seen by the eyes will affect the roller bearing. Therefore, it is necessary to keep cleaning around so that the floating dust will not invade the bearing. 2. Use it carefully. Give the bearing a violent impact during use, which will cause scars and indentations, which will become the cause of the accident. In severe cases, cracks and ruptures may occur, so be careful. 3. Proper operating tools. Avoid replacing current tools with the right tools. Such as special sleeves, presses, etc. 4. Corrosion of bearings. When handling INA bearings, sweat in your hands can become the cause of rust. Be careful to operate with clean hands and gloves should be worn. 5. Before the preparatory work is carried out, it is not necessary to disassemble the packaging of the bearing to prevent environmental pollution. The life of the roller bearing is more sensitive to the load ratio and the rotational speed. Therefore, for multi-stage transmission shafts, if possible, a large deceleration should be placed in a later stage; for the main shaft bearing, if possible, the external load action point should be properly allocated. The interval between the bearing fulcrums tries to reduce the load on the spindle bearing, and tries to stabilize the load on the spindle bearing to avoid shock and vibration. Proper selection, the equipment precision of the bearing is excellent. The shaft parts of the machine tool, especially the main shaft, are generally assembled with bearings or drag bearings, and rotate at a high speed, sometimes causing high heat. If this phenomenon is not removed in time, it will cause the bearing to overheat, and the temperature of the opposite parts of the machine tool will rise, resulting in thermal deformation. Burn the bearing.
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