The temperature difference between the bearing ring and the shaft or bearing seat required for thermal installation is mainly determined by the interference and the diameter of the bearing fitting. Several cuts are provided on the shoulder of the housing. Otherwise, it is difficult to ensure that the bearing repair has The desired effect. In addition to economy, bearing repair has its technical nature. The disassembly of the cylindrical bore bearing and the disassembly of the inner ring can be pulled out by a press machine.
This requires the repairer to fully understand the corresponding technical requirements of the bearing, and the characteristics of the structure, process and material of the bearing and its parts. It also brings convenience to manufacturers who use ball mills.
When selecting the rolling bearing type of the rolling bearing manufacturer, the working load (size, nature, direction), speed and other requirements of the bearing should be considered. At this time, pay attention to let the inner ring bear its pulling force. Rolling bearing manufacturers disassemble the outer ring of the interference fit, and set several screws for Mechanical roller bearing manufacturers extruding the outer ring on the circumference of the outer ring in advance, and tighten the screws evenly while disassembling.
When heating the bearing, it must be heated evenly, and there must be no local overheating. The method of drawing after heating the part in a short time to expand the inner ring. Oil pressure is applied through the oil hole provided on the shaft to make it easy to draw.Rolling bearing manufacturers use rolling bearings to save a series of complex maintenance processes such as smelting, casting and scraping of babbitt alloy materials, as well as oil supply and water supply cooling systems, so the maintenance volume is greatly reduced.
For rolling bearings with a large width, the hydraulic method and the drawing fixture are used together for disassembly. And because the rolling bearing is manufactured by a professional manufacturer, the quality is often guaranteed. These screw holes are usually covered with blind plugs and separable bearings such as tapered roller bearings..
The heating temperature of open bearings must not exceed 120°C. It is not recommended to heat bearings with seals and dust covers above 80°C (make sure that the temperature does not exceed the allowable temperature of seals and grease). The oil pressure method is used for the inner ring disassembly of large bearings. Use spacers to remove them with a press or gently tap them. The inner ring of NU and NJ cylindrical roller bearings can be disassembled by induction heating. Rolling bearing manufacturers usually, for the installation of larger bearings, it is impossible not to heat the bearing or bearing seat, because as the size increases, the greater the force required for installation.