Installation and Disassembly Process of "SKF Bearings in Motors and Generators"

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When dealing with large bearings, the force required for installation increases significantly due to their size. It is often difficult to press them onto a shaft or into a housing manually. Therefore, it is recommended to use a thermal device. If the bearing has an interference fit with the shaft, the bearing should be heated. Conversely, if the interference exists between the bearing and the housing, the housing should be heated instead. For small and medium-sized bearings, most can be removed using a standard puller. SKF recommends using TMM series pullers, which are self-centering and equipped with a spring-loaded arm to make the disassembly process easier. In special cases where the inner or outer ring cannot be accessed directly, a specialized internal bearing puller may be used. For cylindrical roller bearings, the inner ring is typically removed using thermal methods. SKF has developed a range of induction heating tools specifically for this purpose. If you frequently need to remove inner rings of various sizes, the adjustable induction heating device from SKF is a fast and efficient solution. When installing smaller bearings, the force required increases as the bearing size grows. If there's an interference fit between the bearing and the shaft, heating the bearing is advised. If the interference is between the bearing and the housing, then the housing should be heated. SKF offers a wide range of heating solutions that ensure proper and safe installation. The SKF electric heating plate is a professional tool designed for preheating small bearings before installation. For bearings with a bore diameter less than 50 mm, cooling methods such as the TMFT device can be used. Bearings with a bore diameter of around 100 mm are usually installed using mechanical or hydraulic presses. For medium-sized bearings up to 100 mm, cold installation techniques with mechanical or hydraulic equipment are commonly employed.

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