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Materials and parameters of bearing for automobile water pump shaft

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Materials and parameters of bearing for automobile water pump shaft

Date:2018-04-11 Author:泰亚达轴承 Click:

The automobile water pump shaft bearing is a type of bearing. The cage material is usually reinforced nylon 66, and the seal ring material is generally nitrile rubber. When the requirements are higher, fluorine rubber seals can also be used.


     The steel selected for conventional shaft bearings (including shafts, outer rings, steel ball rollers) is high carbon chromium bearing steel (GCr15). Because high-quality bearing steel is smelted through vacuum deoxidation, electromagnetic stirring, and less oxide content, it can withstand greater contact pressure stress while also withstanding greater high variable tensile stress. After heat treatment, the hardness of the shaft raceway It is 58-62HRC. The hardness of the ring raceway is 60-64HRC, and the hardness of the steel ball and roller is 61-65HRC. When the shaft and outer ring are made of carburized bearing steel, the raceway hardness is 60-64HRC. The material of the cage is usually reinforced nylon 66, and the material of the sealing ring is generally nitrile rubber. When the requirement is higher, the fluorine rubber sealing ring can also be selected.


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