Bearing knowledge / Automotive water pump bearing material selection and heat treatment
Date: 2013-10-04
Automotive water pump bearing material selection and heat treatment
Use conventional shaft bearing steel (including shafts, outer ring, Ball & Roller) high carbon chromium bearing steel (GCr15). Automotive water pump bearing
Because high-quality bearing steel smelting by vacuum deoxidation, electromagnetic stirring, oxide content is less, the contact pressure can withstand greater stress while the hypervariable withstand greater tensile stress by heat treatment, the hardness of the shaft raceway to 58-62HRC. Department raceway hardness of 60-64HRC, ball and roller hardness is 61-65HRC. When the shaft, outer carburizing bearing steel, the raceway hardness of 60-64HRC. Cage material usually used reinforced nylon 66, a ring of material generally use NBR, when asked high, can also be used Viton seals.
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