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S623 2RS Fishing Reel Bearings 4*7*2.5mm MR74 bearings are produce with stainless steel 440 material ,we are produce bearings with high speed and low noise ,free sample can be provide before order . more
bigtits sex, The automobile water pump bearing is shaft connecting with bearing ，the material of bearing and shaft is Chrome steel Gcr15 ,the material of the cage is usually used by reinforced nylon 66. The material of the sealing ring is generally nitrile rubber. When the requirements are higher, the fluorine rubber sealing ring can also be used.