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6203 Hybrid Ceramic Bearing 17*40*12 mm ABEC-1 ( 1 PC) Industry Motor Spindle 6203HC Hybrids Si3N4 Ball Bearings 3NC 6203RS
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Customer Reviews
Not recommended. Bearings have either contamination in the grease, or are pitted. If it's contamination in the grease, I am afraid it might be ceramic particles. Both bearing have the same issue. During installation bearings pressed on as expected, however after I held the bearing in my hand and spun the shaft with my fingers, I could feel both bearings were catching slightly. After initial reassembly and run, the bearings are making a "clicking sound", this will cause the bearing to fail prematurely, also making them as noisy at high speed. Right now it's anyone's guess how long they will last, and servicing this particular motor is a "real pain", so I wanted a bearing that would last at least three times longer than standard steel factory bearings.
arrived 2 weeks after they got shipped. great packaging and excellent service especially in communications. items are accurate to what have been described.