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• TECHNICAL SPECS Item: S684 2RS CBStructure: Deep GrooveBearing Material: 440C Stainless SteelBall Material:Ceramic Si3N4Bearing Type : Hybrid ceramic ball bearingBore Dia (d): 4mmOuter Dia (D): 9mmWidth (B): 4mmLubrication: Free of Grease Free of RuningMagnetic: littleHardness: 58HRCCorrosion Resistance: GeneralClearance: C0Bearing Grades: ABEC 7 WHAT IS A HYBEID CERAMIC BEARING? A ceramic hybrid bearing is a mix of ceramic balls and chrome steel rings. Advantage (1), hot temperature resistance, ceramic ball thermal growth coefficient is small, within the extreme temperature surroundings won't cause the bearing ball to expand due to temperature, which vastly improves the use temperature of the entire bearing, the temperature of ordinary bearings is set a hundred and sixty degrees, ceramic ball Can reach greater than 220 degrees. (2), the rotation velocity is high, the ceramic ball has oil-free self-lubricating property, and the ceramic ball has a small friction coefficient, so the ceramic ball bearing has a high rotation speed. The bearing utilizing the ceramic ball is the rotation speed of the overall bearing of 1.5 instances or more. (3). Long life, ceramic ball would be added without any grease, which means that even though the grease is dry, the bearing can nonetheless work, thus averting the premature bearing injury brought on by the dry grease in the standard bearing. The examine and some visitor suggestions use the ceramic ball after the bearing life is 2-3 times that of standard bearings.   BEARING STRUCTURE Stainless Steel Hybrid Ceramic Bearing= + Stainless Steel Outer Ring & Inner Ring +Si3N4 Ceramic Balls +Stainless Steel Cage + Metal Seals  

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