2014年7月6日星期日

fracturing proppant Coefficient of thermal expansion

Advantages of ceramic ball bearings 15.
High temperature
Coefficient of thermal expansion of the ceramic balls, in a high temperature environment because of the temperature does not cause expansion of the ball bearing, thereby greatly enhancing the use of the temperature of the bearing, 
oil fracturing proppantplain bearing temperature of 160 degrees, the ceramic balls can reach 220 degrees Celsius. MA 13-967-37-76-90
High speed
Ceramic balls with oil-free self-lubricating properties, low coefficient of friction ceramic balls, ceramic ball bearings therefore has a high speed, according to statistics with ceramic ball bearings are generally bearing speed 1.5 times more speed.
Ceramic ball can not add any oil, grease means that even kill, acid fracturing bearing still able to operate, thus avoiding the occurrence of fat to get rid of because of premature bearing damage caused by the phenomenon of ordinary bearing. According to our testing and feedback from some of our customers use ceramic ball bearing service life is 2-3 times more common after bearing.
Insulation
Finally and most importantly, insulation, ceramic ball bearings, the bearing can make the insulation between the inner and outer rings, since the ceramic ball insulator between the inner and outer rings of the bearing with ceramic balls, the insulation effect can be achieved. This allows the bearings can be used in a conductive environment. rolling bearing by the rings, rolling elements, retainer, composed grease, seals, when rolling hydraulic fracturing benefits ceramic material, which is defined as the rolling bearing ceramic ball bearings.

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