Bearings can be roughly divided into three types: rolling bearings, plain bearin
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234407BM 234706BM 234406BM 517/2860V/YA 5610/2500 517/1720X1V 527/1181M 510/1180M 517/930 510/670 590/560 510/500 52780 59080 517/368M 51760U 517/238 6207-2ZN 6206-2ZN 6205-2ZN 6204-2ZN 6203-RZ 6203-2ZN 6202N 6202-2ZN 6201-2ZN 6200ZZ 6200-2ZN 62/32-ZN 62/32-Z 62/32N 62/32-2Z 62/32-2RZ 62/32-2RS 62/28-2RZ 62/22-2RZ 61996 61992 61988 61984
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Bearings can be roughly divided into three categories: bearings, plain bearings and electromagnetic bearing. In this paper, to introduce information about Rolling aspects.
The rolling bearing is a high degree of standardization of mechanical parts, with a variety of sizes and levels of precision series models can be considerable scope to meet the requirements of the various mechanical bearings. Rolling bearing maintenance is very simple, very wide range of applications.
Bearing structure is characterized by rolling element placed in the relative motion between the two rings, therefore, scroll skf bearing friction coefficient is small compared with sliding bearings, and consume less power and high efficiency advantages.
Put it plainly, Rolling general composition of the outer ring, inner ring, rolling element and cage of four parts, alloy steel used. The mid-1990s, ceramic rolling bearing has come out. The trial showed that the ceramic rolling bearing has the following advantages:
First, because of the ceramic is almost afraid of corrosion, so the ceramic rolling ina bearings suitable for operating in harsh conditions covered with corrosive media.
Second, because the density of the ceramic rolling the ball lower than steel and much lighter weight but also rotates the centrifugal effect of the external ring can be reduced by 40%, thus greatly extended service life.
Third, the ceramic thermal expansion and contraction than steel, and thus bearing clearance that allows fag bearing in the more dramatic changes in temperature environment.
Fourth, because of the high elastic modulus of ceramic steel, the force is not easy deformation, and therefore help to improve the pace of work, and achieve high accuracy.
Foreign countries have successfully developed a solid lubricant under high temperature ceramic rolling bearing, but also the use of liquid or grease lubrication of special steel and ceramic combination of rolling bearings or ceramic rolling bearings.
It comes to the manufacture of ceramic rolling ntn bearing materials, silicon nitride ceramics. According to the information reported, the two Nova rise of modern ceramics - silicon nitride and silicon carbide have amazing resistance to high temperature. Silicon nitride ceramic at 1400 ° C, silicon carbide ceramics at 1700 ℃, the intensity is still as high per square centimeter 7000kg, while most metals this time has long been softened or melted into liquid.
The rolling bearing is a high degree of standardization of mechanical parts, with a variety of sizes and levels of precision series models can be considerable scope to meet the requirements of the various mechanical bearings. Rolling bearing maintenance is very simple, very wide range of applications.
Bearing structure is characterized by rolling element placed in the relative motion between the two rings, therefore, scroll skf bearing friction coefficient is small compared with sliding bearings, and consume less power and high efficiency advantages.
Put it plainly, Rolling general composition of the outer ring, inner ring, rolling element and cage of four parts, alloy steel used. The mid-1990s, ceramic rolling bearing has come out. The trial showed that the ceramic rolling bearing has the following advantages:
First, because of the ceramic is almost afraid of corrosion, so the ceramic rolling ina bearings suitable for operating in harsh conditions covered with corrosive media.
Second, because the density of the ceramic rolling the ball lower than steel and much lighter weight but also rotates the centrifugal effect of the external ring can be reduced by 40%, thus greatly extended service life.
Third, the ceramic thermal expansion and contraction than steel, and thus bearing clearance that allows fag bearing in the more dramatic changes in temperature environment.
Fourth, because of the high elastic modulus of ceramic steel, the force is not easy deformation, and therefore help to improve the pace of work, and achieve high accuracy.
Foreign countries have successfully developed a solid lubricant under high temperature ceramic rolling bearing, but also the use of liquid or grease lubrication of special steel and ceramic combination of rolling bearings or ceramic rolling bearings.
It comes to the manufacture of ceramic rolling ntn bearing materials, silicon nitride ceramics. According to the information reported, the two Nova rise of modern ceramics - silicon nitride and silicon carbide have amazing resistance to high temperature. Silicon nitride ceramic at 1400 ° C, silicon carbide ceramics at 1700 ℃, the intensity is still as high per square centimeter 7000kg, while most metals this time has long been softened or melted into liquid.
