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The performance of rolling bearings is largely dependent on its material properties. FAG is usually low alloy, high purity quenched steel for manufacturing bearing rings and rolling of the material. To withstand high impact load and alternating bending bearing stress, the use of carburized steel. In recent years, due to the quality of bearing steel continuous improvement (of course, prices have been rising), FAG was able to make a substantial increase in the bearing capacity. Research and practical experience have proved that the now standard results of rolling bearing steel, in good lubrication, clean environment and load under the condition of small, can reach the infinite fatigue strength. Heat treatment process of FAG rolling bearing rings and rolling elements bearing in the 150 degrees to ensure, dimensional stability. For higher operating temperature, need to use special heat treatment. If the bearings used in corrosive environments, is in need of bearing steel with corrosion resistance. Standard bearing stainless steel in the code to add the prefix "S" and the suffix "W203B". The main dimensions of the bearing and the bearing steel bearings and bearing capacity is the same. In order to maintain its corrosion resistance, the surface can not be damaged in the process of installation and use. The production of FAG silicon nitride ceramic bearing ball for. Ceramic balls are much lighter than steel, centrifugal force and friction is also compared with the small ball. This bearing is still in grease lubrication at high speed, and long service life, low working temperature.
SKF spherical roller bearing complementary code, suffixes used to identify certain features of spherical roller bearing, open design including SKF spherical roller bearings, the sealed spherical roller bearing, vibration machinery bearings: C2: radial clearance is less than the ordinary group C3: radial internal clearance greater than the ordinary group of C4: C5: C3 radial internal clearance greater than radial internal clearance greater than C4 C08: rotation accuracy to ISO tolerance level of 5 C083:C08+C3 C084:C08+C4 2CS: hydrogenated nitrile rubber bearings on both sides with a steel framework (NBR) contact seal ring. Outer ring with a lubrication groove and three lubrication holes, and is composed of a plastic belt cover. 2CS2: fluorine rubber bearings on both sides with a steel framework (FPM) contact sealing ring. Outer circle with a lubrication groove and three lubrication holes, and is composed of a plastic belt cover. 2CS5: hydrogenated nitrile rubber bearings on both sides with a steel framework (HNBR) contact seal. Same as 2CS2 HA3 K: the inner ring surface hardening: conical hole, taper: 1:12 K30: conical hole, taper: 1:30 P5: dimensional accuracy and rotation accuracy to ISO tolerance class 5 P6: dimensional accuracy and rotation accuracy to ISO tolerance class 6 P62:P6+C2 VA405: bearing vibration machinery, surface hardening of the cage VA406:VA405 and inner hole with polytetrafluoroethylene (PTFE) coated VE552 (E): the outer side with three threaded holes average published heavy device to connect; E said bearing equipped with lifting bolt VE553 (E): the same as VE552, but both sides are threaded hole VG114: stamping steel surface hardening holder VQ424: rotation accuracy is higher than C08 W: no lubrication groove and lubrication hole in the outer ring W20: outer ring with three lubrication holes W26: inner ring with six lubrication holes W33: outer ring with a lubrication groove and three lubrication holes in W64: Note bearing W77 solid oil: the same as W33, but the lubrication holes even plug W513:W26+W33 235220: surface hardening the inner, inner hole with spiral groove.