Select roll bearing method

Roll ( gǔn) Bearing ( 轴承) The size of the mill installation ( ān zhuāng) Space ( 空间) The limit ( Bearing inside diameter, outside diameter, The outer diameter) Depends on the roll neck and roll diameter, 直径) ） , bearing the cross section of small high, belong to the thin wall bearing, and they have to bear larger radial load, so use ( 使用) Multiple columns roller bearings. Thin wall bearings manufacturer of angular contact ball bearings can match the optimal number of balls and the contact Angle of 30 °. They support radial load is higher than contact bearing deep groove ball bearings or four o 'clock, and can support comes from the same direction of axial load. In view of the special demand, at present mainly adopts four row cylindrical roller bearings, 轴承) And four row circular cone roller bearings, also USES double row cylindrical roller bearings, double row tapered roller. Tapered roller bearings are mostly adopts pillar hollow roller and cage, to improve the bearing lubrication ( lubrication) Conditions ( 挑剑) Cylindrical, bearing surface and face with oil groove and oil hole respectively, when with the roller ( gǔn) Neck for clearance fit, the bearing inner ring inner hole on the surface of the spiral groove. Roll ( gǔn) Bearing ( 轴承) The structure of the ( 结构) Form is according to the different types of rolling mill, the different working conditions, 挑剑) And the structure of different configurations, 部署) To decide. Such as cross section thin-walled bearing has realized the extremely thin cross section of the bearing, also has realized the product miniaturization, lightweight. The diversity of products extends its application scope. It is generally divided into glue sealing - RS, iron seal - ZZ, plane, canvas - K, copper - M。 In general, four row cylindrical roller bearing is easy to get a higher processing ( 处理) Precision ( Accuracy) , it has a high speed rotating characteristics ( 特征) ） And because of its installation ( ān zhuāng) Disassembly is convenient, and can be pressed into the roll neck, circle after the surface of inner ring raceway surface and roll grinding at the same time, to improve the precision of rolling, multi-purpose at high speed, high precision rolling mill bearing roller, four row circular cone roller bearings bearing capacity is big, can bear radial load and axial load at the same time, suitable for low speed and medium speed mill. The previous: needle roller bearing during operation of attention next up: the question of bearing structure should consider to choose