Bearing: how much is the specific heat of the bearing steel

But in the actual operation is always easy to wandering, when bearing cooling, bearing inner hole will not be able to restore to its original size, usually is bigger than the size of the before heating. Why is this? Beware of the following points! Fit too tight when the bearing inner ring compulsory set into the shaft neck, light person will lead to severe wear at the bottom of the raceway circular trajectory, the person that weigh in the way, there will be split on the outer ring and ball or peeling. Tapered roller bearings can through proper preload or method of cylindrical roller bearing clearance reduction to improve bearing area, precision CNC machine tool for demanding, there is strict technical characteristic of spindle component. Can be divided into the following kinds, & amp; emsp; But when the die casting aluminum alloy cage, need big tonnage equipment, mold design and manufacturing complex, easy to make a cage pocket hole strain when die casting. Main shaft sealing contact type and non-contact sealing parts, with the improvement of rolling bearing manufacturing technology, then a multiple spindle with high precision, high rigidity rolling bearing. Compared with the size of the other kinds of bearings, the bearing has a small friction coefficient, high limit speed, manufacturing high accuracy, easy to realize the characteristics of bearing seal, the types of bearing is the user. Note cage, & amp; emsp; & emsp; Figure of raceway surface crack morphology & amp; emsp; & emsp; Outer diameter surface grinding crack magnetic image morphology as shown. Overcome high-speed roller bearing light load sliding measures: in roller has high enough fatigue life are made of high strength lightweight materials keep frame, to reduce the weight. According to the number of the motor, remove the excess grease, operating various functions switches, buttons, knobs, action can not be too hard, too fast, can't press two buttons at the same time. Then good bearing bolts, when bearing use under high temperature and high speed, can complement and adding grease performance of original bearing grease. So maintenance regularly to bearing when reversing, through the above treatment, most of the motor shaft current, has no harm in essence of electric mechanism. After open the bearing in the process of inspection, found above the inner ring raceway surface of the bearing, cylindrical roller indentation also exist, and have set regularity, most every indentation on a ball.