Assembly steps of electric spindle bearing in machining center (the most complete version)-

For 37 years, Sanli has focused on the application and production of bearings in machining centers and other scenes that require high-speed and precise operation. We summarize the assembly steps of spindle bearings in machining centers as follows: ① The tolerance of the spindle bearing and the spindle journal exceeds 0.002-0.005mm It can be achieved by grinding the actual measured value of the main shaft and the main shaft bearing; ② The coated SBU15 lithium-based grease before the bearing installation is 1/3 of the bearing clearance; ③ Before the main shaft bearing of the machining center is installed, the main shaft should be fixed vertically on the On the bracket, the high point of the taper hole of the main shaft corresponding to the shaft runout should be determined according to the mark provided by the machine, and the high point of the inner ring of the bearing should be aligned with the mark of the outer ring of the bearing; 50℃; ⑤ Bearings and spacers are installed on the main shaft in sequence according to the marked positions, and the bearings and spacers are knocked axially with the installation sleeves in order to ensure that the joint ends of the bearings are tightly fitted; ⑥ When installing spacers, not only must ensure that The oil and air hole of the spacer itself is not blocked, and it is also necessary to ensure that the main shaft sleeve is installed on the premise that the oil and air lubrication hole of the spacer and the position of the sleeve are correct; ⑦ Install the main shaft nut; ⑧ Finally adjust the rotation accuracy. In the field of high-speed machining center electric spindle bearings, Sanli has 37 years of experience, and is committed to providing matching application solutions for angular contact ball bearings for various machining centers! Only when the torque is accurate can the rotation be stable!

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