The value of F varies according to the bearing type and diameter

The value of F varies according to the bearing type and diameter. For small bearings, they can be hung on a hook and immersed in oil for heating. General assembly methods of rolling bearings include hammering method, pressing method, hot mounting method and cold shrinking method. Commonly used assembly methods for bearings include hammering and pressing. , And then adjust the clearance between them. As shown in Figure 9, when measuring, place the main shaft journal on the V-shaped frame, insert the measuring mandrel into the main shaft taper hole, and rotate the main shaft more than one circle to measure the deviation value and direction of the center line of the cone L.

Detection of radial runout of outer ring of bearing. Figure 1-a uses a special sleeve to press people, and Figure 1-b uses a copper rod to symmetrically knock people on the end face of the inner ring (or outer ring) of the bearing. Bearings filled with lubricating grease with dust cover or sealing ring cannot be assembled by hot mounting. Check whether the bearing model is consistent with the drawing. Clean the parts matching the bearing with gasoline or kerosene, wipe it with a clean cloth or blow dry with compressed air, and then apply a thin layer of oil. 

Then the inner ring is rotated more than one circle to measure the inside of the bearing. To Figure 6 Assembly of thrust ball bearing Note: 1, 5- tight ring; 2, 4- loose ring; 3- box body; 6- nut.) can be freely disengaged, the inner ring and the rolling elements are mounted on the shaft together, and the outer ring is mounted in the shell. According to the drawing requirements, check whether the parts matching the bearing have defects, rust and burrs. To Figure 1 Assemble rolling bearing by hammering method (a is pressed in with a special sleeve; b is knocked in with a copper rod) To Figure 2 Press-in method to assemble rolling bearings Note: a install the inner ring on the journal; b install the outer ring into the bearing hole; c press the inner and outer rings into the bearing hole at the same time. Detection method of rolling bearing assembly error For spindle components with high precision requirements, in order to improve the rotation accuracy of the spindle, the directional assembly method is often used when the bearing inner ring and the spindle are assembled, and the bearing outer ring and the box hole are assembled.

The assembly of rolling bearings should be determined according to the structure, size, and matching nature of the bearing components.tensioner bearing kit manufacturers If the journal size is large and the interference is large, the hot-fitting method can be used to facilitate assembly, that is, the bearing is heated in oil at a temperature of 80~100~C, and then matched with the shaft at normal temperature. 1. When the inner ring fits tightly with the journal and the outer ring fits loosely with the housing, first install the bearing on the shaft, and then install the bearing into the housing together with the shaft. As shown in Figure 8, the outer ring is fixed during measurement, and a uniform measurement load F is applied to the end face of the inner ring.

 To Figure 3 The method of heating the bearing in the mailbox (2) When the assembly interference of the tapered bore bearing is small, it can be installed directly on the tapered journal, or on the tapered surface of the adapter sleeve or withdrawal sleeve (Figure 4); for the larger journal size Or with the tapered bore bearing that has a large interference and is often disassembled, the hydraulic sleeve is usually used for disassembly (Figure 5). As shown in Figure 7, when measuring, rotate the outer ring and press the outer ring in the direction of the dial indicator. To Figure 8 Radial runout detection of bearing inner ring (3) Detection of the centerline of the spindle taper hole. To Figure 9 Measuring the deviation of the centerline of the spindle taper hole.