SKF ball bearing and ball bearing unit installation and disassembly steps

SKF ball bearing and ball bearing unit to unit assembly. Before installation, should not attempt to disassemble collar and remove the installation from the bearing rings. In ball bearings and bearing unit is install or remove, SKF suggest using a sling or dry jin uninstall all weight from the bearing, and prevent it from fixed shaft rotation. SKF ball bearing and ball bearing unit installation steps: 1, use cloth or smooth file to remove all the burrs on the shaft, a cloth rub-up, and check the shaft diameter ( FIG. 1) 。 About the recommended the axis of the tolerance, please see table 1. 2, all in the two bearing or bearing units position between the components installed on the shaft. 3, clean the base of the bearing unit and the supporting surface ( FIG. 2) And ensure that the supporting surface level off, smooth. Flatness should be within the standard of IT7 and roughness Ra 12 or less. 5mm。 For vertical bearing unit, if the gasket must be put through to adjust the height, the gasket must be extended to the base of the unit to the entire length and width of the range. 4, slide the first bearing unit shaft, ensure that can touch its installation ring ( Figure 3) 。 For vertical bearing unit, will be installed bolt or nut screw on, but do not tighten. For flange bearing unit, should be used when feasible bearing centering grooves of the back, will be fastened to the institution of the mating surfaces. 5, according to the steps 3 and 4 will be the second positioning on the shaft bearing unit. For vertical bearing unit, the use of shaft for two units in carefully, and then fully tighten the mounting bolts on the bearing base. For flange bearing unit, where feasible using the bearing seat back centering grooves, will be fastened to the institution of the mating surfaces. 6, the shaft in the bearing arrangement on the axial alignment, and a few turns in practical cases. 7, the first by positioning locking ring bearing unit is fixed onto the shaft, make flat screw directly on the shaft sleeve opening part position in the opposite direction. Holding the Allen wrench short shank, tighten the screws manually ( Figure 4) 。 8, tighten the pattern as shown in figure 5, the screw 1/4 circle. Do this twice. Each flat head screw, then tighten the screw on the other side of the sleeve opening part, until the Allen wrench long handle touches the torque indicator is provided, Figure 6) , or until reach the recommended torque values in table 2. 9, according to the steps 7 and 8 second bearing unit is fixed onto the shaft. To ensure the smooth shaft rotation, and the bearing block will not occur. If the axis rotation is not smooth, the loose according to remove that one of the bearing unit, and then to fix it. 10, if necessary, to end cover card into in place. SKF ball bearing and ball bearing unit remove steps: 1, can use emery cloth to clean the shaft extension, to remove rust or repair surface damage. 2, loosen the first bearing all the screws on the unit. The installation of 3, tap the bearing ring, the collar edge, loosen the axis until the locking system. Or can also ring installation phase again knock bearing inner ring end face. 4, loosen and remove the bolt installation, and the bearing unit slid down from the shaft. 5, repeat steps 1 to 4 to remove the second bearing unit. SKF ball bearing can be inserted into any SKF bearing Y: for the operation, the bearing inserted into the slit in the installation of the bearing hole ( Figure 7) Sticks and a truncated circular or pipe install the bearing rotation in place allowing locking devices with notches on the same side ( Figure 8) 。 In order to avoid damage on the edge of the collar, please use a slightly thin in bearing inside diameter of pipes or rods. At the same time, when turning in place, to avoid bearing high pressure. Make sure that there is no the rotational torque to the collar opening area. When installing a bearing, please make sure that one of the lubricant on the bearing hole with the lubricant in the bearing groove collocated, and with the installation of bearing slot collocated, or grease will leak ( Figure 9) 。