Two installation methods of deep groove ball bearings

Deep groove ball bearing installation method one

Press fit: when the inner hole of the bearing is fit with the shaft and the outer side is loosely fit with the bearing seat hole, the bearing can be pressed on the shaft with a punching machine, and then the shaft equipped with the bearing is installed into the bearing seat hole together. during the press fit period, a soft metal composite assembly sleeve (copper or high carbon steel) is placed on the end surface of the bearing inner hole, the outer side of the bearing is firmly matched with the hole of the bearing seat. The inner hole and the shaft are loosely matched with each other. The bearing can be pressed into the bearing seat hole first, and then the diameter of the installation sleeve specification should be slightly lower than the diameter of the bearing seat hole.

If the bearing ring is matched with the shaft and the seat hole, the installation of the inner hole and the outer side should be additionally pressed into the shaft and the seat hole, and the outer side of the installation sleeve specification should be able to additionally clamp the inner hole of the outer side and the outer side of the bearing.

Deep groove ball bearing installation method two

Thermal interfit: an installation method that changes tight interfit into loose interfit according to heating the bearing or bearing seat and applying thermal deformation. It is a common and labor-saving installation method. This method is suitable for installing bearings with great influence. Before hot installation, the bearing or the detachable bearing ring is placed in the oil tank of the car and heated evenly at 80-100°C, then the oil is removed from it and installed on the shaft as soon as possible. In order to better avoid the inner hole and the shaft shoulder of the inner hole being tighter after cooling, the bearing can be fixed in the rear direction of the cooling wheel. When the outside of the bearing is mated with the non-ferrous bearing seat, heating will be applied. The hot mounting method of the bearing seat can prevent the surface of the mutual cooperation from being scratched.

When heating the bearing with the automobile fuel tank, there should be a grid diagram at a certain distance from the bottom of the automobile fuel tank, or the bearing should be suspended with a hook. It is not allowed to place the bearing at the bottom of the car's fuel tank to avoid submerged debris entering the bearing or unevenness. In order to better heat up, there must be a thermometer in the car's fuel tank, and the water temperature must be strictly controlled not to exceed 100°C to avoid the actual effect of quenching and reduce the strength of the ring.