Bearing the correct installation is directly affect the accuracy of the use of bearings, life and performance. The use of copper hammer and manual installation

This is a simple and convenient method for the installation of small and medium sized bearings. When the bearing inner ring is tightly matched with the outer ring is a loose fit, copper bar close to the end surface of the bearing inner ring, direct percussion with a hammer rod, transmit force by a copper bearing slowly mounted to the shaft. The inner ring of the bearing is large, available copper rod along the bearing inner ring face evenly around the hard hit, avoid by all means is only beat side, also not overexert to symmetric beat, lightly beat slowly mounted on, in order to avoid strike oblique fissure bearing.

The use of this method and the use of copper sleeve installation installation of bearing the same reason. It is sleeve direct pressure on the end surface of the bearing (bearing mounted on the shaft pressing the end face of the inner ring; installed in a shell hole pressed outer ring end face), with the hammer strike force can be evenly distributed in the bearings installed in the ferrule end face, and can be used in conjunction with the press, labour saving and time-saving installation and reliable quality. The sleeve should be used for the manufacture of soft metal (copper or low carbon steel pipe can be). If the bearing is installed on the shaft, sleeve diameter should be slightly larger than the Journal 1-4mm, outside diameter is slightly smaller than the diameter of the bearing inner ring, or the sleeve thickness, the thickness should be made equal to the thickness of the bearing inner ring 2/3-4/5, and both ends of the sleeve should be flat and vertical. When the bearing is installed in the hole, the outer diameter of the sleeve should be slightly smaller than the diameter of the bearing.

3 there is a press indentation method: install pressure should be directly imposed on interference fit bearing ring face, otherwise they will be in the working surface of the bearing caused by crush injury, resulting in bearing quickly damage.

4 heating installation

For the installation of a large amount of surplus bearing or large size bearings, in order to facilitate the installation, use of thermal expansion and contraction principle, the bearing in the tank after heating with copper bar, a sleeve and a hammer installation. When the temperature is generally controlled at 100 degrees Celsius, 80-90. When the temperature is too high, it is easy to cause bearing raceway and rolling body annealing and impact on hardness and wear resistance, resulting in bearing life reduces and scrapped prematurely.

With the bearing and the shaft is generally transition fit, with the seat ring and the bearing hole in general clearance. The axial ring two-way bearing should be fixed on the shaft, to prevent relative to the axis. Bearing installation method, under normal circumstances is the majority of the shaft rotation, so the inner ring with the shaft for the win with the ball, the outer ring and the bearing chamber for the clearance with.

Installation of the bearing, the dial gauge fixed on the end face of the box casing, so that the contact table top at the top of the bearing ring raceway rotating bearings, while rotating the side observation indicator pointer, pointer to swing, ring shaft and shaft center line is not vertical. If the box shell hole is deep, 1000 meter test can also be used to lengthen. This is a very good method for inspection shaft ring and the shaft center line verticality.

Bearings installed anti -, not only the work of the bearing is not normal, and the mating surface will be severely worn. As the shaft ring and ring and the difference is not very obvious, the assembly should be careful, not anti loaded. Install the correct time should be the seat can automatically adapt to the rolling body, ensure that the rolling body raceway is located in upper and lower. In addition, between the races of the bearing and the bearing seat hole should be left 0.2 – 0.5 mm gap, to compensate parts machining and installation of inexact pose error, when the operation of the bearing ring center offset and gap here can ensure its automatic adjustment, avoid touching the friction the normal operation. Otherwise, it will cause severe damage to the bearing.

Installation notes: 1, for the gap with the Harbin Bearing circle, it is recommended in the face coated with a thin layer of anti-corrosion agent, to prevent friction between the mating surface.

2, the installation of the application of the bearing force, must not pass through the rolling body from a bearing ring to another bearing ring, otherwise it may cause damage to the rolling road. But in any case, can not directly knock on the bearing ring, cage, rolling body or seal.

3, with eccentric sleeve. The eccentric sleeve is sheathed in the inner sleeve of the bearing eccentric steps and hand along the axis of rotation direction on tight. And then the small iron bar insert or withstand the eccentric sleeve on the sink hole. With the hammer along the direction of rotation of the shaft of striking the small iron. The eccentric sleeve is installed firmly, finally locking eccentric sleeve on the hexagon screws.

4, the fixed bearing seat bolts do not tighten first, so that the bearing sleeve can rotate in the bearing seat. Then tighten the bearing seat bolts. Also installed on the same shaft and the other end of the shaft and bearing seat, turn a few laps, the bearing itself automatically find the location is.

5, in the bearing block and bearing with the lubrication oil, the Harbin Bearing into the bearing seat. Then the assembled bearing is sheathed on the shaft with the bearing seat, and the assembly is pushed to the desired position.