Spindle bearings are the spindle bearings of precision machine tools and similar equipment. They ensure the accuracy and performance of precision machine tools. Improper operation of the bearing during installation often causes early damage to the bearing or early loss in use. Greatly increase the cost of bearings;

 Then, the precautions for spindle bearings are:

1. Cleaning and inspection of bearing bush

Large motor bearings are packaged and shipped separately. After opening the box, remove the upper and lower tiles, mark them with ring screws, and clean them with kerosene. Dry cloth is used to dry and check if all grooves are clean and if there is any residual sand casting. The tungsten gold layer is not well combined with the ceramic tile, and there are mixed materials such as channels and cracks. If it cannot be repaired, tungsten and gold should be suspended again.

2. Cleaning and inspection of bearing seat

The bearing seat should be thoroughly cleaned and inspected before installation. The inner cavity of the bearing seat is scraped off with a scraper, and the dirt is wiped off with a cloth soaked in gasoline or solvent to see if there are cracks and sand pits to prevent oil leakage during operation. The joint surface of the bearing cap and the bearing seat, and the joint surface of the bearing seat and the bearing oil retaining ring should be smoothed and matched, and checked with a feeler gauge. The gap should not be greater than 0.03mm. The bottom surface of the enclosure should also be clean, free from contact, rust and burrs. The screws and plate threads that fasten the housing should be carefully inspected and tested to determine whether the screws are too tight or too bare

3. Bearing edge structure

An edge pad or metal pad must be installed between the bearing and the base plate. Metal spacers are used to adjust the horizontal position of the seat. Adjust the relative position of the motor and another connected motor or machine. The metal gasket is made of 0.08mm metal sheet. The edge pad is made of cloth laminate or glass fiber laminate. The purpose of placing the edge pad is to prevent the hazards of axial flow. The edge pads should be 5 10 mm wider and 3 10 mm thicker than the sides of the enclosure. In addition to the edge pads between the bearing and the base plate, the screws and stabilizers should also be edged. The edge gasket is made of glass cloth with a thickness of 2mm and 5mm, and its outer diameter is 4mm and 5mm larger than that of the iron washer. The oil pipe rim pad connected to the bearing housing can be made of 1mm rubber sheet thickness. After the flange bearing seat is installed, the ground flange resistance should be checked and measured with a 500V megger. Its resistance value should not be less than 1 megohm.