Precautions for bearing storage

In contact with corrosive chemical media, the bearing is not cleaned cleanly, there is dirt on the surface, or the bearing is touched with sweaty hands. After the bearing is cleaned, it is not packaged or installed in time, and it is exposed to the air for a long time, and is attacked by air moisture and contamination; contamination

Installation method of deep groove ball bearings

Deep groove ball bearing installation method 1: Press fit: When the inner ring of the bearing is tightly matched with the shaft, and the outer ring is loosely matched with the bearing seat hole, a press can be used to press the bearing onto the shaft first, and then install the shaft together with the bearing. Put them into the bearing seat hole together. When pressing, place an assembly sleeve made of soft metal material (copper or mild steel) on the end face of the inner ring of the bearing.

Bearing characteristics of deep groove ball bearings

Deep groove ball bearings are the most commonly used rolling bearings. Its structure is simple and easy to use. It is mainly used to bear radial load, but when the radial clearance of the bearing is increased, it has a certain performance of angular contact ball bearing, and can bear combined radial and axial loads. When the rotation speed is high and it is not suitable to use thrust ball bearings, it can also be used to bear pure axial load. Compared with other types of bearings with the same specifications and dimensions as deep groove ball bearings, this type of bearing has a small friction coefficient and a high limit speed. But it is not impact resistant and not suitable for bearing heavy loads.

Physical properties of high temperature resistant materials for bearings

Porosity: refers to the percentage of pore volume in the material as a percentage of the total volume of the material. The pores of SKF bearing high temperature resistant materials can be divided into three types according to their existing forms: closed pores, one pores - pores connected to the outside atmosphere, connected pores - the proportion of the entire pores is 7L. Small SKF bearing high temperature resistant materials have the ability to resist erosion and structural strength; the higher the porosity, especially the more interconnected pores, the lower the thermal conductivity of the material. Lightweight adobe bricks, lightweight high-alumina bricks and other insulation materials use a method to increase porosity and reduce their thermal conductivity.

Reasons for seal failure of imported bearing seats and improvement plans

FAG imported bearing seat seal improvement plan "multi-stage pressure relief sealing technology" experimental bearing seat seal ring, and can reduce the leakage of lubricating oil by reducing the pressure difference between the two ends of the seal in the working environment without the need for large-scale disassembly such as shaft extraction , At the same time, the remaining leaked lubricating oil flows back to the oil tank to achieve the purpose of preventing leakage of the shaft seal.

Why do imported bearings fail and how to solve them?

Bearing vibration has a significant impact on bearing failure. For example: peeling, indentation, rust, cracks, wear, etc. will be reflected in the vibration detection of INA imported bearings. Therefore, the size of the vibration can be measured by using a special overall eccentric bearing vibration measurement device (frequency analyzer and vibration meter, etc.) The frequency distribution can be used to infer the details of abnormal vibration. The measured values ​​vary depending on the use conditions of INA imported bearings or the installation position of the sensor. Therefore, it is necessary to analyze and compare the measured values ​​of each machine in advance to determine the judgment scale.