The difference between ball bearings and cylindrical roller bearings

The rolling elements of cylindrical roller bearings are cylindrical, designed to perform well under high radial loads and relatively low axial loads

The relationship between shafts, bearings, and bearing seats

The shaft is connected to the bearing through a static fit method, ensuring a tight contact between the shaft and the bearing, and improving the stability and accuracy of the work. Static fit connections typically require precise dimensional matching between the shaft and bearings, by heating or cooling them to ensure a tight fit and achieve a tight fit

Assembly process of cylindrical bearings

By following the above steps and precautions, the assembly process of cylindrical bearings can be ensured to proceed smoothly, achieving the expected usage effect and lifespan.

What material is the bearing made of

Stainless steel bearings perform well in humid and corrosive environments, with high precision and corrosion resistance, and are commonly used in fields such as medical equipment, printing machinery, and food processing.

Advantages and disadvantages of needle roller bearings

Low friction coefficient and high transmission efficiency: Rolling friction is used, which has a low friction coefficient and high transmission efficiency, helping to reduce energy loss and heat generation. ‌

There are several assembly methods for bearings

Hot assembly method: By heating the bearing to expand it, it is easier to assemble onto the shaft. Suitable for bearings with an outer diameter exceeding 100mm, the heating temperature is generally controlled between 80-90 ℃ to avoid annealing.

Working principle of bearing production line

Manufacturing of ball bearings: Ball bearings are made of steel wire, which is cut into sections by a machine and then punched into rough balls using a punching machine, and then polished and smoothed by a grinder. After hardening in the furnace, the ball bearings are cleaned with a cleaning agent and undergo quality inspection

The fixing method of bearings and shafts

Cold installation method: Use liquid nitrogen to cool and shrink the shaft parts before installing the bearings, and then let them naturally rise to room temperature. This method is usually only applicable to small shaft components.