What are plain bearings, roller bearings, roller bearings, needle roller bearings?
Sliding bearings (sliding, bearing) bearings that work under sliding friction. Plain bearings work smoothly, reliably and without noise. Under the condition of liquid lubrication, the sliding surface is separated by the lubricant without direct contact, and the friction loss and surface wear can be greatly reduced. The oil film also has a certain vibration absorption capacity. But the starting friction resistance is larger.
Needle bearing roller bearings are cylindrical roller, relative to its diameter, the roller is thin and long. This roller is called needle roller. In spite of the small cross section, the bearing still has a high load capacity, so it is especially suitable for radial space limited occasions.
A rolling bearing (ROLLINGBEARING) is a precision mechanical element that reduces the friction loss between a running shaft and an axle seat to a rolling friction. Generally, the rolling bearings consist of the outer ring, inner ring, roller and cage. A type of bearing in which the journal rotates in a circular contact with a number of rollers usually mounted on the locating ring.
