Asia United Machinery CO.,LTD

Bearing housing

2018-08-09 16:53:03

The bearing is used to make the shaft run along the circumference and support the shaft. The conventional usage is two bearings or more, the function of which is to make the shaft run normally, and the bearing seat is used to support the bearing, the outer ring of the fixed bearing, Only the inner ring is rotated, the outer ring remains stationary, always in line with the direction of the drive (such as the direction of motor travel), and the balance bearing is an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.
According to the friction properties of moving components, bearings can be divided into rolling bearings and sliding bearings. Among them, the rolling bearing has been standardized and serialized, but its radial size, vibration and noise are larger than the sliding bearing, and the price is also high.
Rolling bearings generally consist of an outer ring, an inner ring, a rolling element and a cage. According to the shape of the rolling element, the rolling bearing is divided into two categories: ball bearing and roller bearing.
Bearing classification
Sliding bearing
Sliding bearings are not divided into inner and outer rings and have no rolling elements, and are generally made of wear-resistant materials. Commonly used for low speed, heavy load and lubrication, and mechanical rotation of difficult maintenance.
Joint bearing
The sliding contact surface of the joint bearing is spherical, and is mainly suitable for oscillating motion, tilting motion and rotational motion.
Rolling bearing
Rolling bearings are divided into radial bearings and thrust bearings according to the load direction or nominal contact angle they can withstand. The radial contact bearing is a radial bearing with a nominal contact angle of 0, and the radial angular contact bearing is a radial bearing with a nominal contact angle greater than 0 to 45. The axial contact bearing is a thrust bearing with a nominal contact angle of 90, and the thrust angular contact bearing is a thrust bearing with a nominal contact angle greater than 45 but less than 90.
According to the shape of the rolling element, it can be divided into a ball bearing and a roller bearing. Roller bearings are divided into roller types: cylindrical roller bearings, needle roller bearings, tapered roller bearings and spherical roller bearings.