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Bearing Classification


Published:

2023-09-08

Rolling bearing according to the direction of the load it can withstand or the nominal contact angle of the different centripetal bearings and thrust bearings.


Sliding bearings
Sliding bearings are not divided into inner and outer rings and have no rolling bodies, generally made of wear-resistant materials. Commonly used in low speed, light load and lubrication and maintenance of difficult mechanical rotation parts.
Spherical bearings
The sliding contact surface of the joint bearing is spherical, which is mainly suitable for oscillating motion, tilting motion and rotary motion.
Rolling bearing
Rolling bearing according to the direction of the load it can withstand or the nominal contact angle of the different centripetal bearings and thrust bearings. Among them, radial contact bearings are centripetal bearings with a nominal contact angle of 0, and centripetal angular contact bearings are centripetal bearings with a nominal contact angle greater than 0 to 45. Axial contact bearings are thrust bearings with a nominal contact angle of 90, and thrust angular contact bearings are thrust bearings with a nominal contact angle greater than 45 but less than 90.
According to the shape of the rolling body can be divided into ball bearings and roller bearings. Roller bearings according to the roller type is divided into: cylindrical roller bearings, needle roller bearings, tapered roller bearings and spherical roller bearings.
According to its work can be centering is divided into spherical bearings ---- raceway is spherical shape, can adapt to the two raceway axis line between the angular deviation and angular movement of the bearing and non-aligning bearings (rigid bearings) ---- can impede the raceway between the axis line angular deviation of the bearing.
According to the number of columns of rolling body is divided into single row bearings, double row bearings and multi-row bearings.
According to its components (collar) can be separated into separable bearings and non-separable bearings.
According to its structure and shape (such as with or without filling groove, with or without inner and outer rings and the shape of the ring, the structure of the edge, and even with or without cage, etc.) can also be divided into a variety of structural types.
According to its outer diameter size is divided into miniature bearings (<26mm), small bearings (28-55mm), small and medium-sized bearings (60-115), medium and large bearings (120-190mm), large bearings (200-430mm) and very large bearings (>440mm).
According to the application field, they are divided into motor bearings, rolling mill bearings, main bearings and so on.
By material, they are divided into ceramic bearings, plastic bearings, etc.

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