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What is rolling bearing

Rolling bearings are divided into centripetal bearings and thrust bearings according to the direction of load they can bear or the nominal contact Angle. Among them, radial contact bearings are centripetal bearings with nominal contact Angle of 0, and centripetal angular contact bearings are centripetal bearings with nominal contact Angle greater than 0 to 45. Axial contact bearings are thrust bearings with nominal contact Angle of 90, and thrust angular contact bearings are thrust bearings with 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 are divided into cylindrical roller bearings, needle roller bearings, tapered roller bearings and self-aligning roller bearings according to the types of rollers.
According to its working can be divided into aligning bearings ---- raceway is spherical, can adapt to the angular deviation and angular motion between the two raceway spindle line bearings and non-aligning bearings (rigid bearings)---- can impedance between the raceway spindle line angular deviation bearings.
According to the number of rows of rolling body, it is divided into single row bearings, double row bearings and multiple row bearings.
According to its component (ring) can be separated into separable bearing and non-separable bearing.
According to its structural shape (such as whether there is a filling slot, whether there is the shape of the inner and outer ring and the ring, the structure of the guard, and even whether there is a 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 oversized bearings (>440mm).
According to the application field, it is divided into motor bearing, rolling mill bearing, main bearing, etc.
According to the material is divided into ceramic bearings, plastic bearings, etc.

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