1. Bearing direction as it can bear loads or different nominal contact angle, divided into:
(1) radial spherical plain bearings FAG bearings-primarily for withstanding radial load, the nominal contact angle from 0 ° to 45 °. Different according to the nominal contact angle, is divided into:
Radial contact ball bearings-radial spherical plain bearings of the nominal contact angle is 0 °;
Radial angular contact ball bearing-nominal contact angle greater than 0 ° to 45 ° radial spherical plain bearings.
(2)-primarily for axial loads for thrust bearings FAG bearings, their nominal contact angle greater than 45 ° to 90 °. Different according to the nominal contact angle, is divided into:
Axial bearings-nominal thrust bearings with contact angle of 90 °;
Thrust angular contact ball bearings contact angle greater than 45 °-nominal thrust bearings is less than 90 °.
2. Type of bearing by rolling, divided into:
(1) ball bearing-rolling ball;
(2) the roller bearing-rolling roller. Roller bearings are roller types are divided into:
-Rolling of cylindrical roller bearings are cylindrical roller bearings, cylindrical roller length to diameter ratio is less than or equal to 3;
Products-rolling elements are needle roller bearings, needle length to diameter ratio is greater than 3, but a diameter less than or equal to 5mm;
-Rolling of tapered roller bearings are tapered roller bearings;
Spherical roller bearing-rolling are spherical roller bearings.
3. By its work, bearing the possibility of aligning, divided into:
(1) the spherical bearings-raceways is spherical-shaped, can adapt to two road axis deviation and roller bearing of angular motion;
(2) non-spherical bearing (rigid bearing)-impedance road axis offset FAG rolling bearings.
4. Bearing by rolling the number of columns, divided into:
(1) single row bearing-rolling bearings;
(2)-double row bearings have two rows of rolling bearings;
(3)-with more than two columns column bearing rolling element bearings, bearing three columns and four columns.
5. Bearing in its parts can be separated, divided into:
(1) separable bearings-bearings with separable parts;
(2) is not available after release bearing-bearing, in the final package, are not any free separation of races bearing.



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