1. According to rolling bearing structure types of classification

(1) according to the bearing can take the direction or load nominal contact Angle is different, is divided into:

1) to heart bearings, mainly used for bear radial load of rolling bearing, the nominal contact Angle from 0 to 45. According to different nominal contact Angle, and divided into: radial contact bearings nominal contact Angle-0 to heart bearings: to the heart Angle contact bearings nominal contact Angle-greater than 0 to 45 to heart bearings.

2) thrust bearing, mainly used for axial load rolling bearing, needle bearing the quantity more needle roller as the nominal contact Angle 45 to 90. Nominal contact Angle according to different and divided into: axial contact bearings, nominal contact Angle for 90 thrust bearing thrust Angle contact bearings nominal contact Angle-more than 45 but the thrust bearing of less than 90.

(2) bearing according to the types of roller, is divided into:

1) ball bearings, ball rolling body for:

2) roller bearings, inside and outside circle axis deflection allow 0.5 ° relative ~ 2 ° of self-aligning ball bearings rolling body for roller. Roller bearings by roller types, and divided into: cylindrical roller bearings, cylindrical roller is roller bearings, cylindrical roller diameter and length of the ratio of less than or equal to 3; Needle bearing-rolling body is the needle bearing, the length of the needle with diameter of more than 3 than, but diameter less than or equal to 5 mm; Tapered roller bearings, rolling body is tapered roller bearings; Self-aligning roller bearings rolling body is one of the spherical roller bearing.

(3) bearing according to its work when whether the tone heart, is divided into:

1) self-aligning bearing-groove is spherical shape, adapt to two groove axis line of Angle deviation between the Angle motion and the bearing;

2) the self-aligning bearing (rigid bearing)-can impedance groove axis line horn migration between the bearing.

(4) bearing according to rolling column number of the body, is divided into:

1)-has a list of single bearing of the roller bearing;

2) double row bearing-bear impact load ability strong of cylindrical roller bearing 2 has two columns of the roller bearing;

3) listed bearing-has more than two columns of the roller bearings, such as three columns, four row bearings.

(5) bearing according to the parts can be separated, is divided into:

1) bearings can be separated parts-has bearing;

2) cannot be separated bearing in the final after supporting-bearing, contractor shall not any free separation of bearing.

(6) bearing according to the structure shape (such as whether slot loading, and presence of inner and outer rings and the shape, the structure, or even raised edge keep frame etc) can also be divided into many structure types.

According to the size of rolling bearing outside diameter size according to the classification bearing size, is divided into:

(1) miniature bearing, nominal diameter size range for 26 mm the following bearing;

(2) small-sized bearing nominal diameter size range-28-55 mm for the bearing;

(3) small and medium-sized bearing-nominal diameter size ranges for 60-115 mm of bearing;

(4) medium-large bearing nominal diameter size range-for 120-190 mm bearings

(5) large bearing-nominal diameter size range of 200-430-mm of bearing;

(6) large bearings, thrust ball bearing rings roller is mostly separable nominal diameter size range for 440 mm above bearings.
 
 



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