Advantages of deep groove ball bearings compared to plain bearings



1. Under normal conditions, the efficiency of rolling bearings is comparable to that of hydrodynamic lubricated bearings, but higher than that of hybrid lubricated bearings;

2, the radial clearance is relatively small, the radial angle contact bearing can be pre-tightened with pre-tightening force to eliminate the play, and the running precision is high;

3. For the shaft diameter of the same size, the width of the rolling bearing is smaller than that of the sliding bearing, which makes the axial structure of the machine compact;

4. Most rolling bearings can be subjected to radial and axial loads at the same time, so the bearing combination structure is simple;

5, less lubricant consumption, easy to seal, easy to maintain;

6, do not need useful non-ferrous metals;

7. High degree of standardization, batch production, low cost;
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Internal structure of NSK bearings



NSK bearing internal structure

A - Bearings with different internal design and standard.

A——Angle contact ball bearing with a contact angle of 30 degrees.

A5 - angular contact ball bearing, contact angle is 25 degrees.

B——Angle contact ball bearing with a contact angle of 40 degrees.

C——Angle contact ball bearing with a contact angle of 15 degrees.

C——Tapered roller bearing with a contact angle of 20 degrees.

D - Tapered roller bearing with a contact angle of 28 degrees.

C, CA (with brass solid cage), CD (with stamped cage) - high load spherical roller bearings.

E - High load cylindrical roller bearing.

H——High load thrust spherical roller bearing.

J——The small end diameter, angle and outer ring width of the outer ring raceway of tapered roller bearing are consistent with ISO regulations.
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