Use Of Variable Speed Bearing
Use Of Variable Speed Bearing
2021年12月18日
Select Bearing Type And Kinds
Select Bearing Type And Kinds
2021年12月18日

Different Characteristics Between Vibration Bearing And Ordinary Bearing

1. Vibration Bearing appearance characteristics

Special bearing for vibration:

A. The diameter of the rolling element increases and the length of the rolling element increases.

B. The cage consists of  outer ring edge retaining rollers to reduce the force on the rollers.

C. Inner ring edge retaining roller is adopted to improve roller operation.

D. Cylindrical roller bearing cage adopts integral structure, which greatly improves the strength.

E. The outer diameter of self-aligning bearing is designed with oil groove and oil hole, which has good lubrication effect.

Common bearing:

A. The diameter and length of the roller body are small.

B. The cage has rollers or inner rings.

C. Cylindrical roller bearing cage adopts rivet structure, which is easy to loosen and fall off.

D. The outer diameter of self-aligning bearing has no oil groove and oil hole, and the lubrication effect is poor.

Different Characteristics Between Vibration Bearing And Ordinary Bearing

2. Selection of materials

Special bearing for vibration:

A. The inner and outer rings  and rolling elements are made of vacuum degassed bearing steel with good fatigue resistance.

B. The cage is made of aluminum iron manganese bronze with high strength, good elasticity and better wear resistance.

Common bearing:

A. The inner and outer rings Vibration Bearing and rolling elements are made of ordinary bearing steel.

B. The cage is made of zinc brass with low strength Vibration Bearing and poor elasticity.

3. Heat treatment method

A. The inner and outer rings are subject to Bain horse Vibration Bearing mixed quenching or martensite quenching + high temperature tempering, with uniform hardness and small internal stress; Good toughness, impact and vibration resistance.

B. Good stability when working within 150C.

Common bearing:

The inner and outer rings adopt ordinary quenching method, Vibration Bearing which has poor toughness, poor impact and vibration resistance and poor thermal stability.

4. Tolerance and manufacturing process

Special bearing for vibration:

A. It is manufactured in strict accordance with P6 Vibration Bearing precision standard, especially the internal and external diameter tolerance is very small.

B. Size difference of rolling elements ≤ 0.002

C. The outer diameter of cylindrical roller has Vibration Bearing convexity to avoid stress concentration.

D. Super finish treatment of rolling surface, high finish.

Common bearing:

A. Ordinary Po level Vibration Bearing accuracy tolerance (some P6 standards) manufacturing.

B. Grouping of rolling elements ≤ 0.005.

C. Cylindrical roller without convexity practice.

D. Some raceways are only polished with low finish.

5. Internal clearance

Special bearing for vibration:

The clearance is produced according to the requirements Vibration Bearing of vibrating machinery, and the range is controlled in a very small range with good consistency.

Common bearing:

Clearance is generally produced according to standard Vibration Bearing group or C3 group, with small clearance, large range and large discreteness.

6. Use effect

Special bearing for vibration:

Low noise, low temperature rise, good stability, long service life and no early fatigue.

Common bearing:

High noise, high temperature, Vibration Bearing poor stability, short service life and early fatigue.

The production characteristics of rolling bearing determine Vibration Bearing that its process has the following three characteristics:

1. Specialization

In the processing of bearing parts, a large number of special bearing Vibration Bearing equipment are used. For example, ball grinding machine, grinder and other equipment are used for steel ball processing. The characteristics of specialization are also reflected in the production of bearing parts, such as steel ball companies specializing in the production of steel balls, micro bearing factories specializing in the production of micro bearings, etc.

2. Automation

The specialization of bearing production provides conditions for its production automation. Full automatic, semi-automatic special and non special machine tools Vibration Bearing are widely used in production, and automatic production lines are gradually popularized and applied. Such as automatic heat treatment line and automatic assembly line.

3. advanced nature

Due to the large-scale requirements of bearing production, it is possible to use advanced machine tools, Vibration Bearing tooling and technology. Such as CNC machine tools, three jaw floating chuck and protective atmosphere heat treatment.