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All ceramic bearing instructions

Number of visits: Date:2012-9-29 16:45

 

1, ceramic bearing with high temperature resistance, cold resistance, wear resistance, corrosion resistance, no magnetoelectricity insulation, oil free self lubricating, high speed characteristics.

Can be used in the extreme bad environment and the special working condition, and can be widely applied in aviation, aerospace, Marine, petroleum, chemical industry, automobile, electronic equipment, metallurgy, electric power, textile, pumps, medical equipment, scientific research and national defense military and other fields, is the new material application of high-tech products.

2, the product the production of ceramic bearing, ring and rolling body adopts full ceramic material, zirconium oxide (ZrO2), silicon nitride

(Si3N4), silicon carbide (SiC) three. Retainer using ptfe, nylon 66, polyether acyl and ammonia, zirconium oxide and silicon nitride, stainless steel or special aviation aluminum manufacturing, in order to expand the application of the ceramic bearing. Such as: high speed bearing, high temperature resistant bearing, corrosion resistant bearing, prevent magnetic bearing, electric insulation bearing, etc.

(1) high speed bearing: has the cold resistance, stress elastic small, compressive resistance, thermal conductivity difference, self-respect light, the advantages of small friction coefficient, can be used in 12000 revolution of/points to 75000 r/min of high-speed spindle and other high precision equipment.

(2) high temperature resistant bearing: material itself has high temperature 1200 ℃, and self lubrication, using temperature at 100 ℃ - 800 ℃ because of temperature difference between does not produce caused by expansion. Can be used in furnaces, system model, system steel of high temperature, such as equipment.

(3) corrosion resistance bearing: material itself has the characteristics of corrosion resistance and can be used in strong acid, strong alkali, organic and inorganic salt, water and other fields, such as: plating equipment, electronic equipment, chemical machinery, ship manufacturing, medical equipment, etc.

(4) anti magnetic bearing: because no magnetic not to absorb dust, can reduce bearing early spalling, large noise, etc. Can be used in the demagnetization equipment. Precision instruments, etc.

(5) electric insulation bearing: for electric resistance is high, can avoid arc damage bearing, available in various requirements of the insulation of electric power equipment.

(6) vacuum bearing: for ceramic material alone oilless self-lubrication characteristic, in ultrahigh vacuum environment, can overcome the plain bearing can't realize lubrication problem.

Note: this company offers more than five types of bearing, the same set of bearing can be used in high temperature and high speed, the acid and alkali, magnetic field, the insulation, but because the material properties different (please refer to the rare earth ceramic material performance table) so please customers select products, acquaint the application occasions, we will provide you choose the most suitable material ceramic bearing.

3, bearing type list

(1) deep groove ball bearing (technical level for: P4, P5, probe, P0)

Deep groove ball bearing, the most representative rolling bearing, wide range of USES, can bear radial load and two-way axial load. It is applicable to high-speed rotating and requirements of low noise, low vibration occasion or steel bearing can application of high temperature, cold, corrosion, magnetic field, the insulation, etc.

(2) self-aligning ball bearing

Self-aligning ball bearing ring raceway is spherical, automatic self-aligning can be added concentricity and deflection caused by the error. Used to produce shaft and shell of different heart or shaft bending parts and high temperature, low cold, corrosion, magnetic field the insulation requirements for the spherical parts.

Note: gradient cannot exceed 3 degrees.

(3) single row angular contact ball bearing (technical level for: P4, P5, probe, P0)

Angular contact bearing is suitable for high speed and high precision rotary, in the high temperature, magnetic field, such as water does not affect its precision, and can withstand synthetic load. The standard contact Angle is 15 °, 30 °, and 40 °, the greater the contact Angle axial load capacity is larger, contact Angle is smaller bearing can bear radial load and unilateral axial load. General take paired installation. Please take note when the choose and buy.

(4) the unidirectional thrust ball bearing

Unidirectional thrust ball bearing, is from a ball rolling roller way washer shape ring and assembly the ball cage composition. Can support

By axial load, but unable to bear radial load.

4, ceramic bearing properties of materials

(1) (please refer to the bearing commonly used material performance table)

(2) the performance comparison with bearing steel, bearing steel weight is 30% - 40%, can reduce the centrifugal force produced by the moving body load

Increase and skid. Because of high wear-resisting rotation speed of the bearing steel is 1.3 ~ 1.5 times, can reduce because of the high speed rotating produce channel surface damage. Elastic modulus higher than bearing steel 1.5 times. Stress elastic small, can reduce the load quantity produced by high deformation. Hardness is bearing steel 1 times, can reduce wear. Compression is bearing steel 5 ~ 7 times. Thermal expansion coefficient is less than 20% bearing steel. Friction coefficient is less than 30% bearing steel, can reduce because of friction heat generation, can reduce because of the high temperature caused by bearing early spalling failure. Tensile, bending and metal equally.

5, ceramic bearing installation

This company produces the ceramic bearing, the diameter, diameter and size are the state formulates steel bearing P4, moves the P5 and level

Standard size. Because of the ceramic material thermal expansion coefficient is low, the heat transfer performance is small, the elastic measure small wait for a characteristic, installation fit need to pay attention. If you have not known, please in to buy the product, to my company advice, I will help you to select the right fit tolerance.

TypeInfo: Technical Column

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