Roller ceramic bearings

1. According to bearing materials: zirconia ceramic bearings, silicon nitride ceramic bearings, silicon carbide ceramic bearings, alumina ceramic bearings, hybrid ceramic ball bearings,

2. Divided by bearing category: deep groove ball bearings, angular contact ball bearings, self-aligning ball bearings, double row angular contact ball bearings, plane thrust ball bearings, outer spherical ball bearings ...

3. According to bearing accuracy: P0, P6, P5, P4,

4. According to bearing size: miniature bearings, small bearings, small and medium bearings, medium and large bearings, large bearings (bearings with a nominal outer diameter range of 3-430mm)

5. According to processing technology: German design, let cloud production, full ceramic bearings with high cost performance, German design, German production, all ceramic bearings can be customized according to customer special requirements,
Roller ceramic bearing advantages:

1. Since ceramics are scarcely resistant to corrosion, ceramic rolling bearings are suitable for operation in harsh conditions covered with corrosive media.

2. Since the density of the ceramic rolling balls is lower than that of steel, and the weight is much lighter, the centrifugal effect of the outer ring can be reduced by 40% when rotating, and the service life is greatly extended.

3. Ceramic is less affected by thermal expansion and contraction than steel, so when the bearing clearance is constant, the bearing can be allowed to work in an environment where the temperature difference changes drastically.

4. Since the elastic modulus of ceramic is higher than that of steel, it is not easy to deform when subjected to force, so it is conducive to improving the working speed and achieving higher accuracy.

Main uses of RANUR series roller ceramic bearings:

1. Ceramic bearings have the characteristics of high temperature resistance, cold resistance, wear resistance, corrosion resistance, magnetic and electrical insulation, oil-free self-lubrication, and high speed. It can be used in extremely harsh environments and special working conditions. It can be widely used in aviation, aerospace, marine, petroleum, chemical, automotive, electronic equipment, metallurgy, electric power, textiles, pumps, medical equipment, scientific research and defense and military fields. High-tech products using new materials.

2. The ferrules and rolling elements of ceramic bearings use all-ceramic materials, including zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (Sic). The holder is made of polytetrafluoroethylene, nylon 66, polyetherimide, zirconia, silicon nitride, stainless steel or special aviation aluminum, thereby expanding the application area of ceramic bearings.

Application fields of RANUR series roller ceramic bearings:

1. Medical equipment, low temperature engineering, optical instruments, high speed machine tools, high speed motors, printing machinery, food processing machinery.

2.In the fields of aerospace, navigation, nuclear industry, petroleum, chemical industry, light textile industry, machinery, metallurgy, electricity, food, locomotive, subway, high-speed machine tools and scientific research and defense military technology, it needs to be in high temperature, high speed, deep cold, easy Inflammable, explosive, strong corrosion, vacuum, electrical insulation, non-magnetic, dry friction and other special working conditions, the indispensable role of ceramic bearings is gradually being recognized.

3. With the continuous progress of processing technology and the increasing level of technology, the cost of ceramic bearings has continued to decline. It has been applied in a small range of high, precision and sophisticated areas in the past, and has gradually been extended to various industrial sectors of the national economy. Products The market price is also gradually approaching practicality, reaching a level acceptable to users. The wave of large-scale application of ceramic bearings has surged!

RANUR series roller ceramic bearing application classification:

1. High-speed bearing: It has the advantages of cold resistance, low stress elasticity, high pressure resistance, poor thermal conductivity, light weight, and low friction coefficient. It can be applied to high-speed spindles of 12,000 to 75,000 rpm and other high precision Equipment

2. High temperature bearing: The material itself has a high temperature resistance of 1200 ° C and good self-lubrication. The use temperature does not cause expansion due to temperature differences between 100 ° C and 800 ° C. Can be used in furnaces, plastics, steel and other high temperature equipment;

3. Corrosion-resistant bearings: The material itself has the characteristics of corrosion resistance, and can be used in the fields of strong acid, alkali, inorganic, organic salt, seawater, etc., such as: electroplating equipment, electronic equipment, chemical machinery, shipbuilding, medical equipment, etc.

4. Anti-magnetic bearing: Because it is non-magnetic, it does not suck dust, which can reduce the surface peeling of the bearing, thereby reducing running noise. Can be used in demagnetization equipment. Precision instruments and other fields.

5. Electrically insulated bearings: Due to the high electrical resistivity, the bearings can be prevented from being damaged by arcs, and can be used in various electrical equipment that requires insulation.

6. Vacuum bearings: Due to the unique oil-free self-lubricating characteristics of ceramic materials, in the ultra-high vacuum environment, it can overcome the problem that ordinary bearings cannot achieve lubrication. Note: For the above five types of bearings, the same set of bearings can be applied to high temperature, high speed, acid and alkali, magnetic field, non-insulation, but due to different material properties (please refer to the performance table of rare earth ceramic materials), when customers choose products, According to your application, choose the most suitable ceramic bearing.