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Dongguan Jingtai Bearing Co., Ltd.
Dongguan Jingtai Bearing Co., Ltd. Alibaba
13412164776; 13360655186
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Other commonly used bearing series

Ceramic bearing description


来说说陶瓷轴承的知识 Ceramic bearing manufacturers talk about ceramic bearing knowledge
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 ceramic bearings, ferrules and rolling elements produced by the company are made of all-ceramic materials, including zirconia (ZrO2), silicon nitride (SisN4), 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. Such as: high-speed bearings, high-temperature bearings, corrosion-resistant bearings, anti-magnetic bearings, electrical insulation bearings, etc.
(1) Electrically insulated bearings: Due to the high resistance, the bearings can be prevented from being damaged by arcs, and can be used in various electrical equipment that requires insulation;
(2) High-speed bearings: They have the advantages of cold resistance, low stress elasticity, high pressure resistance, poor thermal conductivity, light weight, and low friction coefficient. Precision equipment
(3) 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.
(4) 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;
(5) Anti-magnetic bearing: Because it is non-magnetic and does not attract dust, it can reduce the bearing's premature peeling and high noise. Can be used in demagnetization equipment. Precision instruments and other fields;
(6) Corrosion-resistant bearings: The material itself has the characteristics of corrosion resistance, and can be applied in the fields of strong acid, alkali, inorganic, organic salt, seawater, etc., such as: electroplating equipment, electronic equipment, chemical machinery, shipbuilding, medical equipment, etc.
3.Bearing model list
(1) Deep groove ball bearings (technical grades: P4, P5, P6, P0)
Deep groove ball bearings, the most representative rolling bearings, have a wide range of applications and can withstand radial and bidirectional axial loads. It is suitable for high-speed rotation and occasions requiring low noise and low vibration, or high temperature, high cold, corrosion, magnetic field, non-insulation and other fields that cannot be applied to steel bearings.
(2) Self-aligning ball bearings
The outer ring raceway of the self-aligning ball bearing has a spherical surface and self-aligning, which can supplement the errors caused by different heart degrees and shaft deflections. It is used to generate different centers of shafts and shells, or parts of shaft flexures, and high-temperature, low-temperature, corrosion, magnetic field non-insulation, etc.
Note: The inclination cannot exceed 3 degrees.
(3) Single-row angular contact ball bearings (technical grades: P4, P5, P6, P0)
Angular contact bearings are suitable for high-speed and high-precision rotation. They do not affect their accuracy in high temperatures, magnetic fields, and water, and can withstand synthetic loads. Standard contact angles are 15 °, 30 °, and 40 °. The larger the contact angle, the greater the axial load capacity, and the smaller the contact angle. The bearing can withstand radial and unidirectional axial loads. They are usually installed in pairs. Please pay attention when purchasing.
(4) One-way thrust ball bearings
One-way thrust ball bearings are composed of a washer-shaped ferrule with a ball rolling raceway and a cage assembled with a ball. Can withstand axial loads but not radial loads.
4. Characteristics of ceramic bearing materials
Compared with the performance of bearing steel, its own weight is 30% -40% of bearing steel, which can reduce the increase of dynamic load and slip caused by centrifugal force. Due to high wear resistance, the rotation speed is 1.3 to 1.5 times that of bearing steel, which can reduce channel surface damage caused by high-speed rotation. The modulus of elasticity is 1.5 times higher than that of bearing steel. The small elasticity of the force can reduce the deformation caused by the high load. The hardness is double that of bearing steel, which reduces wear. The compression resistance is 5 ~ 7 times that of bearing steel. The thermal expansion coefficient is less than 20% of the bearing steel. The coefficient of friction is less than 30% of the bearing steel, which can reduce the heat generated by friction and reduce the premature peeling failure of the bearing due to high temperature. Tensile and bending resistance is equivalent to metal.
5.Installation of ceramic bearings
The ceramic bearings produced by our company have inner diameter, outer diameter and other dimensions as the national standard P4, P5, P6 grade steel bearings. Due to the low thermal expansion coefficient, low heat transfer performance, and small elasticity of ceramic materials, attention must be paid to installation and coordination. If you don't know, please consult our company when you can buy the product, and I will choose the proper fit tolerance for you.
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Keywords: Block bearings, plastic bearings, POM engineering plastic wear-resistant bearings, full-ball plastic bearings, "People's Republic of China Telecom and Information Services Business License" Number: 粤 ICP 备 12074167 号 -2
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