Electrical Insulated Taper Roller Bearing

China high quality Electrical Insulated Taper Roller Bearings manufactured by KOMEL include an inner ring, outer ring, hollow shaft, and housing. Differences in electrical insulation result in differences in design or in the use of materials. The most common method is to apply an indoor or outdoor insulation layer, such as a ceramic layer, epoxy resin layer, and so on. e. The protective layer is usually thin but has good insulation properties. It also involves the use of heat sinks made of heat sinks, electrically isolating the moving parts of the inner and outer rings, preventing electrical current.

The inner tubes, outer tubes, and scaffolds are generally made of high-quality metallic materials, such as electrically insulated stainless steel wire (e.g., GCr15), and through appropriate heat treatment processes, the requirements of good strength, stiffness, and load-bearing capacity of the tubes can be met. The most commonly used heating materials are ceramic materials such as aluminum oxide, which have high wear resistance, excellent thermal properties, and can maintain good thermal performance during bearing operation. Insulation materials can be made of insulating plastic such as polytetrafluoroethylene, which has good electrical insulation and low corrosion resistance.

Electrical Insulated Taper Roller Bearings have good electrical insulation performance, high load, high reliability, etc. e. characteristics, and are widely used in industrial applications such as industrial engines, power plants, mining machinery, and petrochemical equipment.

Parameter (Specification)

Suffixes

Related to internal design

· The bearing suffix "VL2071" indicates that this bearing is an inner ring insulated bearing. The outer surfaces of both its inner and outer rings are provided with an aluminum oxide insulating coating, which belongs to the standard coating.

· The bearing suffix "VL0241" indicates that this bearing is an outer ring insulated bearing. The outer surface of its outer ring is coated with an aluminum oxide coating, which belongs to the standard coating, and the insulation capacity is as high as 1000V DC

Related to tolerance class

· P0: Normal tolerance class. This is the most common tolerance class, suitable for most general industrial applications.

· P6: A tolerance class stricter than P0. It is applicable to situations where a certain level of rotational accuracy is required, such as the feed axes of machine tools.

· P5: Higher precision than P6. It is commonly used in the main shafts of high - precision machine tools, aerospace equipment, and other fields with extremely high precision requirements.

Related to clearance

· C1: Smaller than the normal clearance. It is suitable for situations where strict control of axial and radial displacements is required, such as the main shafts of precision machine tools.

· C2: The clearance is smaller than the normal clearance but larger than C1. It is used when a certain level of clearance control is needed but not as strict.

· CN: Normal clearance. It is the most commonly used clearance class, suitable for most general industrial applications.

· C3: The clearance is larger than the normal clearance. It is often used in high - temperature environments or when the interference fit between the shaft and the bearing housing is relatively large, to compensate for the decrease in clearance caused by temperature changes or the fit.

· C4: The clearance is larger than C3. It is suitable for higher - temperature environments or larger interference fits.

· C5: The largest clearance. It is generally used in special working conditions with high temperature, high speed, or large interference fits.

Application

Industrial motors: Especially in large high-voltage motors and variable-frequency motors, shaft currents are likely to be generated during operation. Electrically insulated tapered roller bearings can protect the motor bearings, improving the reliability and service life of the motors.

Wind power generation: Widely used in the gearboxes, yaw systems, and pitch control systems of wind turbine generator sets, they can prevent the bearings from being damaged by currents generated due to lightning strikes, electrical system imbalances, etc., ensuring the normal operation of wind power generation equipment.

Mining machinery: For example, on the transmission shafts of equipment such as crushers and ball mills, the working environment is harsh and there may be electrical interference. Electrically insulated tapered roller bearings can effectively deal with these situations and ensure the reliable operation of the equipment.

Petrochemical equipment: In equipment such as compressors and pumps, they can avoid bearing failures caused by current problems and meet the requirements of the petrochemical industry for the stability and safety of equipment.

Precautions for Installation and Maintenance

Installation: During the installation process, special attention should be paid to avoiding damage to the insulating coating or insulating components. Ensure the installation accuracy and operate according to the correct installation process to prevent the impact on the insulating performance and the normal operation of the bearings due to improper installation.

Maintenance: Regularly check the insulating performance of the bearings to ensure that there are no problems such as damage or aging of the insulating layer. At the same time, check the lubrication and sealing conditions of the bearings to ensure good lubrication and sealing states, so as to extend the service life of the bearings.