Schaeffler Electrically Insulated Bearing

Common mode voltage will cause the motor to generate shaft voltage and shaft current. After these shaft currents pass through the rolling bearings, they will cause electrical corrosion to the bearings, accelerate the degradation of the lubricant, and leave electrical corrosion grooves on the rolling elements and raceways, eventually causing the motor to unexpected failures and shortened life.

Generally speaking, it is difficult to completely eliminate electrical corrosion of rolling bearings. However, if the passage of current can be significantly reduced or prevented, bearing losses can be avoided. In order to solve the problem of common mode voltage, Schaeffler has launched a series of insulated bearings , find the perfect solution for your application.

Schaeffler electrically insulated bearing series

Hybrid ceramic insulated bearings

1. Effectively reduce maintenance costs

2. Improve equipment performance and reliability

3. Longer lubrication cycle

4. Interchangeable with standard bearings

Features:

1. Silicon nitride ceramic rolling elements combined with bearing steel rings have high resistance to current flow

2. The application of ceramic rolling elements reduces the overall weight of the bearing

3. Same dimensions and tolerances as standard bearings

Advantages:

1. Excellent anti-pollution, anti-corrosion and anti-current protection properties, reducing corrosion cracks

2. Low friction, high speed (20% higher than all-steel bearing speed), low temperature rise

3. Extend the service life of grease

Customer benefits:

-- Significantly reduced risk of bearing failure and higher bearing durability

-- Extend the service life of the entire machine and reduce maintenance costs

-- Low energy resource consumption, helping electrical equipment become carbon neutral

The main types of hybrid ceramic insulated bearings are various ball bearings and cylindrical roller bearings

Ceramic coated insulated bearings

Features:

Plasma spraying technology is used on the outer and inner ring outer surfaces

Aluminum oxide powder coating provides a high level of insulation protection

Interchangeable size with standard bearings

Advantages:

Stable electrical insulation protection

Wear resistance, high humidity resistance

Excellent thermal conductivity

Extended grease service life

Customer benefits

Reduce maintenance costs and improve overall machine availability

The main types of bearings include deep groove ball bearings and cylindrical roller bearings, while customized services are provided to meet the specific needs of different types of bearings.

High-performance polymer-coated insulated bearings

Features: Exclusively developed high-performance polymer coating

Outer ring is coated with plastic

Same size and installation method as standard bearings

Advantages:

Ultra-high AC and DC impedance

Good compatibility and corrosion resistance with grease

Insulation performance is not affected by temperature and humidity

Customer benefits:

Reduce maintenance costs and improve overall machine availability

The main types of this bearing include various types of ball bearings