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Premium insulated bearing solutions designed to prevent electrical current damage in motors, generators, and industrial equipment. Engineered for reliability, longevity, and superior performance in demanding environments.
As a leading manufacturer based in China, TKW Bearings specializes in high-performance electrically insulated bearings that protect critical machinery from electrical erosion and premature failure.
Our electrically insulated bearings are designed with advanced ceramic coatings or polymer layers that provide high dielectric strength, effectively blocking stray currents in electric motors and generators.
These bearings are essential in variable frequency drive (VFD) applications where shaft currents can cause fluting, pitting, and early bearing failure. With insulation resistance exceeding 100 MΩ, our products ensure long service life.
Explore our comprehensive selection of insulated bearings built for diverse industrial applications.
High load capacity with ceramic-coated outer rings for electrical isolation.
Versatile solution for small to medium electric motors and pumps.
Designed for combined radial and axial loads in heavy-duty applications.
Compact design with electrical insulation for space-constrained systems.
High rigidity and accuracy with optional insulation for servo motors.
Lightweight cage design with electrical insulation for high-speed motors.
Rated for continuous operation up to 180°C with stable insulation.
Tailored insulation, seals, and materials for OEM and special applications.
Prevents electrical fluting and pitting caused by circulating currents in VFD-driven motors.
Insulation rated up to 3kV DC ensures reliable current blocking under industrial conditions.
Built with high-purity steel and precision manufacturing for long service life.
Direct replacement for standard bearings—no redesign required in most cases.
Our insulated bearings are trusted across industries where electrical current protection is critical.
Protect windings and bearings from shaft currents in VFD-controlled systems.
Ensure reliability in pitch and yaw systems exposed to electrical transients.
Used in traction motors to prevent bearing current damage.
Ideal for variable speed drives in oil & gas, HVAC, and process industries.
Compact insulated bearings for servo motors and precision actuators.
Heavy-duty insulated bearings for excavators, conveyors, and crushers.
Shaft voltages induced by variable frequency drives (VFDs) can discharge through bearings, causing pitting, fluting, and premature failure.
They feature a ceramic or polymer coating on the outer (or inner) ring that blocks electrical current while maintaining mechanical performance.
Yes, in most cases. Insulated bearings have identical dimensions to standard bearings and serve as direct replacements.
Our standard insulated bearings are rated for up to 3kV DC. Custom higher-voltage options are available upon request.
Yes, we provide custom insulated bearings tailored to specific voltage requirements, dimensions, seals, and materials for OEM applications.
For inquiries, quotes, or technical support, visit our official website to connect with our team.
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