Competitive Pricing: Efficient sourcing channels allow us to offer more competitive pricing than the market average.
Alumina Coating: Breakdown voltage up to 3000V and resistance up to 200 MΩ.
Reliable Quality: Compliant with ISO 9001 and REACH standards. The production process is fully traceable.
Flexible MOQ: Low Minimum Order Quantity (MOQ). Supports both small-batch and large-volume orders.
The TFL 6230/C4VL0241 can 100% directly replace equivalent insulated bearings from leading global brands. Its standardized 150mm large-bore design and mature VL0241 outer-ring insulation technology ensure seamless integration into existing heavy-duty motors and wind systems without modification. Every supplied bearing undergoes strict dielectric strength and precision verification to deliver equivalent reliability.
| SKF | FAG | NTN |
|---|---|---|
| 6230/C4VL0241 | 6230-J20AA-C4 | 7MC3-6230C3 |
TFL is dedicated to integrating and supplying high-quality electrically insulated bearing solutions for global industrial clients. Through refined supply chain management and strict ISO 9001 quality control, we ensure every large-size bearing delivered performs exceptionally under severe conditions. With no MOQ requirements and rapid delivery capabilities, TFL helps maintenance supervisors and procurement managers minimize downtime and optimize Total Cost of Ownership (TCO) during critical equipment repairs.
Plasma-sprayed Alumina Coating — High-bond ceramic layer on the outer ring (100–500 μm).
High Breakdown Voltage — Guaranteed resistance up to 3000 V DC.
C4 Internal Clearance — Provides larger expansion space than C3 for high-temperature/heavy interference fit applications.
The TFL 6230/C4VL0241 large-size insulated bearing is widely supplied for high-power VFD motors, wind turbine main shafts and generators, and heavy industrial compressors. Its excellent insulation layer effectively blocks strong shaft currents common in large drive systems, while the C4 clearance perfectly accommodates severe temperature rises caused by heavy load operations.
TFL 6230/C4VL0241 can be applied in Siemens large high-voltage motors and ABB large AC generator systems. In these high-power machines, VFDs often induce destructive high-frequency shaft currents. The 3000V ceramic-coated bearings provided by TFL effectively protect the raceways, and the C4 clearance accommodates equipment high temperatures, making it an ideal choice for heavy motor maintenance.
In the wind power sector, TFL 6230/C4VL0241 is suitable for the generator ends of megawatt-class turbines like Vestas or Siemens Gamesa. Facing complex temperature variations and variable loads in wind farms, this model utilizes its C4 internal clearance and high-strength dielectric protection to prevent premature bearing failure caused by electrical erosion, enhancing the grid-connection reliability of the entire unit.
For large industrial centrifugal compressors from brands like Atlas Copco or Ingersoll Rand, TFL 6230/C4VL0241 provides exceptional dielectric safeguarding. Large compressors are prone to instant high-voltage surges during VFD startups; this model effectively isolates electrical surges and provides stable support, ensuring trouble-free operation of the compressor drivetrain in severe environments.
*The brands and series mentioned are provided for industry illustration only. Final bearing selection should be confirmed through verification of dimensions, clearance class, insulation type, and operating conditions. For selection assistance or technical consultation, please contact the TFL engineering team for support.
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