Plasma Spray Technology: Creates a coating with excellent wear and heat resistance.
Alumina Coating: Breakdown voltage up to 3000V and resistance up to 200 MΩ.
Competitive Pricing: Factory-direct sales allow us to offer prices below the market average.
Flexible MOQ: Low Minimum Order Quantity (MOQ). Supports both small-batch and large-volume orders.
Fully interchangeable: The TFL 6309/C4VL0241 bearing matches SKF, FAG models in dimensions, precision, and insulation performance, enabling direct replacement.
Each TFL bearing undergoes strict dielectric and dimensional testing to ensure long-term operational stability and reliability.
Proven in VFD motor and industrial drive applications, TFL provides a reliable, cost-effective alternative to major brands,
delivering equal performance while significantly reducing the total cost of ownership (TCO).
| SKF | FAG |
|---|---|
| 6309/C4VL0241 | 6309-J20AA-C4 |
Plasma Spray Coating Technology – uniform, high-bond ceramic layer (100–500 μm). Breakdown Voltage up to 3000 V – tested under IEC standards. Precision Machining – stable performance under vibration and temperature fluctuations. 100% Batch Testing – each lot checked for coating thickness and resistance
Breakdown Voltage up to 3000 V – tested under IEC standards.
Standard Dimensions: Built to international standards for direct replacement of same-model bearings.
C4 Clearance: Reserves additional space for thermal expansion.
We offer a variety of electric insulating bearings to choose from. The standard bearing classifications include deep groove ball bearings, cylindrical roller bearings, and tapered roller bearings. We have the standard bearing classifications shown below in stock and can deliver quickly.
In chemical or steel plants, the 6309/C4VL0241 bearing is used in mid-sized motors (10-30 kW) driving pumps, fans, or compressors, like cooling fan motors. Its mid-size fits shaft diameters, C4 clearance handles high temperatures (80-120°C) and thermal expansion, while insulation prevents VFD current leakage, reducing electrical erosion and continuous operation failures.
The 6309/C4VL0241 bearing suits rotor bearings in backup diesel generators or small wind turbines (20-50 kW). Its size matches mid-power generators, C4 clearance manages thermal deformation during power generation, and insulation protects high-voltage coils from current passing through, avoiding bearing damage.
For centrifugal or hot water circulation pumps in chemical or power plants, the 6309/C4VL0241 bearing’s 45 mm bore fits pump shafts. C4 clearance compensates for thermal expansion and vibration, and insulation guards against electrical corrosion in motor-driven pumps, especially in humid, high-heat settings.
*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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