Excellent Electrical Insulation – The outer ring features a plasma-sprayed aluminum oxide coating (100–500 μm thick) with dielectric strength up to 3000V, blocking shaft currents to prevent electrical erosion and lubricant degradation.
Precision Design and High-Speed Capability – With a reference speed of 10000 r/min and precision grinding, it ensures low vibration and noise, ideal for high-speed VFD applications.
Plasma Spray Technology: Creates a coating with excellent wear and heat resistance.
Ample Stock: Our self-owned factory ensures a large inventory, capable of fulfilling most orders.
TFL 6313M/C3VL0241 is fully compatible with SKF/FAG/NSK/NKE/NTN equivalents in dimensions, clearance, and insulation performance, allowing direct replacement without equipment modifications. Each bearing undergoes rigorous dielectric testing and dimensional checks, offering equivalent reliability while reducing total ownership costs. Opting for TFL provides ISO-certified quality and flexible supply chain support.
| SKF | FAG | NKE | NSK | NTN |
|---|---|---|---|---|
| 6313M/C3VL0241 | 6313-M-J20AA-C3 | 6313-M-C3-SQ77 | 6313HDY2C3 | 7MC3-6313L1BC3 |
TFL specializes in the development and manufacturing of electrically insulated bearings, using advanced plasma-spraying technology to ensure a uniform aluminum oxide coating for long-term stable insulation. Certified under ISO 9001:2015, we offer flexible delivery with no MOQ and provide end-to-end services from design to technical support. Choosing TFL means accessing cost-effective products that reduce maintenance costs and downtime risks.
Breakdown voltage (DC) — 1000–3000 V; electrical resistance 50–200 MΩ.
High reference speed — up to 10000 r/min.
Brass Cage – Self-lubricating properties significantly reduce friction and heat generation.
TFL insulated bearings are widely used in VFD motors, generators, pumps, fans, and wind turbine systems. The insulation coating blocks shaft current paths to minimize electrical erosion, making them ideal for high-voltage and variable-speed operations. Our bearings ensure stable performance in humid and vibratory conditions, extending overall system life.
TFL 6313M/C3VL0241 is engineered for the non-drive end of heavy-duty traction motors used in intercity and metro trains. The machined brass cage (M) ensures structural integrity under high-shock conditions, while the VL0241 insulation meets EN 50155 railway electronic equipment standards for stray current protection.
For export markets in the Middle East and Southeast Asia, TFL offers Halal-compliant synthetic grease options to respect local religious customs, ensuring seamless acceptance by regional operators without requiring post-delivery modifications.
Suitable for main ventilation fans in coal and metal mines, where motors operate continuously in hazardous environments. The C3 clearance accommodates the thermal expansion in deep-shaft operations, and the insulated outer ring acts as a critical safety barrier, complying with ATEX or MA (Mining Safety) anti-explosion regulations by preventing sparking from shaft voltages.
TFL provides full traceability and certification documents required by state-owned enterprises, supporting "Cost Reduction & Efficiency Increase" policies by offering a premium alternative to SKF/FAG at a competitive cost.
Designed for API 610 heavy-duty centrifugal pumps driven by high-power VFD motors in refinery processing units. The brass cage provides superior reliability in chemically aggressive atmospheres compared to steel cages, while the insulation protects against inverter-induced bearing erosion.
To meet the Supply Chain Resilience strategies of major energy companies, TFL guarantees 100% dimensional interchangeability with SKF 6313M/C3VL0241, serving as a qualified “Second Source” to mitigate risks associated with relying on a single brand.
*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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