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.
C3 Clearance – Accommodates thermal expansion to prevent seizing during high-speed motor operation.
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.
Chinese Manufacturer – Delivers premium quality matching ISO standards with a competitive cost advantage.
TFL 6313/C3VL0241 is fully compatible with SKF/FAG/NKE/NSK/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 |
|---|---|---|---|---|
| 6313/C3VL0241 | 6313-J20AA-C3 | 6313-M-C3-SQ77 | 6313HDY2C3 | 7MC3-6313C3 |
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.
High reference speed — up to 10000 r/min.
Outer-ring insulation (VL0241) — same dimensions as standard bearing, direct replacement.
C3 Clearance — Ideal for high-speed motor applications, ensuring optimal running room as temperature rises.
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 6313/C3VL0241 is the standard replacement for the Drive End (DE) bearing of Siemens Simotics SD (1LE1) or ABB M3BP motors (IEC Frame size 225). Since these motors use standard C3 clearance, this TFL model ensures perfect dimensional compatibility without the need for custom fitting. The 63-series design handles the belt tension or coupling loads typical in these frame sizes.
The VL0241 coating protects the motor from common VFD-induced currents, providing a cost-effective “drop-in” solution to replace expensive SKF INSOCOAT bearings during routine motor overhauls.
Suitable for electric motors driving Sulzer AHLSTAR or Andritz ACP series process pumps used in paper mills. These pumps operate continuously under heavy radial loads, making the robust 63-series geometry of the 6313 essential compared to lighter bearings.
As paper production relies heavily on VFDs for flow control, stray currents are a major threat. TFL’s insulated bearing prevents lubricant degradation caused by micro-arcing, reducing unscheduled downtime in these high-cost production lines.
Designed for VFD-driven motors in ventilation systems, such as those found in axial fans.
The C3 clearance accommodates the normal operating temperature rise of the motor, while the 65mm bore fits standard medium-duty fan motors.
TFL’s reliable insulation performance (breakdown voltage >1000V) effectively blocks the circulating currents generated by long cable runs and variable frequency drives, matching the lifespan expectations of FAG J20AA bearings at a more competitive price point.
*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.
Discover more related products for your needs. Check out our hot-selling bearing models that serve as trusted alternatives to major brands like SKF and FAG—offering the same performance with greater value.
"*" indicates required fields
"*" indicates required fields
"*" indicates required fields
