Chinese Manufacturer – Delivers premium quality matching ISO standards with a competitive cost advantage.
Electrical Insulation – The outer ring features a plasma-sprayed aluminum oxide coating with dielectric strength up to 3000V, blocking shaft currents to prevent electrical erosion and lubricant degradation.
Full Compatibility and Direct Replacement – Matching dimensions of SKF, NSK, and FAG equivalents for seamless interchange, delivering equal reliability at a lower cost.
TFL 6315/C3VL0241 is fully compatible with SKF/FAG/NSK/NTN/NKE 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 |
|---|---|---|---|---|
| 6315/C3VL0241 | 6315-J20AA-C3 | 6315-M-C3-SQ77 | 6315HDY2C3 | 7MC3-6315C3 |
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 9000 r/min.
Basic Dynamic Load Rating 119.0 kN – Reinforced steel design handles heavy radial loads and shocks reliably.
Sheet metal cage with C3 clearance — for enhanced radial play and reliability.
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 6315/C3VL0241 is the standard workhorse for the drive-end of heavy-duty industrial electric motors, such as the Siemens Simotics SD or ABB M3BP series (typically IEC Frame 280). The 63-series geometry handles substantial radial loads from belt drives or couplings, while the C3 clearance accommodates the thermal expansion of the 75mm shaft during operation. Capitalizing on China’s massive manufacturing scale for standard series bearings, TFL can offer these high-demand insulated units with exceptional cost-efficiency and rapid availability, providing global distributors with a competitive edge against the long lead times and high premiums often associated with European incumbents.
This bearing is widely installed in the motors of large industrial ventilation fans, typified by FläktGroup or Howden axial fans used in tunnel infrastructure. The robust Standard Steel Cage is preferred here for its low friction and lower heat generation during continuous steady-state operation. As global environmental policies like the EU Ecodesign Directive increasingly mandate the use of Variable Frequency Drives (VFDs) to reduce energy consumption in ventilation systems, TFL’s VL0241 insulated outer ring becomes a critical compliance enabler, ensuring that these mandatory energy-saving measures do not result in costly motor failures due to electrical erosion.
Designed for single-stage centrifugal pumps in municipal water treatment or irrigation, such as Grundfos NK or Xylem Flygt heavy-duty pumps. The 63-series load rating provides a high safety factor against hydraulic radial forces, while the insulated coating prevents lubricant degradation caused by inverter currents. To support the Supply Chain Resilience strategies of major utility companies, TFL guarantees 100% dimensional interchangeability with SKF 6315/C3VL0241, serving as a reliable “Second Source” to mitigate risks associated with relying on a single European brand for critical infrastructure maintenance.
*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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