VL0241 Grade Insulation: 3000V Protection Eliminating Erosion – The outer ring features a plasma-sprayed aluminum oxide coating (>100μm). Tested breakdown voltage exceeds 3000V DC.
TFL 6316M/C3VL0241 is fully compatible with SKF/FAG/NTN/NKE/NSK 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 |
|---|---|---|---|---|
| 6316M/C3VL0241 | 6316-M-J20AA-C3 | 6316-M-C3-SQ77 | 6316HDY2C3 | 7MC3-6316L1BC3 |
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.
Type “M” Brass Cage – Heavy-Duty & Vibration Resistant
C3 Clearance Design – Adapted for Heat, No Seizing
Alumina Coating – Breakdown voltage up to 3000V and resistance up to 200 MΩ.
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 6316M/C3VL0241 is a robust solution for the non-drive end of heavy-duty traction motors used in metro systems and electric locomotives, such as those on CRRC or Siemens Mobility platforms. In this application, the Machined Brass Cage (M) is strictly required to withstand the intense g-forces and mechanical shocks transmitted from the track, ensuring the bearing maintains structural integrity where a steel cage might fail fatigue. Leveraging the agility of China’s massive industrial supply chain, TFL offers a distinct advantage in the production of these specialized brass-cage bearings; we can provide rapid turnaround times for large orders, allowing global railway maintenance depots to secure high-spec replacements much faster than through traditional European OEM channels, thus keeping fleet availability high.
Designed for the main ventilation fans in underground coal or metal mines, typically manufactured by Howden or TLT-Turbo. These massive fans operate continuously under heavy radial loads, necessitating the robust geometry of the 63-series combined with the stability of a Brass Cage to prevent catastrophic failure. The VL0241 insulation serves as a critical safety feature in these hazardous environments; by effectively blocking stray currents and preventing spark generation within the bearing, it helps mining operators strictly comply with ATEX or MA (Mining Safety) explosion-proof regulations, mitigating the risk of ignition in methane-rich environments while protecting the motor from inverter-induced damage.
This bearing is frequently deployed in API 610 heavy-duty centrifugal pumps found in refineries and chemical plants, such as those from Sulzer or Flowserve. These pumps often handle high-viscosity fluids or operate at high pressures, placing significant stress on the 80mm motor shaft. The Machined Brass Cage offers superior wear resistance and durability in chemically aggressive atmospheres compared to pressed steel. TFL’s insulated design provides a drop-in replacement that protects the motor from electrical fluting caused by Variable Frequency Drives, offering refinery maintenance managers a cost-effective and reliable alternative to extend the Mean Time Between Failures (MTBF) of critical assets.
*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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