Machined Brass Cage (M): Provides superior stability and reduced friction for high-speed and high-vibration environments.
Direct High-End Interchange: Fully compatible with premium models like SKF 6317M/C3VL0241 and FAG 6317-M-J20AA-C3.
C3 Internal Clearance: Optimized for thermal expansion, ensuring long-term reliability in continuous duty motors.
Extended Life in VFD Systems: Eliminates common causes of bearing failure such as electrical fluting and pitting.
TFL’s 6317M/C3VL0241 provides a high-value alternative for industries dependent on the robust performance of brass-caged insulated bearings from SKF, FAG, or NTN. While matching the exacting material standards required for machined cages and dielectric coatings, TFL delivers significant cost efficiencies and superior supply chain agility.
| TFL | SKF | FAG | NKE | NSK | NTN |
|---|---|---|---|---|---|
| 6317M/C3VL0241 | 6317M/C3VL0241 | 6317-M-J20AA-C3 | 6317-M-C3-SQ77 | 6317HDY2C3 | 7MC3-6317C3 |
The TFL 6317M/C3VL0241 is manufactured for applications where failure is not an option. We utilize high-grade brass for our machined cages to ensure they withstand the centrifugal forces and vibrations that would destroy a standard steel cage. Combined with our precision plasma-sprayed VL0241 coating, this bearing offers a dual layer of protection: mechanical robustness against physical stress and electrical isolation against current erosion. TFL creates a reliable B2B partnership by delivering this premium specification at a competitive price point, backed by comprehensive quality assurance reports.
Machined Brass Cage (M): The solid, two-piece machined brass cage is roller-guided, reducing friction and heat generation at high speeds while dampening vibrations.
Superior Dielectric Strength: The outer ring features a 100μm Aluminium Oxide coating that guarantees insulation resistance > 50 MΩ @ 3000V DC, protecting against EDM.
Precision Grade P6/ABEC-3: Ensures tight tolerances for smooth running and reduced energy consumption.
The 6317M/C3VL0241 is engineered for high-performance motors where steel cages may fail due to vibration or high heat. It is a vital component in sectors where reliability is non-negotiable.
Traction motors in trains operate under severe conditions involving high shock loads and rapid speed changes. The ABB or Siemens traction motor series used in regional trains typically mandate bearings with machined brass cages (“M”) for mechanical stability and electrical insulation to prevent current leakage through the gearbox. The TFL 6317M/C3VL0241 is the perfect retrofit solution, providing the necessary mechanical robustness to withstand track vibrations while blocking stray currents from the inverter traction system.
In the mining industry, cone crushers and ball mills (e.g., equipment by Metso Outotec or Sandvik) place immense stress on electric motor bearings. The motors driving these units often suffer from VFD-induced currents. Standard steel cages can fatigue and fracture under the shock loads of crushing rocks. The TFL 6317M/C3VL0241 utilizes its machined brass cage to survive the physical punishment, while the VL0241 coating prevents early failure from electrical erosion, ensuring continuous ore processing.
Large oil-free screw compressors manufactured by companies like Atlas Copco or Ingersoll Rand operate at high speeds and require precise shaft guidance. The “M” cage in the TFL 6317M/C3VL0241 provides superior high-speed stability compared to steel cages. As these compressors are increasingly driven by VFDs for energy efficiency, the outer ring insulation is critical to protect the bearings from high-frequency shaft voltages that cause fluting on the raceways.
*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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