EDM Current Protection: Specialized ceramic coating on the inner ring prevents electrical erosion.
High Precision: Manufactured to P6 or P5 standards for low noise and minimal vibration.
Seamless Compatibility: A perfect 1:1 replacement for brands like SKF, FAG, and NKE.
Premium Steel Composition: Manufactured using high-grade vacuum-degassed steel to extend fatigue life and ensure structural integrity under load.
TFL 6316/C3VL2071 is engineered to exceed expectations as a direct alternative to industry giants like SKF, FAG, NTN, NKE, and NSK. TFL offers the same micron-level precision and insulation integrity as premium brands but with significantly lower costs, flexible MOQs, and rapid global logistics.
| TFL | SKF | FAG |
|---|---|---|
|
6316/C3VL2071
|
6316/C3VL2071
|
6316-J20C-C3
|
TFL ‘s 6316/C3VL2071 specifically features Inner Ring Insulation, which is critical for applications where the outer ring rotates or where the housing is grounded. We strictly control the plasma spraying process to ensure the coating bonds perfectly, preventing cracking under thermal stress.
Note: We also offer other configurations in this series including 6316M/C3VL0241 (Outer Ring), 6316/C3VL0241, and 6316M/C4VL0241 to suit various mounting requirements.
Inner Ring Coating (VL2071): Specialized ceramic insulation applied to the bore/inner ring, ideal for applications with rotating outer rings or specific grounding needs.
Standard Dimensions: 80mm ID x 170mm OD x 39mm Width, adhering strictly to DIN/ISO boundary dimensions.
Enhanced Steel Quality: Uses high-purity vacuum-degassed GCr15 steel for maximum fatigue resistance.
Electrically insulated bearings are the gold standard for protecting rotating components in environments where electric motors are controlled by Variable Frequency Drives (VFDs). VFDs often induce common-mode voltages that lead to harmful bearing currents. By providing a high-resistance path, the 6316/C3VL2071 prevents the fluting or pitting of the raceways.
Traction motors in trains operate under severe electrical and mechanical stress. The return current often flows through the wheels, but stray currents must not pass through the motor bearings. ABB Traction Motors (e.g., specific older modular series used in light rail). In these applications, the 6316/C3VL2071 is used to isolate the rotor from the stator frame. The inner ring coating is crucial here because of the complex grounding paths in bogie designs.
Wind generators face issues with high-frequency currents caused by the rapid switching of power electronics in the converter systems. Vestas or GE Wind Turbine Generator Retrofits. While main shaft bearings are larger, the auxiliary generators and pitch motors often utilize the 63-series. A 6316/C3VL2071 can be found in the generator's non-drive end to stop circulating currents caused by the DFIG (Doubly Fed Induction Generator) topology.
Variable Frequency Drives induce high-frequency shaft voltages. In medium to large motors (75kW+), the 6316/C3VL2071 is frequently used on the Non-Drive End (NDE) or Drive End (DE) depending on the grounding scheme. Siemens 1LA8 and 1LG4 Series Motors. These heavy-duty asynchronous motors often utilize the 6316 series insulated bearings to prevent premature failure in converter-fed operation. The inner ring insulation is particularly useful when the housing is grounded, and the shaft carries the potential.
*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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