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6319/C3VL0241 Electrically Insulated Ball Bearings

6319/C3VL0241 Electrically Insulated Ball Bearings

The picture shows an electrical insulated bearing 6319/C3VL0241. Its outer ring has an insulating coating and the cage is made of steel.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of steel.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of steel.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of steel.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of steel.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of steel.

High-Performance Electrically Insulated Bearing 6319/C3VL0241 — Ideal for Motors, Pumps and Heavy Machinery

  • Insulation Protection: Features a high-resistivity coating to prevent electrical current passage and bearing damage.
  • High Load Capacity: Designed to handle radial and axial loads efficiently in demanding applications.
  • Durability: Enhanced resistance to wear, extending service life in harsh environments.
  • Compatibility: Seamless fit as a direct replacement for major brands like SKF and NTN.
$ 2250 /Each
  • Customized Logo: Min. Order 1 Piece
  • Customized Packaging: Min. Order 1 Piece
  • Inventory: In stock
  • Country of Origin: China
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Bulk orders will be discounted, please contact our sales for a bulk quote. We will ship your order via FedEx within 3-5 working days after you complete the payment and the related information will be sent to your email.
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    Description Interchangeable Features Application Q&A Related products

Product Parameters

  • Model 6319/C3VL0241
  • Equivalent Interchange 6319/C3VL0241 (SKF); 6319-J20AA-C3 (FAG); 6319-M-C3-SQ77 (NKE); 6319HDY2C3 (NSK); 7MC3-6319C3 (NTN)
  • Product Category Electrically Insulated Ball Bearings
  • Coating Suffix VL0241
  • Insulating Coating Types Insulation coating on outer ring
  • Manufacturers TFL
  • Bore Diameter 95.0 mm
  • Outside Diameter 200.0 mm
  • Width 45.0 mm
  • Net Weight 5.65 kg
  • Basic Dynamic Load Rating 159.0 kN
  • Basic Static Load Rating 118.0 kN
  • Reference Speed 7000.0 r/min
  • Breakdown Voltage (DC) 1000 ~3000 V
  • Layer Thickness 100~500 µm
  • Electrical Resistance 50~200 MΩ
  • Cage Material Sheet metal
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
6319/C3VL0241 Electrically Insulated Ball Bearings Drawing.dwg
Download DWG Download PDF

6319/C3VL0241 Equivalent Interchange Brands

TFL’s 6319/C3VL0241 electrically insulated bearings serve as perfect equivalents to SKF, NTN, FAG, NKE, and NSK models, delivering comparable or superior quality at significantly lower prices. With lower minimum order quantities (MOQ), faster global shipping, and customizable options for specific tolerances or coatings, TFL provides greater flexibility for buyers。
TFL SKF FAG NKE NSK NTN
6319/C3VL0241
6319/C3VL0241
6319-J20AA-C3
6319-M-C3-SQ77
6319HDY2C3
7MC3-6319C3

Why Choose TFL 6319/C3VL0241 Electrically Insulated Bearings?

TFL utilizes advanced plasma spraying technology to apply the ceramic coating. Unlike inferior painted coatings, our bond is metallurgical, ensuring the insulation layer does not chip or flake under extreme pressure or temperature changes. We specifically target the “Electrical Erosion” failure mode common in VFD-controlled motors, ensuring your equipment runs longer without bearing fluting issues.
The picture shows an electrical insulated bearing 6319C3-VL0241. Its outer ring has an insulating coating and the cage is made of steel.

Features of 6319/C3VL0241

  • Open-type deep groove ball bearing with 95x200x45 mm.
  • Radial internal clearance C3 and steel cage.
  • Electrical insulation coating on the outer ring, breakdown voltage approx. 3000 V.
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Common Applications of Electrically Insulated Bearings

Electrically insulated bearings are typically employed in Variable Frequency Drive (VFD) systems or other applications where high currents pose a risk of bearing damage. An insulating coating prevents the flow of electric current, thereby reducing pitting, fluting, and premature failure. This extends equipment service life and minimizes operational downtime.
The insulated ball bearings used in the motor

VFD Motors

The high-frequency switching inherent in VFDs generates shaft voltages. Without insulation, discharge currents pass through the rolling elements and raceways, creating an Electrical Discharge Machining (EDM) effect that can destroy a bearing within months. For ABB’s large multi-pole M3BP motors (Frame size 400), the 6319 bearing is the standard specification for the Non-Drive End (NDE). Installing an insulated bearing at the NDE effectively breaks the current loop, thereby protecting the standard bearing located at the Drive End (DE).
insulated bearing used for explosion-proof motors

Explosion-Proof Motors

To prevent the external propagation of flames, explosion-proof motors feature tightly sealed housings, which results in less efficient heat dissipation compared to standard motors. If a standard 6319 bearing is used, electrical arcing from shaft currents can cause the bearing to overheat. This may raise the motor's surface temperature beyond its explosion-proof rating limits (e.g., T3 or T4), potentially triggering an explosion in the facility. Consequently, the SEW EDRN315S series of explosion-proof motors utilizes a 6319 insulated bearing on the B-side (NDE). This interrupts the current path and ensures compliance with explosion-proof safety standards.

insulated bearing used in high-power motors in mining

Mining Applications

High-power motors in mining are frequently driven by medium-voltage VFDs; therefore, manufacturers employ either insulated endshields or insulated bearings to prevent motor failures caused by shaft currents. Within WEG’s NEMA product line, Frame 440T and 580 motors are typically used to drive large crushers, mining conveyors, or heavy-duty pumps. In these specific motors, opting for a 6319 insulated bearing provides a cost-effective alternative for blocking shaft currents while achieving the same protective result.

*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.

Q&A

Can the TFL 6319/C3VL0241 replace the brass cage version (6319M)?

That depends on the application. The standard 6319/C3VL0241 typically features a steel cage. If your application involves high vibration or rapid acceleration (such as in mining screens), we recommend using our 6319M/C3VL0241 (brass cage) version. We also supply this variant—please specify your preference when placing your order!

Is the 6319 bearing suitable for both horizontal and vertical mounting?

Yes. Deep groove ball bearings like the 6319 series can accommodate both radial loads and axial loads in either direction. This makes them suitable for use in both horizontally mounted electric motors and vertically mounted water pump motors.
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We’re more than a supplier; we’re a manufacturing partner with 20+ years of R&D experience. Speak with our engineers, and you’ll find our expertise can solve your electrical erosion issues and significantly reduce long-term maintenance costs.
 
Email: info@sdtflbearings.com
Address: Room 501, Building 1, No. 4567, Tangye Middle Road, Jinan, China

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