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6219/C3VL0241 Electrically Insulated Ball Bearings

6219/C3VL0241 Electrically Insulated Ball Bearings

The picture shows an electrical insulated bearing 6219/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.

Premium Electrically Insulated Bearing 6219/C3VL0241 – Ideal for Electric Drives & Rotating Equipment

  • Superior Electrical Insulation: The outer ring features a premium aluminum oxide coating that effectively blocks stray currents, preventing electrical erosion and fluting.
  • Optimized C3 Clearance: Designed with C3 internal clearance to accommodate high operating temperatures and faster speeds typical in VFD motors
  • Robust Steel Cage: Equipped with a pressed steel cage (J-type) that offers stability and reliability under fluctuating load conditions compared to standard cages.
  • Standard Dimensions: With a 95mm bore, 170mm OD, and 32mm width, it perfectly matches standard 6219 dimensions for easy retrofitting without mechanical modification.
$ 283 /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 6219/C3VL0241
  • Equivalent Interchange 6219/C3VL0241 (SKF), 6219-J20AA-C3 (FAG), 6219-M-C3-SQ77 (NKE), 6219HDY2C3 (NSK), 7MC3-6219C3 (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 170.0 mm
  • Width 32.0 mm
  • Net Weight 2.63 kg
  • Basic Dynamic Load Rating 114.0 kN
  • Basic Static Load Rating 81.5 kN
  • Reference Speed 8000.0 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
6219/C3VL0241 Electrically Insulated Ball Bearings Drawing.dwg
Download DWG Download PDF

6219/C3VL0241 Equivalent Interchange Brands

Choosing TFL isn’t just about matching specs; it’s about flexibility. While big brands often have rigid high MOQs and lead times extending to months, TFL supports lower minimum order quantities, allowing you to test a smaller batch first. Our agile production line means faster delivery, ensuring your critical motors aren’t sitting idle waiting for parts. Plus, we offer customized packaging solutions for distributors, giving you a competitive edge in your local market without the premium price tag.
TFL SKF FAG NKE NSK NTN
6219/C3VL0241
6219/C3VL0241
6219-J20AA-C3
6219-M-C3-SQ77
6219HDY2C3
7MC3-6219C3

Why Choose TFL 6219/C3VL0241 Electrically Insulated Bearings?

TFL utilizes advanced plasma spraying technology to apply the ceramic coating, ensuring an inseparable bond with the bearing steel. Unlike inferior alternatives where coatings may flake under stress, our 6219/C3VL0241 guarantees consistent insulation performance even in humid or harsh environments.
The picture shows an electrical insulated bearing 6219/C3VL0241. Its outer ring has an insulating coating and the cage is made of steel.

Features of 6219/C3VL0241

  • 95mm Inside Diameter x 170mm Outside Diameter x 32mm Width.
  • Aluminum oxide layer on the outer ring withstands up to 3000V DC.
  • C3 radial clearance allows for thermal expansion in variable speed applications.
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Common Applications of Electrically Insulated Bearings

Electrically insulated bearings such as 6219/C3VL0241 are widely used in machinery where electrical current may damage standard bearings. The ceramic insulation coating enhances reliability by preventing pitting, fluting, and premature failure, while also acting as a barrier against voltage-induced corrosion. This helps maintain smooth rotation and full load-carrying capability.
insulated bearing used for explosion-proof motors

Electric Motors

Electrically insulated bearings are typically installed on the non-drive end (NDE) to interrupt electrical current loops. For example, in Siemens Loher Chemstar motors, the NDE is equipped as standard with a 6219 C3 bearing in both IM B3 and IM B5 mounting arrangements. Upgrading the NDE bearing to TFL 6219/C3VL0241 effectively blocks shaft currents generated by variable frequency drives (VFDs).
the image shows a petrochemical process pump and a deep groove ball bearing for pumps

Industrial Water Pumps

In municipal water treatment applications, large pumps such as the Grundfos NK/NKE series—especially larger models like the NK 150-315—are commonly driven by external VFDs for flow control. Using TFL 6219/C3VL0241 ensures continuous pump motor operation and prevents grease degradation caused by electrical discharge.

The picture shows the insulated bearings used on wind turbines.

Wind Turbine Generators

Generators driven by wind or other prime movers—such as ABB and GE wind turbines and Caterpillar diesel generator sets—are prone to shaft voltage and stray currents. Electrically insulated bearings are applied in the main generator bearings to manage rotor-induced currents and ensure reliable power output from the wind farm. The VL0241 coating ensures that unstable currents caused by gusting winds or grid switching do not weld the rolling elements to 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.

Q&A

What is the difference between 6219/C3VL0241 and 6219/C3VL2071?

The primary difference lies in the location of the insulation coating. 6219/C3VL0241 features an aluminum oxide coating on the outer ring, which is the most common configuration for electric motors where the outer ring is seated in the housing. 6219/C3VL2071 has the coating on the inner ring, used in applications where the outer ring rotates or where specific housing fits require inner-ring insulation. Both versions are available from TFL.

Can I replace a standard 6219/C3 bearing with a 6219/C3VL0241?

Yes, absolutely. The dimensions (95 × 170 × 32 mm) and load ratings are identical. The insulated VL0241 version simply adds an extra layer of protection against electrical damage. For any equipment connected to a VFD, this is an excellent upgrade that delivers significantly longer service life compared to standard bearings.
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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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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.

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