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6320M/C3VL0241 Electrically Insulated Ball Bearings

6320M/C3VL0241 Electrically Insulated Ball Bearings

The picture shows an electrical insulated bearing 6320M/C3VL0241. Its outer ring has an insulating coating and the cage is made of brass.
VFD motor bearing with inner ring insulation and brass cage for high-vibration applications.
The picture shows an electrically insulated deep groove ball bearing 6312M/C3VL0241
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.
The picture shows an electrical insulated bearing. Its outer ring has an insulating coating and the cage is made of brass.

TFL 6320M/C3VL0241 Insulated Bearings Dealer: Superior Electrical Protection for Worldwide Motor Brands

  • Electrical Insulation Performance: The outer ring is coated with an aluminum oxide insulation coating (VL0241) capable of withstanding approximately 1,000 V DC, preventing stray currents from damaging the bearing.
  • Robust and Reliable Structure: Features a machined brass cage (type “M”) with C3 internal clearance (suitable for thermal expansion or higher speed applications).
  • Seamless Installation: Strictly executed to P0/P6 precision standards with precise dimensions (100x215x47mm), allowing for direct replacement without modifying the shaft or housing.
  • Compatibility Guarantee: Directly interchangeable with major brands like SKF, NTN, FAG, NKE, and NSK for seamless integration.
$ 3000 /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 6320M/C3VL0241
  • Equivalent Interchange 6320M/C3VL0241 (SKF), 6320-M-J20AA-C3 (FAG), 6320-M-C3-SQ77 (NKE), 6320HDY2C3 (NSK), 7MC3-6320L1BC3 (NTN)
  • Product Category Electrically Insulated Ball Bearings
  • Coating Suffix VL0241
  • Insulating Coating Types Insulation coating on outer ring
  • Manufacturers TFL
  • Bore Diameter 100.0 mm
  • Outside Diameter 215.0 mm
  • Width 47.0 mm
  • Net Weight 8.02kg
  • Basic Dynamic Load Rating 182.0 kN
  • Basic Static Load Rating 140.0 kN
  • Reference Speed 6700.0 r/min
  • Breakdown Voltage (DC) 1000 ~3000 V
  • Layer Thickness 100~500 µm
  • Electrical Resistance 50~200 MΩ
  • Cage Material Brass cage
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
6320M/C3VL0241 Electrically Insulated Ball Bearings Drawing.dwg
Download DWG Download PDF

6320M/C3VL0241 Equivalent Interchange Brands

TFL’s 6320M/C3VL0241 is a perfect quality match for the SKF 6320M/C3VL0241, NTN equivalents, FAG insulated series, NKE deep groove models, and NSK insulated bearings. Beyond performance matching, TFL offers superior value, including significantly lower prices, reduced Minimum Order Quantities (MOQ) for easier procurement, faster global logistics for rapid delivery, and flexible customization options to meet specific application needs.
TFL SKF FAG NKE NSK NTN
6320M/C3VL0241
6320M/C3VL0241
6320-M-J20AA-C3
6320-M-C3-SQ77
6320HDY2C3
7MC3-6320L1BC3

Why Choose TFL 6320M/C3VL0241 Electrically Insulated Bearings?

TFL employs advanced plasma spraying technology, ensuring strong coating adhesion that is resistant to peeling. Every 6320M/C3VL0241 unit undergoes strict insulation resistance testing and dimensional verification before leaving the factory. This ensures it is your best choice for maintaining high-voltage motors and variable frequency equipment, balancing high performance with cost-effectiveness.
The picture shows an electrical insulated bearing 6320M/C3VL0241. Its outer ring has an insulating coating and the cage is made of brass.

Features of 6320M/C3VL0241

  • VL0241 standard Aluminum Oxide coating on the outer ring, resistant to humid environments.
  • Single row deep groove ball bearing with a Machined Brass Cage (M), ideal for heavy-duty applications.
  • 100 x 215 x 47 mm (Metric), Weight approx 8.1 kg.
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Common Applications of Electrically Insulated Bearings

Electrically insulated deep groove ball bearings like the 6320M/C3VL0241 are commonly used in applications where stray electrical currents could cause premature failure through erosion or pitting. The insulation coating acts as a barrier, extending bearing life, reducing downtime, and improving overall system efficiency in high-voltage or variable-frequency drive (VFD) setups.
Electrically insulated deep groove ball bearings used for pumps

Water Pumps

The 6320M/C3VL0241 bearing is frequently employed in the motor drive sections of centrifugal or submersible pumps to handle radial loads. Its insulating coating prevents motor current leakage into the pump shaft, thereby avoiding bearing pitting and failure. For example, in the KSB RDL series of standardized chemical pumps used in the petrochemical industry, this bearing model is utilized at the motor’s Non-Drive End (NDE). The insulation effectively prevents electrical current from passing through the bearing into the pump body, reducing maintenance costs and sustaining pump efficiency in corrosive media.
the image shows a wind turbine and an insulated bal;l bearing with brass cage

Wind Turbines

This bearing model is commonly found in the generator or gearbox sections of wind turbines, designed to withstand heavy loads while blocking stray currents generated during power production. In advanced applications such as GE Renewable Energy’s Haliade-X offshore wind turbines (12 MW), similar bearings are applied in the main generator. The insulation coating offers dual protection against salt spray and electrical currents, extending bearing service life and optimizing energy conversion efficiency.

TFL's electrical insulated bearings for high-speed railways

Railways

The 6320M/C3VL0241 is widely used in railway traction motors and drive systems to support high-speed rotation and prevent electrical erosion caused by currents from pantographs or regenerative braking. A notable example is the Alstom Pendolino high-speed train series (e.g., ETR 600, capable of 250 km/h), where this bearing is used in both the Drive End (DE) and Non-Drive End (NDE) of the traction motors. The coating isolates the current to prevent bearing damage within the tilting train technology, a solution proven over years of operation on Italian and European lines.

*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 6320M/C3VL0241 and 6320/C3VL0241?

The main difference is the cage material. The 6320M features a Machined Brass Cage, which is superior for high vibration, high acceleration, and heavy-duty applications. The standard 6320 (without the M) typically uses a pressed steel cage, which is suitable for standard loads. TFL offers both versions.

Can I use this bearing to replace a standard 6320 bearing in a VFD motor?

Yes, absolutely. The dimensions are identical. Replacing a standard 6320 with a TFL 6320M/C3VL0241 is a recommended upgrade for any motor controlled by a VFD, as it adds protection against electrical damage that standard bearings lack.
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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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