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6020/C3VL2071 Electrically Insulated Ball Bearings

6020/C3VL2071 Electrically Insulated Ball Bearings

The picture shows an electrical insulated bearing 6020/C3VL2071. Its inner ring has an insulating coating and the cage is made of steel.
Steel cage bearing with inner ring insulation designed for variable frequency drive motors.
Inner ring insulated deep groove ball bearing with a pressed steel cage.
Side view of an inner insulated bearing with a steel cage for electric motors.
Electrically insulated bearing featuring inner ring ceramic coating and a standard steel cage.
Inner ring coated bearing with stamped steel cage preventing electrical erosion.

Stop Electric Erosion: 6020/C3VL2071 Bearings for VFD Motor Protection

  • Insulation Protection: Inner‐ring coating of aluminium oxide to prevent stray currents and electrical erosion.
  • High Load Capacity: Designed for dynamic and static loads typical of 6020 size deep-groove bearings.
  • Wide Compatibility: Standard dimensions of 100 × 150 × 24 mm make it compatible with common industrial motor housings.
  • OEM-Friendly & Cost-Effective: More economical than premium insulated bearing brands; low minimum order quantity, customizable options, and fast global logistics support.
$ 2025 /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 6020/C3VL2071
  • Equivalent Interchange 6020/C3VL2071 (SKF), 6020-J20C-C3 (FAG)
  • Product Category Electrically Insulated Ball Bearings
  • Coating Suffix VL2071
  • Insulating Coating Types Inner ring insulation coating
  • Manufacturers TFL
  • Bore Diameter 100.0 mm
  • Outside Diameter 150.0 mm
  • Width 24.0 mm
  • Net Weight 1.32 kg
  • Basic Dynamic Load Rating 64.0 kN
  • Basic Static Load Rating 54.0 kN
  • Reference Speed 6100.0 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
6020/C3VL2071 Electrically Insulated Ball Bearings Drawing.dwg
Download DWG Download PDF

6020/C3VL2071 Equivalent Interchange Brands

TFL’s 6020/C3VL2071 electrically insulated deep-groove ball bearings are high-quality and cost-effective alternatives to brands such as SKF, NTN, FAG, NKE, and NSK. They match performance and insulation capability to prevent current-related damage while offering lower cost, more flexible MOQs, faster worldwide delivery, and enhanced customization options.

 

TFL SKF FAG
6020/C3VL2071
6020/C3VL2071
6020-J20C-C3

Why Choose TFL 6020/C3VL2071 Electrically Insulated Bearings?

TFL specializes in solutions for shaft-voltage damage caused by variable-frequency drives (VFDs). Our advanced plasma-spray technology ensures a dense, reliable insulating layer on the inner ring, effectively blocking stray currents and helping your equipment run smoother and last longer than when using standard bearings.
The picture shows an electrical insulated bearing 6020/C3VL2071. Its inner ring has an insulating coating and the cage is made of steel.

Features of 6020/C3VL2071

  • Uses the VL2071 specification (inner-ring insulation), ideal for applications where the outer ring rotates or the housing fit is tight.
  • High-density aluminium-oxide layer provides over 50 MΩ resistance at 1000V DC, offering strong protection against electrical discharge damage.
  • 100 mm bore × 150 mm OD × 24 mm width.
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Common Applications of Electrically Insulated Bearings

The 6020/C3VL2071 bearing features C3 internal clearance and a VL2071 insulated inner ring. It is commonly used in environments where stray currents may pass through the bearings, causing electrical pitting—such as VFD-driven systems or high-frequency electrical environments.
Inner ring electrically insulated bearing, used for variable frequency motors

VFD-Driven Motors

The 6020 series is widely used in the drive end (DE) and non-drive end (NDE) of electric motors, providing stable radial support and axial guidance while preventing current-induced bearing damage. In Siemens 1FW3 torque motors, this model is used on the NDE side of frame size SH 200 for both hollow-shaft and solid-shaft versions, ensuring radial support and electrical isolation under VFD operation.
Inner ring electrically insulated bearing, used for pump motors

Industrial Water Pumps

6020 bearings are often used to support pump rotors under high-speed operation, providing radial and axial load capacity while preventing electrical corrosion. In Sulzer’s OH-series vertical pumps, the 6020/C3VL2071 is applied on the NDE side to manage axial thrust and provide electrical insulation in high-pressure pumping systems used in the oil and gas sector.

Air Compressors

The 6020 bearing is commonly installed in main drive motors. The GA VSD+ series—known for its vertical design and energy-efficient VFD operation—uses high-speed iPM motors where a compact bearing (150 mm OD) is required. The insulated 6020/C3VL2071 protects the motor from high-frequency harmonic currents generated by the inverter.

*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 I replace a standard 6020 bearing with TFL 6020/C3VL2071?

Absolutely. It has identical dimensions (100×150×24 mm) and load ratings to a standard 6020 bearing. The VL2071 insulated inner ring provides added protection against stray currents and is a recommended upgrade for any VFD-driven motor.

What is the MOQ and lead time?

As a manufacturer and OEM supplier, TFL offers low MOQs suitable for small to medium production runs, with faster lead times than traditional major brands. Please contact us with your quantity, clearance, cage material, sealing requirements, and any customization needs for an accurate delivery schedule and quotation.
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About

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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