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6216M/C3VL0241 Electrically Insulated Ball Bearings

6216M/C3VL0241 Electrically Insulated Ball Bearings

The picture shows the 6216M/C3VL0241 bearing of the external insulation bearing brass retainer.
The picture shows the 6216M/C3VL0241 bearing of the external insulation bearing brass retainer.
Brass cage electrically insulated bearing for harsh industrial environments.
Brass cage electrically insulated bearing for harsh industrial environments.
Brass cage electrically insulated bearing for harsh industrial environments.
Brass cage electrically insulated bearing for harsh industrial environments.

Cost-Saving Insulated Solution | TFL 6216M/C3VL0241 for VFD-Driven Motors

  • Electrical Isolation: Outer ring ceramic coating can withstand up to ~3000 V to block shaft currents.
  • High Load Capacity: Basic dynamic load rating of 72.8 kN for demanding industrial applications.
  • Durable Structure: Brass cage ensures long-lasting performance and reduced friction.
  • Flexible Supply Chain Support: Supports flexible MOQs and rapid logistics to ensure timely project progression.
$ 1875 /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 6216M/C3VL0241
  • Equivalent Interchange 6216M/C3VL0241(SKF), 6216-M-J20AA-C3(FAG), 6216-M-C4-SQ77(NKE), 6216HDY2C3(NSK), 7MC3-6216C3(NTN)
  • Product Category Electrically Insulated Ball Bearings
  • Coating Suffix VL0241
  • Insulating Coating Types Insulation coating on outer ring
  • Manufacturers TFL
  • Bore Diameter 80.0 mm
  • Outside Diameter 140.0 mm
  • Width 26.0 mm
  • Net Weight 1.71 kg
  • Basic Dynamic Load Rating 72.8 kN
  • Basic Static Load Rating 55.0 kN
  • Reference Speed 9500.0 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
6216M/C3VL0241 Electrically Insulated Ball Bearings Drawing.dwg
Download DWG Download PDF

6216M/C3VL0241 Equivalent Interchange Brands

TFL’s 6216M/C3VL0241 provides seamless interchangeability with leading brands like SKF, NTN, FAG, NKE, and NSK, matching or exceeding their quality standards while offering significantly lower prices, more flexible minimum order quantities (MOQ), expedited global shipping, and customizable features to suit specific B2B requirements in electric motors and heavy machinery.

 

TFL SKF FAG NTN NKE NSK
6216M/C3VL0241
6216M/C3VL0241
6216-M-J20AA-C3
7MC3-6216C3
6216-M-C3-SQ77
6216HDY2C3

Why Choose TFL 6216M/C3VL0241 Electrically Insulated Bearings?

Opt for TFL’s 6216M/C3VL0241 for its proven electrical insulation up to 1000V, which safeguards against current-induced damage, combined with cost savings through direct manufacturing, faster lead times, and high compatibility.
The picture shows the 6216M/C3VL0241 bearing of the external insulation bearing brass retainer.

Features of 6216M/C3VL0241

  • Advanced Insulation Coating: The outer ring ceramic layer withstands 1000–3000 V DC.
  • Brass Cage Design: Enhances heat dissipation and supports higher speeds.
  • C3 Clearance: Provides optimal internal play for thermal expansion in variable conditions.
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Common Applications of Electrically Insulated Bearings

The 6216M/C3VL0241 is an SKF INSOCOAT-alternative deep groove ball bearing with a brass cage, commonly used in applications requiring electrical insulation to prevent bearing currents, such as in variable frequency drive (VFD) systems, where it extends bearing life by up to three times in harsh electrical environments like motors, pumps, and generators.
The picture shows the Electrically Insulated Bearings used in the ABB series motors.

Motor Applications

Electric motors utilize electrically insulated bearings to isolate stray currents from VFDs, reducing wear and preventing lubricant degradation. For instance, the 6216M/C3VL0241 is used in ABB’s Process Performance Motors (e.g., M3BP series, frame sizes 160-355) at both drive end (DE) and non-drive end (NDE) for powers above 90kW, enhancing reliability in industrial automation.
The picture shows the use of Electrically Insulated Bearings in the Grundfos series of water pumps.

Industrial Pumps

In large or medium-sized pumps, electrically insulated bearings or hybrid bearings with ceramic rolling elements are employed to prevent electric current from passing through the bearing, thereby avoiding premature failure. For instance, the ball bearing 6216C3 is listed as Grundfos Pump Repair Part (Spare) No. 98360395. Utilizing the 6216M/C3VL0241 protects the pump bearings from electrical erosion caused by stray currents conducted from the motor.

The picture shows the use of Electrically Insulated Bearings in the traction motors of the DJ4 electric locomotives series.

Train Traction Motors

The 6216 bearing is applied at the locating end of the traction motors in DJ4 electric locomotives. The VL0241 aluminum oxide insulating coating effectively interrupts the shaft current circuit caused by the high-frequency switching of the frequency converter. Meanwhile, the machined brass cage, combined with the deep groove ball structure, provides critical axial guidance and vibration-resistant support for the motor rotor, ensuring millions of kilometers of maintenance-free operation under heavy-haul conditions.

*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 does "M" in TFL 6216M/C3VL0241 stand for, and how does it differ from non-M models?

The "M" in TFL 6216M/C3VL0241 indicates that the bearing uses a machined brass cage. Compared to non-M models (which typically use pressed steel cages), brass cages offer higher strength, better wear resistance, and superior thermal stability in applications with higher speeds, temperatures, vibrations, or shock loads, thus providing longer service life and higher reliability.

Besides 6216M/C3VL0241, does TFL offer other 6216 series electrically insulated bearings?

Yes, TFL offers a complete range of 6216 series electrically insulated bearings, including 6216/C3VL0241 (standard cage, C3 clearance), 6216/C4VL0241 (standard cage, C4 clearance), and 6216M/C4VL0241 (brass cage, C4 clearance). These different models are designed to meet your specific needs for clearance and cage material, ensuring you find the most suitable product for your application.

Why use an insulated bearing instead of a grounding brush?

TFL Insulated bearings offer a "fit and forget" solution: unlike grounding brushes, they don’t wear out, don’t need regular maintenance, and eliminate a point of failure — thus lowering total cost of ownership.
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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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