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6222/C3VL0241 Electrically Insulated Ball Bearings

6222/C3VL0241 Electrically Insulated Ball Bearings

insulated deep groove ball bearing 6222/C3VL0241, outer ring coating

Low MOQ 6222/C3VL0241 - Significantly Lowers Your Operating Costs

$ 386 /Each
  • Customized Logo: Min. Order 1 Piece
  • Customized Packaging: Min. Order 1 Piece
  • Inventory: In stock
  • Country of Origin: China
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Product Parameters

  • Model 6222/C3VL0241
  • Equivalent Interchange 6222/C3VL0241 (SKF); 6222-J20AA-C3 (FAG); 6222-M-C3-SQ77 (NKE); 6222HDY2C3(NSK); 7MC3-6222C3 (NTN);
  • Product Category Electrically Insulated Ball Bearings
  • Coating Suffix VL0241
  • Insulating Coating Types Insulation coating on outer ring
  • Manufacturers TFL
  • Bore Diameter 110.0 mm
  • Outside Diameter 200.0 mm
  • Width 38.0 mm
  • Net Weight 4.25kg
  • Basic Dynamic Load Rating 151.0 kN
  • Basic Static Load Rating 118.0 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 Sheet metal
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant

6222/C3VL0241 Equivalent Interchange Brands

TFL 6222/C3VL0241 is a 100% equivalent and direct replacement for large-size insulated bearings from SKF and FAG in terms of mechanical dimensions (110x200x38mm), standard pressed steel cage, C3 clearance, and VL0241 outer-ring physical properties. No modifications to existing industrial motors or pumps are required. All dispatched bearings pass strict voltage resistance testing (>1000V DC) and dimensional precision checks.

SKF FAG NKE NSK NTN
6222/C3VL0241
6222-J20AA-C3
6222-M-C3-SQ77
6222HDY2C3
7MC3-6222C3

Why Choose TFL?

TFL focuses on solving shaft current challenges in high-power AC drive systems. For large bearings with a 110mm bore, ensuring the uniformity and adhesion of a large-area ceramic coating is the core test. Through imported plasma spraying equipment and the ISO 9001 quality control system, TFL consistently produces high-quality large insulated bearings. We provide professional technical support and, amidst global supply chain fluctuations, help clients achieve significant cost savings and efficiency with our rapid stock delivery capabilities.

insulated bearing 6222-c3vl0241 with outer ring coated

Features of 6222/C3VL0241

Common Applications of Electrically Insulated Bearings

TFL 6222/C3VL0241 is widely applied in large VFD equipment under general industrial loads. Typical applications encompass large water transport pumps in water treatment plants, industrial centrifugal fans in chemical plants, large commercial HVAC compressors, and high-power AC motors in general manufacturing. Its standard steel cage structure is ideal for steady-state continuous operation, while the outer-ring insulation perfectly cuts off destructive electrical loops introduced by VFD systems.

The insulated ball bearings used in the motor

General High-Power Motors

In general high-power industrial VFD motors like the Siemens 1LE1 or ABB M3BP series, rotor shaft currents are the main culprit in reducing bearing life. TFL 6222/C3VL0241’s steel cage is lightweight and low-friction, perfectly suited for medium-high speed, continuous, smooth operation. Its outer-ring alumina insulation withstands 3000V, providing excellent long-cycle protection and serving as a highly cost-effective SKF alternative for motor MRO.

the image shows a water pump and an insulated deep groove ball bearing

Large Water Pumps

In municipal water supply and treatment plants using large VFD horizontal centrifugal pumps by Flowserve and Grundfos, equipment often requires uninterrupted operation for years. Using TFL 6222/C3VL0241 as the non-drive end (NDE) bearing, the C3 clearance fully adapts to the temperature rise during full-speed operation, while simultaneously cutting off electrical erosion leakage caused by inverter harmonics, drastically extending the pump sets' maintenance intervals.

the picture shows a big commercial hvac and two insulated bearings beside.

Commercial HVAC & Compressors

In large commercial HVAC or cold storage systems using screw/centrifugal compressors by Atlas Copco or Trane, the VFD-driven ends are susceptible to high-frequency PWM signal interference. TFL 6222/C3VL0241 provides stable support with its 110mm bore and 50–200 MΩ insulation resistance, effectively isolating high-frequency interference currents, ensuring the compressor is free from erosion damage, and improving the overall reliability of the energy system.

*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 this 6222/C3VL0241 model and the 6222M/C3VL0241 with an "M"? How should I choose?

The main difference is the cage material. This model (6222) uses a standard pressed steel cage, while the "M" model uses a machined solid brass cage. If your large motor operates continuously under regular, smooth loads, the 6222 (steel cage) offers lower friction and better cost-efficiency. However, if the equipment faces severe vibration or frequent heavy shock loads (e.g., crushers, rolling mills), the highly fatigue-resistant 6222M is recommended.

Can a large bearing with a 110mm bore like the 6222 be cold-pressed during installation?

Absolutely not. A 110mm bore constitutes a large bearing; cold-pressing requires immense tonnage and is highly likely to score the motor shaft or damage the bearing's internal structure. More importantly, mechanical striking or forceful pressing on the outer ring will shatter the alumina ceramic insulation layer. You must use an induction heater (set between 90°C and 110°C) for shrink-fitting.

Why does this standard insulated bearing also use a C3 large clearance?

Large VFD motors experience a significant temperature difference between the inner and outer rings during continuous operation. Additionally, the outer ring's ceramic coating minutely slows heat dissipation into the housing, making the bearing more prone to thermal expansion. Equipping it with a C3 clearance reserves enough space for this expansion, preventing the balls from being crushed at high temperatures. It is the industry-standard practice for ensuring operational safety.
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