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NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6220C3

NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6220C3

The NTN MEGAOHM Series 7MC3-6220C3 is an insulated ball bearing with a 100mm bore and 180mm outer diameter, designed to prevent electrical current damage. Its outer ring features a ceramic coating, providing high electrical resistance over 2000 MΩ.

With a dynamic load rating of 127 kN, it handles heavy loads while maintaining smooth operation at speeds up to 7500 RPM. The C3 radial clearance offers flexibility in high-temperature or high-speed applications.

The ceramic insulation can withstand voltages over 3000V, making it ideal for electric motors or generators. Its sheet metal cage ensures durability in demanding conditions.

Weighing 2.974kg, this RoHS-compliant bearing suits industrial machinery where electrical insulation is crucial, such as wind turbines or railway systems.

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Product Parameters

  • Model 7MC3-6220C3
  • Product Category NTN MEGAOHM Series Insulated Ball Bearings
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix 7MC3
  • Manufacturers NTN
  • Bore Diameter 100 mm
  • Outside Diameter 180 mm
  • Width 34 mm
  • Net Weight 2.974 kg
  • Basic Dynamic Load Rating 127.0 kN
  • Basic Static Load Rating 93.0 kN
  • Reference Speed 7500.0 r/min
  • Breakdown Voltage (DC) ＞3000 V
  • Layer Thickness 0.2 mm
  • Electrical Resistance ＞2000 MΩ
  • Cage Material Sheet metal
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6220C3 dimension drawing
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Features

Performance Features of 7MC3-6220C3 Bearing

7MC3-6220C3 Bearing features an outer ring ceramic coating, providing excellent electrical insulation.
This design prevents electrical arcing, making it ideal for applications with high voltage risks.

The sheet metal cage ensures smooth operation, even at high speeds up to 7,500 r/min.
With a dynamic load rating of 127.0 kN, it handles heavy loads reliably.

7MC3-6220C3 Bearing’s insulating coating has a breakdown voltage exceeding 3,000 V.
Its electrical resistance is over 2,000 MΩ, ensuring safety in electrically sensitive environments.

The C3 radial internal clearance allows for thermal expansion, maintaining performance under varying temperatures.
This makes 7MC3-6220C3 Bearing suitable for demanding industrial applications.

Application

Industrial Uses of 7MC3-6220C3 Bearing
7MC3-6220C3 Bearing is commonly used in electric motors and generators, where its ceramic coating prevents electrical arcing and extends service life. The C3 clearance ensures reliable performance even under varying thermal conditions.

What Makes 7MC3-6220C3 Bearing a Preferred Choice?
With a breakdown voltage exceeding 3000V, 7MC3-6220C3 Bearing is ideal for high-voltage environments like wind turbines and industrial drives. Its sheet metal cage offers durability while maintaining smooth rotation at speeds up to 7500 r/min.

Perfect Fit for Automation: 7MC3-6220C3 Bearing
In robotic systems, 7MC3-6220C3 Bearing’s insulated design prevents current leakage, ensuring precise movement in sensitive applications. The 180mm outer diameter provides stability for heavy-duty robotic arms.

Medical vs Industrial: Where 7MC3-6220C3 Bearing Excels
While 7MC3-6220C3 Bearing handles industrial voltage spikes effortlessly, it’s also suitable for medical imaging equipment requiring electrical isolation. The 34mm width balances space constraints with load capacity.

How Does 7MC3-6220C3 Bearing Improve Performance?
The ceramic-coated outer ring reduces downtime in conveyor systems by eliminating electrical pitting. At 2.974kg, it’s lightweight enough for portable equipment yet robust for continuous operation.

Q&A

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