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NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6214C3

NTN MEGAOHM Series Insulated Ball Bearings 7MC3-6214C3

The NTN MEGAOHM Series 7MC3-6214C3 is an insulated ball bearing with a 70mm bore and 125mm outer diameter, designed to handle electrical currents. Its outer ring features a ceramic coating, providing high insulation with a breakdown voltage over 3000V.

This bearing supports dynamic loads up to 66.0 kN and spins smoothly at speeds up to 10000 RPM. The sheet metal cage ensures durability, while the C3 radial clearance allows for thermal expansion.

The ceramic coating offers excellent electrical resistance, making it ideal for electric motors or generators where current leakage is a concern. It’s also RoHS compliant for safe use in various industries.

Weighing 1.05kg, it’s a robust choice for applications requiring both mechanical performance and electrical insulation. The 0.2mm coating thickness ensures reliable protection without compromising fit.

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Product Parameters

  • Model 7MC3-6214C3
  • Product Category NTN MEGAOHM Series Insulated Ball Bearings
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix 7MC3
  • Manufacturers NTN
  • Bore Diameter 70 mm
  • Outside Diameter 125 mm
  • Width 24 mm
  • Net Weight 1.05 kg
  • Basic Dynamic Load Rating 66.0 kN
  • Basic Static Load Rating 44.0 kN
  • Reference Speed 10000 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 7MC3-6214C3 dimension drawing
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Features

How Is 7MC3-6214C3 Bearing Engineered for Reliability?

7MC3-6214C3 Bearing features an outer ring ceramic coating, providing excellent insulation against electrical currents.
Its breakdown voltage exceeds 3000 V, making it ideal for applications with electrical interference.

The sheet metal cage ensures smooth operation, even at high speeds up to 10,000 r/min.
With a dynamic load rating of 66.0 kN, it handles heavy loads reliably.

7MC3-6214C3 Bearing’s C3 radial internal clearance allows for thermal expansion in demanding conditions.
The ceramic coating also resists wear, extending the bearing’s service life.

Its electrical resistance surpasses 2000 MΩ, preventing current passage and reducing damage risks.
This makes 7MC3-6214C3 Bearing a dependable choice for industrial applications.

Application

Industrial Uses of 7MC3-6214C3 Bearing
The 7MC3-6214C3 Bearing is commonly used in industrial motors and generators, where its ceramic coating prevents electrical arcing. This makes it ideal for environments with high voltage fluctuations.

In automotive applications, 7MC3-6214C3 Bearing is found in electric vehicle drivetrains, ensuring reliable performance under electrical loads. Its C3 clearance allows for thermal expansion in high-speed operations.

For medical imaging devices, 7MC3-6214C3 Bearing’s insulation properties reduce interference from electrical noise. The sheet metal cage provides stability in precision equipment.

Automation systems benefit from 7MC3-6214C3 Bearing’s ability to handle high speeds without electrical damage. Its robust design suits robotic arms and conveyor systems.

In household appliances like washing machines, 7MC3-6214C3 Bearing offers long-lasting performance with minimal maintenance. The ceramic coating extends its lifespan in humid conditions.

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