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The NTN MEGAOHM Series 7MC3-6317C3 is an insulated ball bearing with dimensions of 85mm by 180mm by 41mm, featuring a ceramic-coated outer ring. It offers a high breakdown voltage of over 3000V and electrical resistance exceeding 2000 MΩ, making it ideal for electric motor applications.
With a dynamic load rating of 87.1 kN and a static load rating of 64.0 kN, this bearing handles heavy loads efficiently. Its reference speed of 9000 r/min ensures smooth operation in high-speed environments.
The sheet metal cage and C3 radial internal clearance provide durability and reliable performance. Weighing 4.2kg, it’s robust yet manageable for industrial use.
Compliant with ROHS standards, this bearing is perfect for preventing electrical erosion in machinery, especially in environments with high electrical currents.
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How Is 7MC3-6317C3 Bearing Engineered for Reliability?
7MC3-6317C3 Bearing features an outer ring ceramic coating, providing excellent insulation with a breakdown voltage exceeding 3000 V.
This design ensures reliable performance in electrically demanding environments, preventing current leakage.
The sheet metal cage maintains ball alignment, contributing to smooth operation even at high speeds.
With a basic dynamic load rating of 87.1 kN, it handles heavy loads efficiently while maintaining electrical resistance over 2000 MΩ.
Industrial Uses of 7MC3-6317C3 Bearing
7MC3-6317C3 Bearing is commonly used in industrial motors and generators, where its ceramic-coated outer ring prevents electrical arcing. This makes it ideal for environments with variable frequency drives or high electrical currents.
The bearing’s C3 radial clearance allows for thermal expansion in heavy machinery, ensuring stable performance under load. Its sheet metal cage provides durability in high-speed applications up to 9000 r/min.
In wind turbine systems, 7MC3-6317C3 Bearing’s insulation properties protect against stray currents, extending equipment life. The 180 mm outer diameter offers robust support for large rotating components.
For railway traction motors, this bearing’s breakdown voltage of over 3000 V ensures reliable operation. The 41 mm width provides a compact yet sturdy solution for space-constrained designs.
What Makes 7MC3-6317C3 Bearing a Preferred Choice?
7MC3-6317C3 Bearing is favoured in electric vehicle drivetrains due to its resistance to electrical pitting. The 85 mm bore diameter fits standard motor shafts seamlessly.
Its dynamic load rating of 87.1 kN handles demanding conditions in industrial pumps. The ceramic coating maintains performance even in humid or corrosive environments.
Built for Heavy-Duty Use: 7MC3-6317C3 Bearing
7MC3-6317C3 Bearing excels in steel mill equipment, where its insulation withstands extreme temperatures. The 4.2 kg weight balances strength without excessive bulk.
In mining machinery, the bearing’s static load capacity of 64.0 kN supports heavy rotational forces. The >2000 MΩ electrical resistance prevents current leakage in critical applications.
Automotive vs Aerospace: Applications of 7MC3-6317C3 Bearing
In automotive hybrids, 7MC3-6317C3 Bearing prevents motor damage from regenerative braking currents. The 0.2 mm coating thickness ensures consistent insulation over time.
For aerospace ground power units, the bearing’s reference speed suits high-RPM demands. Its ROHS compliance meets strict environmental regulations across industries.
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