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Electrically Insulated Single Row Cylindrical Roller Bearings NU 226 ECM/C3VL2071

Electrically Insulated Single Row Cylindrical Roller Bearings NU 226 ECM/C3VL2071

This electrically insulated cylindrical roller bearing measures 130mm by 230mm by 40mm, with a robust design weighing 7.62kg. It handles dynamic loads up to 415kN and static loads to 455kN, supporting rapid rotation up to 3400 RPM.
Its inner ring features a specialised insulating coating that prevents electrical damage, rated for 1000 to 3000 VDC with minimum resistance of 50MΩ. The machined brass cage offers reliable guidance while C3 radial clearance accommodates thermal expansion.
The insulation protects against electric currents that can cause premature failure in motors or generators. Suitable for industrial machinery where electrical insulation is necessary, including electric motors or wind turbine generators.
Compliant with RoHS and REACH standards, it provides dependable performance in demanding electrical environments.

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Product Parameters

  • Model NU 226 ECM/C3VL2071
  • Product Category Electrically Insulated Single Row Cylindrical Roller Bearings
  • Insulating Coating Types Insulation coating on inner ring
  • Coating Suffix VL2071
  • Manufacturers TFL
  • Bore Diameter 130 mm
  • Outside Diameter 230 mm
  • Width 40 mm
  • Net Weight 7.62 kg
  • Basic Dynamic Load Rating 415.0 kN
  • Basic Static Load Rating 455.0 kN
  • Reference Speed 3400.0r/min
  • Breakdown Voltage (DC) 1000 VDC to 3000 VDC
  • Layer Thic kNess 500 µm
  • Electrical Resistance Min. 50MΩ
  • Cage Material Machined brass
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
Electrically Insulated Single Row Cylindrical Roller Bearings NU 226 ECM/C3VL2071 dimension drawing
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Features

How Is NU 226 ECM/C3VL2071 Bearing Engineered for Reliability?

NU 226 ECM/C3VL2071 Bearing features an insulation coating on its inner ring, providing protection against electrical currents.
This coating offers a breakdown voltage ranging from 1000 to 3000 VDC, ensuring safe operation in electrically hazardous environments.
With a basic dynamic load rating of 415 kN, it handles heavy radial loads effectively.
The machined brass cage maintains roller alignment, contributing to smooth and reliable performance.

Application

Essential Roles of NU 226 ECM/C3VL2071 Bearing
NU 226 ECM/C3VL2071 Bearing is commonly used in industrial equipment like large motors and pumps, where its electrical insulation prevents damage from stray currents. The C3 clearance accommodates thermal expansion in demanding operations.

In automotive electric drives, NU 226 ECM/C3VL2071 Bearing supports high-speed rotors while its VL2071 coating protects against electrical erosion. This makes it suitable for hybrid vehicle systems requiring reliable performance.

For medical imaging devices, the bearing’s brass cage and consistent insulation ensure smooth operation in sensitive equipment. Its 1000-3000 VDC breakdown voltage rating provides safety in diagnostic machinery environments.

Within automation systems, NU 226 ECM/C3VL2071 Bearing maintains precision in robotic arms and conveyor drives. The 415 kN dynamic load capacity handles both radial and moderate axial loads effectively.

Q&A

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