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Electrically Insulated Single Row Cylindrical Roller Bearings NU 330 ECM/C3VL2071

Electrically Insulated Single Row Cylindrical Roller Bearings NU 330 ECM/C3VL2071

This electrically insulated cylindrical roller bearing is a sturdy unit measuring 150mm by 320mm by 65mm, with a machined brass cage for reliable operation.
It handles dynamic loads up to 900 kN and can run at reference speeds of 2600 revolutions per minute.
The special insulation coating on the inner ring protects against electrical currents, with a breakdown voltage from 1000 to 3000 VDC.
Suitable for electric motors or generators where electrical damage is a concern, it helps prevent fluting and extends service life.

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Product Parameters

  • Model NU 330 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 150 mm
  • Outside Diameter 320 mm
  • Width 65 mm
  • Net Weight 31.1 kg
  • Basic Dynamic Load Rating 900.0 kN
  • Basic Static Load Rating 965.0 kN
  • Reference Speed 2600.0r/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 330 ECM/C3VL2071 dimension drawing
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Features

How Is NU 330 ECM/C3VL2071 Bearing Engineered for Reliability?

NU 330 ECM/C3VL2071 Bearing features an insulation coating on its inner ring, protecting against electrical currents and preventing damage.
This coating provides a breakdown voltage from 1000 to 3000 VDC, ensuring safety in electrically active environments.
With a basic dynamic load rating of 900.0 kN, it handles heavy radial loads reliably in industrial settings.
The machined brass cage maintains roller alignment, reducing friction and extending operational life.

Application

How Does NU 330 ECM/C3VL2071 Bearing Support High-Speed Operations?
NU 330 ECM/C3VL2071 Bearing handles industrial machinery like large pumps and compressors, where its electrical insulation prevents current damage.
The C3 clearance allows for thermal expansion during continuous operation, maintaining stability in demanding environments.

In automotive electric motors, NU 330 ECM/C3VL2071 Bearing’s brass cage reduces friction, supporting smooth rotation at high speeds.
Its insulation coating protects against stray currents, extending service life in hybrid vehicle applications.

For automation equipment, NU 330 ECM/C3VL2071 Bearing fits robotic arms and conveyor drives, offering reliable performance.
The 500 µm insulation layer ensures electrical safety in variable frequency drive systems.

Medical imaging devices benefit from NU 330 ECM/C3VL2071 Bearing’s precise dimensions, which help maintain alignment in rotating components.
The high dynamic load rating makes it suitable for CT scanners requiring consistent motion.

Q&A

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