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Electrically Insulated Single Row Cylindrical Roller Bearings NU 328 ECM/C3VL2071

Electrically Insulated Single Row Cylindrical Roller Bearings NU 328 ECM/C3VL2071

This electrically insulated cylindrical roller bearing has a 140mm bore and 300mm outer diameter, standing 62mm wide with a sturdy 25.1kg weight. Its inner ring features a special 500µm insulation coating that prevents electrical damage.

The bearing supports substantial loads, handling 780kN dynamically and 830kN statically while maintaining smooth operation up to 2800 RPM. The machined brass cage provides reliable performance under demanding conditions.

With electrical resistance of at least 50MΩ and breakdown voltage from 1000 to 3000 VDC, it effectively protects against current passage. The C3 radial clearance accommodates thermal expansion during operation.

Ideal for electric motors, generators, and industrial machinery where electrical currents pose risks. Compliant with RoHS and REACH standards for safe industrial use across various applications.

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Product Parameters

  • Model NU 328 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 140 mm
  • Outside Diameter 300 mm
  • Width 62 mm
  • Net Weight 25.1 kg
  • Basic Dynamic Load Rating 780.0 kN
  • Basic Static Load Rating 830.0 kN
  • Reference Speed 2800.0r/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 328 ECM/C3VL2071 dimension drawing
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Features

How Is NU 328 ECM/C3VL2071 Bearing Engineered for Reliability?

NU 328 ECM/C3VL2071 Bearing features an insulating coating on its inner ring, preventing electrical damage from currents.
This coating provides a breakdown voltage between 1000 and 3000 VDC, ensuring protection in electrically active environments.
Its machined brass cage offers excellent durability and helps maintain proper roller alignment.
With a basic dynamic load rating of 780 kN, NU 328 ECM/C3VL2071 Bearing handles substantial radial loads reliably.

Application

How Does NU 328 ECM/C3VL2071 Bearing Support High-Speed Operations?
NU 328 ECM/C3VL2071 Bearing handles industrial machinery where electrical currents might cause damage, like in large motors or generators. Its insulation coating prevents electrical arcing, extending service life in demanding conditions.
In automotive electric drives, NU 328 ECM/C3VL2071 Bearing manages high radial loads while blocking stray currents. The brass cage maintains stability at reference speeds up to 2800 rpm, suitable for modern vehicle systems.
For medical imaging devices, NU 328 ECM/C3VL2071 Bearing’s electrical insulation ensures precision in sensitive environments. The C3 clearance accommodates thermal expansion during prolonged operation cycles.

Built for Heavy-Duty Use: NU 328 ECM/C3VL2071 Bearing
NU 328 ECM/C3VL2071 Bearing fits conveyor systems in mining or steel plants, where its 780 kN dynamic load rating supports continuous operation. The VL2071 coating resists electrical damage from variable frequency drives.
Automation equipment benefits from NU 328 ECM/C3VL2071 Bearing’s ability to run at high speeds without electrical interference. Its cylindrical roller design distributes loads evenly in robotic arms or assembly lines.
Household appliances like industrial washing machines use NU 328 ECM/C3VL2071 Bearing for its durability. The insulation protects against motor currents, while the metric dimensions suit standard European components.

Industrial Uses of NU 328 ECM/C3VL2071 Bearing
NU 328 ECM/C3VL2071 Bearing operates in pump systems where water exposure and electrical risks exist. The 500 µm insulation layer withstands voltages up to 3000 VDC, preventing bearing currents.
Wind turbine generators employ NU 328 ECM/C3VL2071 Bearing for its capacity to handle substantial radial forces. Brass cage construction reduces friction during high-speed rotation in renewable energy applications.
Printing machinery relies on NU 328 ECM/C3VL2071 Bearing for precise roller movements. Electrical resistance over 50MΩ ensures consistent performance in paper handling or digital printing equipment.

Q&A

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