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Electrically Insulated Single Row Cylindrical Roller Bearings NU 228 ECM/C3VL2071

Electrically Insulated Single Row Cylindrical Roller Bearings NU 228 ECM/C3VL2071

This electrically insulated cylindrical roller bearing is a sturdy unit measuring 140mm by 250mm by 42mm, with a weight of 9kg. It is designed with a special coating on its inner ring for protection.

The bearing can manage dynamic loads up to 450 kN and operates effectively at speeds reaching 3200 rpm. Its C3 radial internal clearance accommodates thermal expansion during use.

A key feature is its electrical insulation, which prevents damage from stray currents. The machined brass cage contributes to its reliable performance in demanding conditions.

Suitable for electric motors or generators, it helps prevent electrical erosion. It meets RoHS and REACH standards, ensuring it is safe for various industrial applications.

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Product Parameters

  • Model NU 228 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 250 mm
  • Width 42 mm
  • Net Weight 9 kg
  • Basic Dynamic Load Rating 450.0 kN
  • Basic Static Load Rating 510.0 kN
  • Reference Speed 3200.0r/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 228 ECM/C3VL2071 dimension drawing
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Features

How Is NU 228 ECM/C3VL2071 Bearing Engineered for Reliability?

NU 228 ECM/C3VL2071 Bearing features an insulating coating on its inner ring, protecting against electrical currents.
This coating provides a breakdown voltage from 1000 to 3000 VDC, preventing electrical damage.

The machined brass cage maintains roller alignment, enhancing operational stability.
With a basic dynamic load rating of 450 kN, it handles substantial radial loads effectively.

NU 228 ECM/C3VL2071 Bearing operates in electrically hazardous environments, thanks to its high electrical resistance.
Its C3 radial internal clearance accommodates thermal expansion, ensuring consistent performance.

Designed for minimal maintenance, NU 228 ECM/C3VL2071 Bearing reduces long-term operational costs.
The robust construction supports a reference speed of 3200 r/min, balancing speed and durability.

Application

Common Applications of NU 228 ECM/C3VL2071 Bearing
NU 228 ECM/C3VL2071 Bearing works well in industrial equipment like large conveyor systems and heavy machinery.
Its electrical insulation helps prevent damage from stray currents, which is useful in motor-driven applications.
You’ll find NU 228 ECM/C3VL2071 Bearing in automotive electric motors, particularly in hybrid vehicle systems.
The brass cage and C3 clearance allow for thermal expansion during continuous operation.
For medical imaging devices, NU 228 ECM/C3VL2071 Bearing provides stable rotation in CT scanner gantries.
The insulation coating ensures electrical safety around sensitive electronic components.
In automation equipment, NU 228 ECM/C3VL2071 Bearing supports robotic arm joints where electrical isolation is needed.
Its cylindrical roller design handles both radial loads and moderate speeds effectively.

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