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Electrically Insulated Single Row Cylindrical Roller Bearings NU 211 ECM/C3VL0241

Electrically Insulated Single Row Cylindrical Roller Bearings NU 211 ECM/C3VL0241

This electrically insulated cylindrical roller bearing measures 55mm by 100mm by 21mm, featuring a durable insulation coating on its outer ring.
It handles dynamic loads up to 300 kN and operates smoothly at speeds reaching 5000 RPM.
The brass cage provides reliable performance, while the C3 internal clearance accommodates thermal expansion.
Suitable for electric motors or generators where electrical currents pose a risk, its insulation withstands voltages from 1000 to 3000 VDC.
Weighing 0.78kg, it meets RoHS and REACH standards for safe industrial use.

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Product Parameters

  • Model NU 211 ECM/C3VL0241
  • Product Category Electrically Insulated Single Row Cylindrical Roller Bearings
  • Insulating Coating Types Insulation coating on outer ring
  • Coating Suffix VL0241
  • Manufacturers TFL
  • Bore Diameter 55 mm
  • Outside Diameter 100 mm
  • Width 21 mm
  • Net Weight 0.78 kg
  • Basic Dynamic Load Rating 300.0 kN
  • Basic Static Load Rating 290.0 kN
  • Reference Speed 5000.0r/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 211 ECM/C3VL0241 dimension drawing
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Features

How Does NU 211 ECM/C3VL0241 Bearing Prevent Electrical Damage?

NU 211 ECM/C3VL0241 Bearing features an outer ring insulation coating that withstands up to 3000 VDC, protecting against electrical currents.
This coating provides a minimum electrical resistance of 50MΩ, effectively preventing electrical erosion in motor applications.
The machined brass cage maintains roller alignment under heavy radial loads, supporting smooth operation.
With a C3 radial clearance, it accommodates thermal expansion during high-speed operation up to 5000 rpm.

Application

How Does NU 211 ECM/C3VL0241 Bearing Improve Performance?
NU 211 ECM/C3VL0241 Bearing works well in industrial equipment like large motors and conveyor drives, where its electrical insulation prevents damage from stray currents.
The cylindrical roller design handles heavy radial loads smoothly, making it reliable for continuous operation in manufacturing plants.

In automotive electric motors, NU 211 ECM/C3VL0241 Bearing supports components that need protection against electrical pitting, such as alternators and traction drives.
Its brass cage and C3 clearance help manage thermal expansion, maintaining stable performance in vehicle applications.

For medical imaging devices, NU 211 ECM/C3VL0241 Bearing’s insulation coating ensures safe operation by blocking electrical interference in sensitive equipment.
The high dynamic load rating allows it to run quietly in MRI machines or CT scanners, where precision is key.

In automation systems, NU 211 ECM/C3LV0241 Bearing fits into robotic arms and assembly lines, offering durability under frequent start-stop cycles.
The breakdown voltage up to 3000 VDC makes it suitable for areas with variable power sources, reducing maintenance needs.

Around the home, NU 211 ECM/C3VL0241 Bearing can be used in power tools and large appliances, where its insulation resists electrical wear from motor surges.
The metric dimensions align with standard parts, making replacements straightforward for DIY enthusiasts.

Q&A

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