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FAG Current-Insulated Single Row Cylindrical Roller Bearing NU238-E-M1-J20AA-C3

FAG Current-Insulated Single Row Cylindrical Roller Bearing NU238-E-M1-J20AA-C3

The FAG NU238-E-M1-J20AA-C3 is a current-insulated cylindrical roller bearing with a 190mm bore and 340mm outer diameter, designed to handle heavy loads. Its ceramic-coated outer ring provides electrical insulation, preventing damage from stray currents.

With a dynamic load rating of 680 kN and a static load rating of 930 kN, it’s built for demanding applications. The brass cage ensures smooth operation at speeds up to 1720 rpm.

The bearing features a C3 radial clearance, offering flexibility in high-temperature environments. Its insulating layer can withstand up to 1000V, making it ideal for electric motors or generators.

Weighing 22.8 kg, it’s robust yet manageable for industrial use. Compliant with RoHS and REACH standards, it’s a reliable choice for machinery requiring electrical insulation.

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Product Parameters

  • Model NU238-E-M1-J20AA-C3
  • Product Category Current-Insulated Cylindrical Roller Bearing Single Row
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix J20AA
  • Manufacturers FAG
  • Bore Diameter 190.0 mm
  • Outside Diameter 340.0 mm
  • Width 55.0 mm
  • Net Weight 22.8 kg
  • Basic Dynamic Load Rating 680 kN
  • Basic Static Load Rating 930 kN
  • Reference Speed 1720r/min
  • Breakdown Voltage (DC) ≤1000v
  • Layer Thic kNess 200 um
  • Electrical Resistance 50MΩ (Dry); 10MΩ (Damp)
  • Cage Material M - Brass Cage
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
FAG Current-Insulated Single Row Cylindrical Roller Bearing NU238-E-M1-J20AA-C3 dimension drawing
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Features

How Is NU238-E-M1-J20AA-C3 Bearing Engineered for Reliability?

NU238-E-M1-J20AA-C3 Bearing features an outer ring ceramic coating, providing excellent current insulation.
This design prevents electrical damage, making it ideal for applications with stray currents.

The brass cage ensures smooth operation and reduces friction under heavy loads.
With a basic dynamic load rating of 680 kN, it handles demanding industrial conditions.

NU238-E-M1-J20AA-C3 Bearing’s C3 radial clearance allows for thermal expansion in high-speed applications.
Its reference speed of 1720r/min ensures reliable performance in various settings.

The coating offers high electrical resistance, even in damp conditions.
This makes NU238-E-M1-J20AA-C3 Bearing a durable choice for challenging environments.

Application

Industrial Uses of NU238-E-M1-J20AA-C3 Bearing
NU238-E-M1-J20AA-C3 Bearing is commonly used in electric motors and generators, where its current-insulating properties prevent electrical damage. The brass cage ensures smooth operation even under high radial loads.

What Makes NU238-E-M1-J20AA-C3 Bearing a Preferred Choice?
In wind turbines, NU238-E-M1-J20AA-C3 Bearing handles heavy loads while its ceramic coating protects against electrical currents. Its C3 clearance allows for thermal expansion in demanding conditions.

Built for Heavy-Duty Use: NU238-E-M1-J20AA-C3 Bearing
NU238-E-M1-J20AA-C3 Bearing excels in industrial gearboxes, where its high dynamic load rating ensures long service life. The damp-resistant insulation makes it reliable in humid environments.

Automotive vs Aerospace: Applications of NU238-E-M1-J20AA-C3 Bearing
NU238-E-M1-J20AA-C3 Bearing is found in hybrid vehicle drivetrains, where insulation prevents current leakage. In aerospace, its precision suits auxiliary power units without electrical interference.

Q&A

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