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FAG Current-Insulated Single Row Cylindrical Roller Bearing NU326-E-XL-MPAX-H257A-J20AA-C4

FAG Current-Insulated Single Row Cylindrical Roller Bearing NU326-E-XL-MPAX-H257A-J20AA-C4

The FAG NU326-E-XL-MPAX-H257A-J20AA-C4 is a current-insulated cylindrical roller bearing with a 130mm bore and 280mm outer diameter, designed to handle heavy loads up to 720 kN. Its ceramic-coated outer ring prevents electrical currents from damaging the bearing, making it ideal for electric motors.

The brass cage ensures smooth operation at speeds up to 2340 RPM, while the C4 radial clearance allows for thermal expansion. The coating provides high electrical resistance, even in damp conditions.

This bearing is suitable for applications where electrical insulation is crucial, such as wind turbines or industrial generators. It’s compliant with RoHS and REACH standards, ensuring safe and environmentally friendly use.

Weighing 17.92 kg, it’s a robust choice for demanding environments. The design balances durability and performance, making it a reliable option for heavy machinery.

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Product Parameters

  • Model NU326-E-XL-MPAX-H257A-J20AA-C4
  • Product Category Current-Insulated Cylindrical Roller Bearing Single Row
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix J20AA
  • Manufacturers FAG
  • Bore Diameter 130.0 mm
  • Outside Diameter 280.0 mm
  • Width 58.0 mm
  • Net Weight 17.92 kg
  • Basic Dynamic Load Rating 720 kN
  • Basic Static Load Rating 720 kN
  • Reference Speed 2340r/min
  • Breakdown Voltage (DC) ≤1000v
  • Layer Thic kNess 200 um
  • Electrical Resistance 50MΩ (Dry); 10MΩ (Damp)
  • Cage Material M - Brass Cage
  • Radial Internal Clearance C4
  • ROHS Compliant
  • REACH Compliant
FAG Current-Insulated Single Row Cylindrical Roller Bearing NU326-E-XL-MPAX-H257A-J20AA-C4 dimension drawing
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Features

How Is NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing Engineered for Reliability?

NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing features an outer ring ceramic coating, providing excellent current insulation.
This design ensures reliable operation in electrically charged environments, preventing damage from stray currents.

The brass cage maintains proper roller alignment, reducing friction and wear during high-speed rotation.
With a basic dynamic load rating of 720 kN, it handles heavy radial loads with ease.

NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing’s C4 radial internal clearance allows for thermal expansion in demanding conditions.
Its reference speed of 2340r/min ensures efficient performance in various industrial applications.

The coating offers high electrical resistance, with 50MΩ when dry and 10MΩ in damp conditions.
This makes NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing suitable for diverse operational environments.

Application

Industrial Uses of NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing
NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing is commonly used in electric motors and generators, where its current-insulating properties prevent electrical arcing. The brass cage ensures smooth operation even under high radial loads.

In wind turbine applications, NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing handles the variable loads and vibrations typical in such environments. Its ceramic coating provides reliable insulation against stray currents, extending service life.

For industrial gearboxes, NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing offers excellent load capacity and speed performance. The C4 clearance allows for thermal expansion, making it suitable for high-temperature operations.

In railway traction systems, NU326-E-XL-MPAX-H257A-J20AA-C4 Bearing’s robust design withstands heavy loads and harsh conditions. The insulating coating protects against electrical damage, ensuring consistent performance.

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