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FAG Current-Insulated Single Row Cylindrical Roller Bearing NU310-E-XL-M1-J20B-C4

FAG Current-Insulated Single Row Cylindrical Roller Bearing NU310-E-XL-M1-J20B-C4

The FAG NU310-E-XL-M1-J20B-C4 is a current-insulated cylindrical roller bearing with a 50mm bore and 110mm outer diameter, designed to prevent electrical damage. Its outer ring features a ceramic coating (J20B) that resists up to 500V, making it ideal for electric motors or generators.

With a dynamic load rating of 131kN and a static load rating of 114kN, it handles heavy radial loads smoothly. The brass cage ensures durability, while the C4 radial clearance allows for thermal expansion in high-speed applications (up to 6000r/min).

The insulating coating maintains high electrical resistance (50MΩ dry, 10MΩ damp), protecting against stray currents. Its compact 27mm width and 1.29kg weight make it easy to integrate into existing systems.

Compliant with RoHS and REACH standards, this bearing is a reliable choice for industries like wind energy or rail transport where electrical insulation is critical.

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Product Parameters

  • Model NU310-E-XL-M1-J20B-C4
  • Product Category Current-Insulated Cylindrical Roller Bearing Single Row
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix J20B
  • Manufacturers FAG
  • Bore Diameter 50.0 mm
  • Outside Diameter 110.0 mm
  • Width 27.0 mm
  • Net Weight 1.29 kg
  • Basic Dynamic Load Rating 131 kN
  • Basic Static Load Rating 114 kN
  • Reference Speed 6000r/min
  • Breakdown Voltage (DC) ≤500v
  • Layer Thic kNess ≤100 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 NU310-E-XL-M1-J20B-C4 dimension drawing
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Features

Performance Features of NU310-E-XL-M1-J20B-C4 Bearing

NU310-E-XL-M1-J20B-C4 Bearing features an outer ring ceramic coating, providing excellent electrical insulation.
This design prevents current passage, reducing the risk of damage in electrically active environments.

The brass cage ensures stability and durability, even at high speeds up to 6,000 rpm.
With a dynamic load rating of 131 kN, it handles heavy radial loads efficiently.

NU310-E-XL-M1-J20B-C4 Bearing’s C4 radial internal clearance allows for thermal expansion in demanding conditions.
Its breakdown voltage of ≤500V makes it suitable for various industrial applications.

The bearing’s electrical resistance remains high, with 50MΩ when dry and 10MΩ in damp conditions.
This ensures reliable performance in different environmental settings.

Application

Industrial Uses of NU310-E-XL-M1-J20B-C4 Bearing
NU310-E-XL-M1-J20B-C4 Bearing is commonly used in electric motors and generators, where its current-insulating coating prevents electrical damage. The brass cage ensures smooth operation even at high speeds, making it reliable for continuous use.

Where Is NU310-E-XL-M1-J20B-C4 Bearing Used?
In wind turbines, NU310-E-XL-M1-J20B-C4 Bearing handles heavy radial loads while its ceramic coating protects against stray currents. The C4 clearance allows for thermal expansion, ideal for fluctuating temperatures.

Built for Heavy-Duty Use: NU310-E-XL-M1-J20B-C4 Bearing
NU310-E-XL-M1-J20B-C4 Bearing excels in industrial gearboxes, where its high dynamic load rating ensures longevity. The dry and damp resistance ratings make it suitable for varied environments.

Automotive vs Aerospace: Applications of NU310-E-XL-M1-J20B-C4 Bearing
In automotive applications, NU310-E-XL-M1-J20B-C4 Bearing supports alternators and starters, while in aerospace, it’s used in auxiliary power units. Its lightweight design doesn’t compromise strength.

Perfect Fit for Automation: NU310-E-XL-M1-J20B-C4 Bearing
NU310-E-XL-M1-J20B-C4 Bearing is a go-to for robotic arms, offering precision and insulation in one package. The 6000r/min speed rating keeps up with fast-paced production lines.

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