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NKE Electrically Insulated Single Row Cylindrical Roller Bearing NU320-E-M6-SQ77

NKE Electrically Insulated Single Row Cylindrical Roller Bearing NU320-E-M6-SQ77

The NU320-E-M6-SQ77 is an electrically insulated cylindrical roller bearing with a 100mm bore and 215mm outer diameter, designed to prevent electrical currents from damaging machinery. Its robust construction handles dynamic loads up to 450 kN and spins efficiently at speeds up to 3200 RPM.

The outer ring features a special SQ77 insulation coating, providing a breakdown voltage of 1000-3000V and high electrical resistance over 2000 MΩ. The brass cage ensures smooth operation and durability under heavy loads.

This bearing is ideal for electric motors or generators where electrical insulation is crucial. With normal radial clearance, it offers reliable performance in demanding industrial environments.

Compliant with RoHS and REACH standards, it weighs 7.7kg, balancing strength and practicality for long-term use.

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Product Parameters

  • Model NU320-E-M6-SQ77
  • Product Category Electrically Insulated Single Row Cylindrical Roller Bearing
  • Insulating Coating Types Insulation coating on outer ring
  • Coating Suffix SQ77
  • Manufacturers NKE
  • Bore Diameter 100.0 mm
  • Outside Diameter 215.0 mm
  • Width 47.0 mm
  • Net Weight 7.7 kg
  • Basic Dynamic Load Rating 450 kN
  • Basic Static Load Rating 440 kN
  • Reference Speed 3200 r/min
  • Breakdown Voltage (DC) 1000 ~3000 V
  • Layer Thickness > 0.125 mm
  • Electrical Resistance > 2,000 MΩ
  • Cage Material Brass cage
  • Radial Internal Clearance Normal Clearance (Cn)
  • ROHS Compliant
  • REACH Compliant
NKE Electrically Insulated Single Row Cylindrical Roller Bearing NU320-E-M6-SQ77 dimension drawing
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Features

Why Choose NU320-E-M6-SQ77 Bearing for Precision Tasks?

NU320-E-M6-SQ77 Bearing features an electrically insulated outer ring coating, preventing electrical arcing and damage.
The brass cage ensures smooth operation and reduces friction, even at high speeds up to 3,200 r/min.
With a basic dynamic load rating of 450 kN, it handles heavy radial loads reliably.
Its insulation coating provides a breakdown voltage of 1,000 to 3,000 V, making it ideal for electric motor applications.

Application

Industrial Uses of NU320-E-M6-SQ77 Bearing
NU320-E-M6-SQ77 Bearing is commonly used in electric motors and generators, where its electrically insulated coating prevents current passage, reducing damage from stray currents. The brass cage ensures smooth operation even under high rotational speeds.

Where Is NU320-E-M6-SQ77 Bearing Used?
In wind turbines, NU320-E-M6-SQ77 Bearing handles heavy radial loads while its insulation protects against electrical erosion. Its robust design makes it suitable for harsh outdoor conditions.

Perfect Fit for Automation: NU320-E-M6-SQ77 Bearing
NU320-E-M6-SQ77 Bearing works well in robotic arms, providing reliable performance with minimal maintenance. The normal radial clearance ensures consistent operation in precision applications.

Medical vs Industrial: Where NU320-E-M6-SQ77 Bearing Excels
NU320-E-M6-SQ77 Bearing is ideal for industrial machinery like pumps, where electrical insulation is crucial. In medical imaging devices, its quiet operation and durability are equally beneficial.

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