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FAG Current-Insulated Bearings 6218-J20AB-C3

FAG Current-Insulated Bearings 6218-J20AB-C3

The FAG 6218-J20AB-C3 is a current-insulated bearing with a 90mm bore and 160mm outer diameter, designed to prevent electrical damage. Its outer ring features a ceramic coating, providing insulation up to 500V DC.

This bearing handles dynamic loads up to 102kN and spins smoothly at speeds up to 6300 RPM. The sheet metal cage ensures durability, while the C3 radial clearance allows for thermal expansion.

The ceramic coating offers high electrical resistance, even in damp conditions (10MΩ). This makes it ideal for electric motors or generators where stray currents are a concern.

Weighing 2.23kg, it’s a robust solution for industrial applications. Compliant with RoHS and REACH standards, it’s both safe and reliable for long-term use.

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Product Parameters

  • Model 6218-J20AB-C3
  • Product Category Current-Insulated Bearings
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix J20AB
  • Manufacturers FAG
  • Bore Diameter 90.0 mm
  • Outside Diameter 160.0 mm
  • Width 30.0 mm
  • Net Weight 2.23 kg
  • Basic Dynamic Load Rating 102.0 kN
  • Basic Static Load Rating 74.0 kN
  • Reference Speed 6300 r/min
  • Breakdown Voltage (DC) ≤500 V
  • Layer Thickness 100 µm
  • Electrical Resistance 50MΩ (Dry); 10MΩ (Damp)
  • Cage Material Sheet metal
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
FAG Current-Insulated Bearings 6218-J20AB-C3 dimension drawing
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Features

How Is 6218-J20AB-C3 Bearing Engineered for Reliability?

6218-J20AB-C3 Bearing features an outer ring ceramic coating, providing excellent electrical insulation.

The coating ensures a breakdown voltage of up to 500 V, making it suitable for applications with electrical currents.

With a dynamic load rating of 102.0 kN, it handles heavy loads while maintaining smooth operation.

The C3 radial internal clearance allows for thermal expansion, ensuring reliability in varying temperatures.

Application

Industrial Uses of 6218-J20AB-C3 Bearing
The 6218-J20AB-C3 Bearing is commonly used in electric motors and generators, where its current-insulating coating prevents electrical damage. Its ceramic outer ring coating ensures reliable performance in environments with stray currents.

How Does 6218-J20AB-C3 Bearing Improve Performance?
In wind turbines, 6218-J20AB-C3 Bearing reduces downtime by protecting against electrical erosion. The C3 clearance allows for better thermal expansion handling in high-speed applications.

Built for Heavy-Duty Use: 6218-J20AB-C3 Bearing
This bearing excels in industrial pumps, where its sheet metal cage provides stability under heavy loads. The 100 µm coating thickness offers consistent insulation even in damp conditions.

Automotive vs Aerospace: Applications of 6218-J20AB-C3 Bearing
In automotive alternators, 6218-J20AB-C3 Bearing prevents electrical arcing, while in aerospace, its lightweight design suits auxiliary power units. The 50MΩ dry resistance ensures safety in critical systems.

Perfect Fit for Automation: 6218-J20AB-C3 Bearing
For robotic arms, 6218-J20AB-C3 Bearing’s high-speed capability (6300 r/min) ensures smooth motion. The 102 kN dynamic load rating supports repetitive movements without wear concerns.

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