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FAG Current-Insulated Bearings 6318-J20AA-C3

FAG Current-Insulated Bearings 6318-J20AA-C3

The FAG 6318-J20AA-C3 is a current-insulated bearing with a 90mm bore and 190mm outer diameter, designed to prevent electrical damage. Its outer ring features a ceramic coating, providing insulation up to 3000V.

With a dynamic load rating of 142kN, it handles heavy loads smoothly and spins up to 4900 RPM. The C3 radial clearance ensures reliable performance under varying temperatures.

The sheet metal cage offers durability, while the coating resists electrical currents, even in damp conditions (10MΩ resistance). Ideal for electric motors or generators where stray currents are a concern.

Weighing 5.3kg, it’s robust yet manageable for industrial use. Compliant with RoHS and REACH standards for safe operation.

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Product Parameters

  • Model 6318-J20AA-C3
  • Product Category Current-Insulated Bearings
  • Insulating Coating Types Outer ring ceramic coated
  • Coating Suffix J20AA
  • Manufacturers FAG
  • Bore Diameter 90.0 mm
  • Outside Diameter 190.0 mm
  • Width 43.0 mm
  • Net Weight 5.3 kg
  • Basic Dynamic Load Rating 142.0 kN
  • Basic Static Load Rating 102.0 kN
  • Reference Speed 4900 r/min
  • Breakdown Voltage (DC) ≤3000 V
  • Layer Thickness 200 µm
  • Electrical Resistance 50MΩ (Dry); 10MΩ (Damp)
  • Cage Material Sheet metal
  • Radial Internal Clearance C3
  • ROHS Compliant
  • REACH Compliant
FAG Current-Insulated Bearings 6318-J20AA-C3 dimension drawing
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Features

How Is 6318-J20AA-C3 Bearing Engineered for Reliability?

6318-J20AA-C3 Bearing features an outer ring ceramic coating, providing excellent insulation against electrical currents.
Its breakdown voltage of up to 3000 V ensures reliable operation in electrically demanding environments.

The sheet metal cage maintains ball alignment, enhancing durability and reducing wear.
With a basic dynamic load rating of 142.0 kN, it handles heavy loads effortlessly.

6318-J20AA-C3 Bearing operates smoothly at speeds up to 4900 r/min, balancing performance and longevity.
Its C3 radial internal clearance allows for thermal expansion, ensuring consistent operation.

The insulating coating offers high electrical resistance, even in damp conditions, with values up to 10MΩ.
This makes 6318-J20AA-C3 Bearing ideal for applications where electrical insulation is crucial.

Application

Industrial Uses of 6318-J20AA-C3 Bearing
The 6318-J20AA-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.

Where Is 6318-J20AA-C3 Bearing Used?
You’ll often find 6318-J20AA-C3 Bearing in wind turbines, where it handles high loads and prevents electrical arcing. The C3 clearance also accommodates thermal expansion during prolonged operation.

Built for Heavy-Duty Use: 6318-J20AA-C3 Bearing
This bearing excels in industrial gearboxes, thanks to its robust design and high dynamic load rating. The sheet metal cage adds durability, making it suitable for demanding applications.

Automotive vs Aerospace: Applications of 6318-J20AA-C3 Bearing
In automotive alternators, 6318-J20AA-C3 Bearing reduces electrical wear, while in aerospace, its precision supports auxiliary power units. The consistent performance makes it versatile across industries.

Perfect Fit for Automation: 6318-J20AA-C3 Bearing
For robotic arms and CNC machinery, 6318-J20AA-C3 Bearing offers smooth rotation and electrical insulation. Its high reference speed ensures efficiency in fast-paced automated systems.

Q&A

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