Insocoat Bearing Introduction:
Insocoat bearing, which is also known as electrically insulated bearing is designed to prevent electric current from passing through the bearing.
The external surfaces of either their inner or outer ring are coated with an insulating aluminium oxide layer, which can withstand voltages up to 3000 V DC.
The solutions are very cost-effective compared with other insulation methods.
A special spraying process creates a coating of uniform thickness and extremely strong adhesion, which is further treated to make it impervious to moisture and humidity.
Features and Benefits:
Protection against electrical erosion
With insulating properties integrated into the bearing, INSOCOAT bearings can improve reliability and increase machine uptime by virtually eliminating the problem of electrical erosion.
High electrical resistance
The aluminium oxide coating provides a minimum electrical resistance of 200 MΩ and can withstand voltages up to 3000 V DC.
Consistent electrical performance
Plasma-spray coatings are normally hygroscopic and, therefore, vulnerable to penetration caused by condensation.
To protect against this effect, INSOCOAT bearings are treated with a unique sealant.
Increases machine uptime
Reduce maintenance costs
Common Suffixes for Insocoat Bearings
VL0241: Aluminium oxide coated external surfaces of outer ring, Electrical resistance: min. 50 MW, breakdown voltage: max. operating voltage 1 000 V DC (for example: 6316-2Z/C3VL0241)
VL0246: Aluminium oxide coated external surfaces of outer ring, Electrical resistance: > 150 MW, breakdown voltage: max. operating voltage 3 000 V DC
VL2071: Aluminium oxide coated external surfaces of inner ring, Electrical resistance: min. 50 MW, breakdown voltage: max. operating voltage 1 000 V DC. (for example: 6324/C3VL2071)
VL2074: Electrical resistance: > 150 MW, breakdown voltage: max. operating voltage 2 000 V DC.
VL2076: Aluminium oxide coated external surfaces of inner ring. Electrical Resistance: Min. 150MΩ, Breakdown Voltage: Max. Operating Voltage 3.000v DC
J20C: Inner ring that is insulated with thin ceramic coating
J20AA: Outer ring coating which consists of oxide ceramic, it is applied by plasma spraying and then sealed with synthetic resin. Speciality humid environments
J20B: Outer ring with ceramic coating, process as VL-Template (Voltage 500VDC)
Insocoat bearings are widely used in below fields,
Electric motors and generators
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