Mahadev Enterprise

INSOCOAT single row deep groove ball bearings feature an electrically insulatingcoating on the outside surfaces of either the inner or outer bearing ring. Thiskeeps stray electric currents from passing through the bearings, protecting themagainst electrical erosion damage and helping prevent lubricant degradationresulting from electric current discharge. As with deep groove ball bearingsgenerally, they are particularly versatile, have low friction and are optimized forlow noise and low vibration, which enables high rotational speeds. Theyaccommodate radial and axial loads in both directions, are easy to mount, andrequire less maintenance than many other bearing types.• Coating protects against electrical erosion damage• Reduced lubricant degradation resulting from electric current discharge• Typical benefits of single row deep groove ball bearings

Electric motors, generators and associated equipment are at risk when an electric current passes through their bearings. This can damage the contact surfaces of rolling elements and raceways in the bearings (electrical erosion) and rapidly degrade the grease. An additional risk in electric motors and generators comes from high frequency currents caused by the inherent stray capacitance. The risk of damage increases where the application uses a frequency converter.

Insocoat Bearings:

Are designed to prevent electric current from passing through the bearing

Have the external surfaces of either their inner or outer ring coated with an insulating aluminium oxide layer, by applying a sophisticated plasma-spray process for an outstanding quality finish

Are a very cost-effective solution compared with other insulation methods

 
Bearing Features:

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 M??? and can withstand voltages up to 3 000 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.

 
Assortment:
The standard assortment of INSOCOAT bearings listed here constitutes the most commonly used sizes and variants of:

Single row deep groove ball bearings.

Single row cylindrical roller bearings.

For bearing types and sizes not listed in the product tables (→Deep groove ball bearings, Cylindrical roller bearings), contact SKF.
For applications where smaller bearings than those listed are needed, SKF recommends using SKF Hybrid bearings.
 
In addition to the standard assortment, SKF can supply special INSOCOAT bearings and bearing units with complex ring geometries, such as:

Four-point contact ball bearings.

Flanged tapered roller bearings. 

Tapered roller bearing units (TBU). 

Traction motor bearing units.