Stray electrical currents can cause fan failuresIn a variable speed fan using frequency converters, stray electrical currents often pass through the bearings. The damage can be severe, eventually causing premature bearing failures and fan breakdowns.
Prevent flashover-related bearing failure in electric motors and generators
While not always easy to detect, the damage caused by flashover can be significant. Eroded or damaged balls, localized melting of raceways, and destruction of grease can all lead to vibration and noise, which in turn, lead to shortened bearing life, unplanned stoppages – and expensive downtime. INSOCOAT bearings feature a special outer-ring coating that prevents flashover damage.
Coating technology offers outstanding protection
An INSOCOAT bearing is robust and can be handled like ordinary non-insulated bearings. It is also impervious enough to maintain its electrical resistance in damp conditions and to protect the underlying steel from corrosion. The insulation tolerates heat and is not damaged by lubricants.