Insulated Bearing Store

Insulated Bearing Store can provide customer different types bearing:

such as:COATED BEARINGS,Series of insulated bearings has been specifically designed to counteract electrical pitting. These bearings are available in both ceramic and resin versions that are suited to a variety of applications. Coating the outer ring of the bearing provides a barrier (capable of resisting at least 100 Megaohms at 500 VDC) against any stray currents that would pass through the bearing.

CERAMIC HYBRID BEARINGS:For especially problematic applications,we offers ceramic hybrid bearings. Using conventional steel inner and outer rings, silicon nitride rolling elements provide excellent electrical insulation while reducing rotating mass and improving heat dissipation.

• Business Typetrading company
• Main MarketNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, Domestic Market
• BrandsOEM Service
• No. of Employees40
• Annual Sales10
• Year Established2012
• Export p.c368156584

Typical applications of the new bearing are in traction motor protection.
Potential cases are: case 1: where electric current could flow from the housing to the shaft. In this case all bearings have to be electrically insulated.
case 2: for electric current flow inside the rotor, normally caused by asymmetrical electric motors. Here protection of only one side of the bearing arrangement is necessary. Mainly the smaller bearing, situated on the non-drive side, is selected for electrical insulation.

case 3: in wheel bearings for low floor tramcars.

The passage of electric current through rolling bearings can lead to damage in a relatively short period of time. Small craters caused by electric current passage which have been tolerated occasionally in the past are no longer acceptable. as a consequence,customer need the INSOCOAT bearing range . These bearings have special coated outer rings with an electrically-insulated layer for a breakdown voltage up to 1,000 V.

To ensure smooth, trouble-free operation, it is necessary to prevent the bearing from electric current passage. The contact areas between housing, outer ring, rolling elements, inner ring and shaft can act as electric contacts. The resulting arcs – characterised by very high temperatures similar to that produced by melting and welding processes – will damage rolling elements as well as raceways of bearing rings.