Current Insulated Bearings.
When a stray current in an electric motor uses a bearing as its path to ground, bearing damage can occur. The electric current passing can cause micro cratering in the raceways of inner & outer rings and on the rolling element surface which ultimately changes the structure of the metal.
Once bearing damage from electric corrosion has begun, increased noise levels, reduced effectiveness of lubricant and excessive vibration will drastically decrease bearing service life.
Electric corrosion causes increased noise levels & vibration and reduced effectiveness of lubriciant – drastically decreasing bearing service life.
“INSUCOAT”
To overcome this problem BMI engineers have developed in collaboration with a university a special ceramic coating which emsures 100% protection and electric insulation.
The coating is applied using a “plasma spraying technology” from Europe. Sosphisticated pre and post application processes yield outstanding coating quality which is wear resistant.
The coating can be applied on the inner or outer ring depending upon the application. The insulation has a guaranteed breakdown resistance for at least 1000V in standard. For higher resistance as well R&D team has developed a spacial coating to ensure insulation uoto 3000V.
BMI has collaborated to develop a special ceramic coating using a European “plasma spraying technology” which ensures 100% protection and electric insulation.
Typical Application:
- Traction motor of Railway vehicles.
- Electric motors (AC/DC).
- Generators (wind power).
