Material: sintered iron powder with/without oil impregnated
This bushing is made of high pressure mold with iron powder,sintered under high temperature and impregnated into the capillary porosity with oil the bushing in vacuum equipment.
Feature
Maintenance free,Self-lubricating,Abrasion Resistance 
Suitable for high/middle speed and low load. 
Good friction factor. 
Silent working. 
High precision tolerances.
The products are mainly used in house electric appliances, power tools, textiles machinery, chemical industry, and auto industry