Oil Impregnated Sintered Iron Bearings are sliding bearings manufactured from iron powder through high-pressure compaction, high-temperature sintering, and vacuum oil impregnation.
They feature a porous structure capable of storing lubricating oil, offering self-lubrication, cost-effectiveness, and wide application adaptability.
Oil Impregnated Sintered Iron Bearings
Sintered Iron Bearings
Iron Sintered Bushings
Powder Metallurgy Bushings
Oilite Bearings
Iron-based Powder Metallurgy
Cost Advantage
High production efficiency, reduced machining time
Material utilization rate over 95%
Significant savings in non-ferrous metals → lower cost
Self-Lubrication
Uniform micro-pores store oil (18–20% mineral oil by volume)
Long-term operation without additional lubrication
Suitable for conditions where relubrication is difficult or oil contamination is not allowed
Vibration Damping & Noise Reduction
Effectively absorbs vibrations
Operates with low noise
Improves equipment stability and comfort
Durability
Comparable wear resistance to copper-based powder metallurgy bushings under light loads
Prevents shaft seizure with continuous oil supply
Industrial & Household Equipment
Fractional horsepower motors (FHP motors)
Domestic appliances (micromotors, fans, mixers)
Noise reduction in small household devices
Power Tools
Provides lubrication and wear resistance for sliding parts
Textile Machinery
Suitable for dusty environments
Ensures stable operation of sliding components
Automotive Industry
Electric motors, shock absorbers, and guide bushings
Withstands high temperature and impact
Other Applications
Guide positioning bushings in static environments
General engineering requiring maintenance-free operation
Material : Porous Sintered Iron, Oil Impregnated
Lubricant : Mineral Oil (18–20%)
Temperature Range : -80℃ to +160℃
Max. Load Pressure : 45 N/mm²
Friction Coefficient μ: 0.15 – 0.20
Tolerance Standard : ISO 2795:1991
Straight Cylindrical Bushings
Flanged Bushings
Customized Designs
