1. and Vehicle for wear resistance
Business Area
• Hard metal bonding / Tappet
( Jang YS award in ‘03 )
• Cupper bonding / Hydraulic parts
( Jang YS award in ‘01 )
• Sintered bonding / Oil impregnated bearing
( Oilless bearing )
• Press in bonding / Double wall pipe
• Hard metal bonding /Spacer
( Jang YS award in ‘05 )
• Other parts for Heavy equipment
and Vehicle for wear resistance
Multi-Functional Products
trough bonding technology
Diffusion Bonding Technology

2. Ⅱ
Bushing types

3. Bushing Review for Excavator

4. Pressed Embossing(PEM) Bushing

5. Design Concept of EM Bushing
Performance Mechanism of EM(Embossing) Bushing -
Several embossing have a role of grease reservoir. When operation of bush, grease is
spread widely from the embossing, then oil film performed between pin and bush contact
area, so performance of friction and wear characteristic of pin and bush is excellent.
Before
Operating
Grease filling in Dimple
Under
Operating
Grease flow pattern

6. PEM Bushing