Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.576-577
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- 2006
Development of Helical Groove Bush for Construction Machines
- Maruyama, Kazuo (Minoridai, Matudo-shi, Chiba, 270-2295 JAPAN) ;
- Mawatari, Osamu (Minoridai, Matudo-shi, Chiba, 270-2295 JAPAN) ;
- Tokushima, Hidekazu (Minoridai, Matudo-shi, Chiba, 270-2295 JAPAN) ;
- Yanase, Takeshi (Minoridai, Matudo-shi, Chiba, 270-2295 JAPAN) ;
- Maki, Kunio (Minoridai, Matudo-shi, Chiba, 270-2295 JAPAN)
- Published : 2006.09.24
Abstract
This study was conducted to improve the durability and decrease the friction of the sintered bushing used in the joints of construction equipment. Research was carried out to examine the effects of the groove pattern on the inner surface. The following results were obtained: (1) The bushing (EK Bush) with grooves on the inner diameter showed increased durability as compared to a non-grooved bushing. (2) The helical-grooved bushing showed the least amount of wear; it was １/10 of the wear of the non-grooved bushing. (3) If the distance between grooves was decreased, then the coefficient of friction also decreased.