Sintered oil-containing bearings that address low friction for electronic throttle motors and noise reduction during low-temperature starts.

In automotive motors such as electronic control throttles, in addition to low friction, stable operation at room temperature and noise reduction during low-temperature starts are required. When selecting copper-based materials to enhance performance, balancing material costs can also be a challenge. Daiamet's F339 is a sintered oil-bearing bearing made from iron-copper-based material that increases the copper area ratio of the bearing inner diameter surface without increasing the copper content. It improves friction characteristics compared to the conventional material F336. ■ Material Design Supporting Low Friction ▼ Improved copper area ratio on the surface from the conventional 20-50% to over 80% ▼ Strengthened copper alloy phase with uniform dispersion of graphite in the matrix ▼ Improved static and dynamic friction characteristics at room temperature ■ Performance Required for Automotive Motors ▼ Suppression of startup noise at low temperatures ▼ Material design targeting the sliding characteristics of copper-based materials using iron-copper-based materials ■ Application Examples ▼ Electronic control throttle motors ▼ Power seat motors, EPB motors This can be utilized for selecting bearings for automotive motors that prioritize friction characteristics and quietness during low-temperature starts. Documents summarizing the material structure, copper area ratio, and friction characteristics of F339, as well as more detailed benefits from its introduction and use in automotive motors, can be downloaded from the link below.

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