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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Intake and exhaust control motor bearings Intake and exhaust control motor bearing
Seiko has developed a throttle valve motor and an EGR (Exhaust Gas Re-circulation System) motor for controlling the intake and exhaust of automobiles; developed a low-torque grease-sealed bearing. Generally speaking, in order to reduce the torque; Run-in rotation; to reduce the initial resistance of the grease, reduce the viscosity of the base oil component. However, the problem with this approach is: not only the running time of the rotation; and the viscosity of the base oil is lowered; the life is shortened when used at high temperatures. Thus, the company reduced the grease resistance by adding nano-scale particles to the grease. This way, compared to the original; not only can the torque be stabilized more quickly; and even longer at high temperatures. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
What is added to the grease is ceramic particles; "There are components in the base oil that are connected like a chain; thus the function of the grease is stronger." The detailed material title and particle size are not released. Grease can enter the conveying surface even when the shearing force is weak; therefore, the amount of grease adhering to the balls and the track surface is large. The newly developed grease needs to have strong shear force when entering the conveying surface. Therefore, the amount of grease attached to the ball and the track surface is sufficient.
This will stabilize the initial torque in a short period of time; the running-in rotation time will be reduced by 70%. Others; the stable torque ratio has been reduced by 30% (at 100 ° C). Also completed with the previous grease Same or higher sintering life.
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Source: China Bearing Network Time: 2018-04-21