In order to face the control car exhaust throttle valve motorand  EGR (Exhaust Gas Re-circulation System) motor problems, Japanese seiko developed low torque grease sealing bearing.

Usually, in order to reduce torque, are in the motor assembly to get up to speed of rotation, to reduce the grease of the initial resistance, reduce the viscosity of oil components. But, this kind practice is the key problem of not only break-in rotation is time-consuming, and reduce the oil viscosity, under high temperature using can shorten life.

Therefore, the Japanese seiko corporation through in nanoscale particles within the grease add to reduce grease resistance. That way, compared with the original, can not only stable torque more quickly, and even if bearing at high temperature can keep a long life.

Add in grease ceramic particles, which will base oil as the ingredients in a chain connect, so that the performance of the grease more strong. Specific material name and particle size was not announced.

Because of previous grease in shear force with weak can also enter conveying surface, so ball and rail on the attachment is more grease. Japanese seiko and the development of new grease in into the surface transportation must have strong shear force, so the ball and rail surface adhere properly grease quantity.

 
Through this new method will make the initial torque in a short time stable, will only 70% less time than ever before rotating, and constant torque to decrease before than 30% (100 ℃ when used), also achieved with the grease of the same or higher before the sintering life.



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