1results about How to "Lower oil level" patented technology

This invention belongs to the field of bearing technology, specifically providing a high-speed bearing and motor for an electric drive assembly. The high-speed bearing for an electric drive assembly includes a bearing housing, rolling bearings, an oil-pushing assembly, and a sealing element. The rolling bearings are installed in the mounting cavity of the bearing housing, and an oil reservoir is provided at the bottom of the mounting cavity. The oil-pushing assembly is located in the oil reservoir. Before the motor cold starts, the oil level is raised by a piston, achieving complete immersion of all rolling elements. Subsequently, the piston descends, lowering the oil level. Before the motor stabilizes, the lubricating oil level in the oil reservoir has dropped below the center position of the lowest rolling element. This design ensures that an effective oil film is established between the rolling elements and the inner and outer rings of the bearing at the moment of motor startup, eliminating the risk of dry friction. It also avoids the high-speed rotation of the rolling elements causing violent agitation of the oil, which could lead to an increase in oil temperature.