Advantage：

• extend bearing using life
• avoid loss of lubricating oil
• avoid weariness of axis or muff

Application：

• decelerating machine
• gear case
• blower fan bearing case
• pump bearing case

• with mechanical sealing principle to realize no leakage
• no pollution by outer space
• no weariness nor damage on axis nor muff
• close axial direction dimension
• increase bearing using life effectively