China ISB Swing Bearing (ZR3.25.2800.400-1SPPN) Three Row Roller Turntable Bearing Internal Toothed Gear Slew Ring Bearing, Find details about China Zr3.25.2240.400-1sppn, Zr3.25.2500.400-1sppn from ISB Swing Bearing (ZR3.25.2800.400-1SPPN) Three Row Roller Turntable Bearing Internal Toothed Gear Slew Ring Bearing