... steel , thickness 1.2mm, mirror face.4. Impeller, casting aluminum alloy impeller , diameter 300mm. 5. Bearing of impeller, permanently ... paint steel wire, thickness 2.8mm.9. Electrical motor, national-grade aluminum alloy frame motor, 380V, 1.1KW, 50Hz, 3-phase, 4 ... ,11. V-belt pulley , motor side, diameter 95 mm , shaft hole size 14mm , material, casting aluminum alloy.12. Belt tensioner, bearing ...