... 2. Bearing assembly cylindrical structure, easy to adjust space between impeller and front liner. Can be removed completely when repaired. ... Grease lubrication.3. Packing seal, expeller seal and mechanical seal.4. Discharge direction at intervals of 45 ... ores, refuse ores, ashes, cinders, cements, mud, mineral stones and . in the industries of metallurgy, mining, coal, power, building ...