... used in the steel industry, harbor, coal industry, power industry, cement industry, etc2.Tube: Q2353.Shaft: 45# STEEL4.Bearing: Single & ... Double Row Deep Groove Ball Bearing 2RZ&2Z with C3 clearance.5.Seals ... used in the electric power, metallurgy, mine, coal, cement, steel, chemical, port, hydroelectric power, and grain industries. Delivery detail: ...