Jinhai Industry and Mining Machinery Fittings Co., Ltd. is a professional manufacturer of floating oil seals for construction machinery, and its performance fully implements the JB / T8293.1-1999 standard. Product specifications and models are complete, from φ50mm to φ1425mm, hardness can reach HRC65-72, working surface accuracy Ra0.1-0.2μm, flatness can reach 0.0015mm, high hardness, high wear resistance. Material composition: The material of our company's floating oil seal is a special chromium-molybdenum alloy cast iron with a chromium content of 15% and a molybdenum content of 1-3%. This alloy cast iron material has the characteristics of high wear resistance, high hardness and corrosion resistance. life: The hardness of our floating oil seal is between HRC 65-72, and the life can reach 4500 hours. Installation Notes: 1. Wipe the floating seal ring bright band anti-rust oil before installation (the surface must not have cotton paper fibers); 2. Regardless of the size of the floating oil seal, it must be assembled with a special installer during installation. Only in this way can the floating oil seal be in the correct position; 3. Before attaching a pair of floating oil seals, apply SAE30-40 oil on the bright band respectively; (note that no oil on any other surface) 4. During the running-in movement period of the first hour or so for most floating seal rings, a small amount of engine oil will be observed to be thrown from the outer surface of the oil seal ring. This is not a leak and is normal lubrication. Pressure: 3.0-4.0MPa (maximum) Temperature per square centimeter: -40 ℃ -100 ℃ Linear speed: 3 meters per second The scope of products: 1. A full range of crawler bulldozers made in China, Shantui, Xuanhua, Shanghai, Huanghe, Yishan and Qinggong; 2. Domestic 1.3t—180 full series of crawler and tire hydraulic excavators; 3. Japanese D50, D60, D80, D85, D155, D355, American D58, D60, D7G, D8K, D9L, D10H crawler bulldozers; 4. German R902-R992 and American Carter and Japanese Komatsu series hydraulic excavators; 5. Various types of loaders, graders, cranes, mixers, mining machines, etc. at home and abroad.