◆ blower impeller shaft is made of heat-treated 45 high-quality carbon structural steel, the JIS hardness testing of quality of imports. The average material organization, avoid high concentricity eccentricity, Nanchang Roots blower, the three-blade rotor through the device seal to the tank shell and bearing between two chambers and the engine room, low-power blower, so that oil can not leak to the host room. ◆ gear 1. To ensure vibration free, silent operation and durability, synchronous gear having straight teeth design features. Made of SNCM21, hardened by nitriding and fine grinding operation rate of a minimum of 1.7 and meet AGMA quality standards. Using the most advanced gear 5 precision or accuracy of JIS standard. Strict quality standards not only be extended gear life, and to achieve a low noise. 2. The gear engaged with the shaft by means of a tapered tight. Our company produces clover Roots blower with low noise, high efficiency, easy operation, small amount of wind Roots blower, use maintenance etc. Characteristics of Roots blower clover thanks to the form of the rotor structure and reasonable housing at the inlet and outlet structure, fan vibration, low noise. Bearing selection more reasonable, even each bearing life, thus extending the life of the fan! Models range to meet the needs of different users for different purposes. Nanchang Roots blower, Zhucheng East Han Machinery Co., Ltd., a small energy-saving blower provided by Han Machinery Co., Ltd. Zhucheng East. Nanchang Roots blower, Zhucheng East Han Machinery Co., Ltd., a small energy-saving blower is Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) this year introduced a new upgrade, the above picture is for reference, please call Tel picture on this page or to obtain the latest information, contact: Mr. Wang.