Quality inspection of large castings pulley pulleys, Bushes cast only after the final inspection process in order to draw conclusions on whether it meets the requirements of large Bushes, this requirement to load test procedures and technical specifications, one of its content is the casting defect types are not allowed, and the extent of appearing Bushes manufacturers, and even test methods are also included in the specification. Pulley drive pulley ratio is how to calculate the efficiency ratio determines the pulley Bushes wholesale, a pulley and efficient power transmission lines need to hold good, in the choice of when to pay attention to the pulley transmission power, a lot of people do not know the pass how power calculation, the following Jiaojiang Jingyi Machinery Factory to tell you about. Transmission ratio is calculated as i = Dl / D2 = n2 / nl where: i: transmission ratio; Dl: capstan (power machine pulley) mm; D2: driven wheel (water pump pulley) mm; n1: Active rotation number (turns / points); n2: passive rotation number (rev / min); When using flat belts, transmission ratio i is determined: the opening drive. i <5, or prone to slipping. Bushes price | Hengda Machinery (certified) | Bushes provided by the Texas Hengda Machinery Co., Ltd. Texas Hengda Machinery Co., Ltd. (www.sddzhdjx.com) (www.sddzhdjx.com) is Dezhou, machining leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hengda Machinery leadership in the staff warmly welcome all inquiries negotiations to create a better future Hengda machinery.