There are many factors affecting the service life of the coupling, such as coupling material selection, heat treatment process, manufacturing precision, coupling assembly and mounting accuracy, use and maintenance status, etc., as well as drum-shaped gear couplings. Considering the service life of the drum-shaped coupling from the manufacturing aspect of the coupling manufacturer , it should firstly look at the quality guarantee problem of the nominal torque of the coupling type of the coupling type of the coupling manufacturer , that is, according to the customer. Reasonable material selection and heat treatment process formulation, such as 45# forgings or 42CRMO forgings, in actual use conditions? Corresponding heat treatment process follow-up, quenching and tempering, quenching and nitriding treatment, etc. Of course, at the beginning of manufacture, professional technicians should design the modulus of the internal and external teeth of the drum-shaped gear coupling that fully meets the national standard. The number of teeth and the flank clearance, the meshing position of the teeth, and the diameter and number of the connecting bolts, and the like. Excellent coupling manufacturers in the precision manufacturing of couplings, but also according to the customer's actual working conditions and installation and use state to provide customers with high quality coupling manufacturing precision, such as material selection, bore tolerance control (oil intrusion Tolerance problems with loading and pressure assembly), attention to the lubrication and sealing of the coupling, to inform customers of the precautions for installation and maintenance, etc. Swabs are ideal for collecting large numbers of samples and quickly eluting samples. It immediately releases specimens into transport media and is widely used in molecular genetics, forensic science, clinical laboratories, and more. Sponge Swab,Medical disposable sample collection sample flocking swab,A tube flocking swab for the collection of nasal cell samples,Single use Jiangsu iiLO Biotechnology Co., Ltd. , https://www.sjiilogene.com
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