Cast steel couplingThe classification of No. 35 No. 45 by those modelsCouplingBrief description-Rigid couplingNeed a harder material such asGear coupling, Oldham couplings, flange couplings, chain couplings and other rigidly connected products should use No. 45 material.Flexible couplingUse lower steel grade for soft connection, for examplePlum coupling, Star coupling, elastic sleevePin couplingFor details, the machinery factory will provide you with enthusiasm for calling the company's technical telephone!