BR Clamp Flexible Coupling 1.Aluminum, different shaft size and length available ... in in dynamic application synchronously. 1.Features Of BR series Clamp Type Flexible coupling * One-piece metallic spring coupling, 2 screws for ... .3 - -Welcome to contact us!IBEST ELECTRICAL CO.LTD BR type Coupling ,Clamp Type Flexible Coupling, Encoder Coupling ( IBEST)