Superior Flexibillity Power is transmitted by a Rubber with superior elasticity. Possible transmit the power fully under misalignment. Be smoothly transmitted the power.Low noise. High durability. It is excellent to absorb the mechanical vibration and shock load. SIMPLE ConSTRUCTION Rapie and easy assembly/disassembly without moving any connected equipment. Simple maintenance. Less inventory. Convenient inventory. NO NEED LUBRICATION Not necessary to lubricate. Safe. No sparkling & no risk of fire due to friction. POSSIBLE TO USE ANY ConDITION Anti-oil, water, fume, dust and insulation