For the investor who believes great businesses outperform the flavor of the month, loves dividend stocks, and is looking to turn their portfolio into a cash-generating machine, look no further than insurers: ACE Limited (NYSE: ACE), Aflac (NYSE: AFL), and Chubb (NYSE: CB).

Despite the difficulty of pricing risk, over the past few decades, all three companies have proven their underwriting discipline, carving-out strong market positions whether it be in accident and health, like Aflac, or predominately property & casualty, like ACE and Chubb. 

But to be considered a great dividend stock means jumping additional hurdles. The slideshow below shows five qualities that make ACE, Aflac, and Chubb rock-solid dividend stocks. 

Dave Koppenheffer owns shares of ACE Limited. The Motley Fool recommends Aflac. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.