Bridge pulley with Rutgerson ball joint The elegant alternative to the conventional Padeye with a unique ball joint! Under load, the ball joint adjusts to the optimum angle in relation to the direction of pull. Thanks to the innovative ball - and - socket joint system, the pulley can be tilted at an angle of 50° to the deck, preventing dangerous overruns on the winch. The ball joint is made of highly polished AISI 316 stainless steel. The base plate is fitted with four M8 countersunk screws (not included).