Home / Machine Parts / Shafts, Stops, Thimbles / Ball Stoppers Ball Stoppers Rubber Ball Stopper. 1.55″ Item no: RBS Nylon Ball Stopper, 1.25″ Item no: RBS-P Rubber Ball Stopper, 1.375″ Item no: RBS-A Pictured from left to right. SKU: RBS-## Categories: Machine Parts, Shafts, Stops, Thimbles Product ID: 2569 Related Products