LubriKup Type B Composition Rings

LubriKup^® Type B flange and split-composition rings are made from a blend of duck and rubber specially compounded for oil well pumping. Each ring is precision-ground to assure uniformity of bearing contact in precision barrel tube or working barrel. The rubber is compounded to resist bloom that gives unnatural swell. The material will resist temperatures up to 270°F (132°C) with excellent results.