· Trunnion material This paper was based on a Ø m (24 ft) × m (40 ft) ball mill used in a typical mining plant. Some basic dimension of the studied trunnion is shown in Fig. 3. The approximate weight is 28 metric tons. The trunnion material was nodular cast iron per DIN 1693 grade GGG50  equivalent to EN1563GJS5007 .
bearinglube system provides both lift and lubriion for the trunnionbearings. The ballmillaction frees the bauxite from the entrained limestone, . Click Chat Now pdf of milltrinion and gearbox – Gold Ore Crusher For aircraft equipped with retractable landing gear, the trunnionis pivoted to permit rotation of the entire gear assembly. .