Cone Crusher Parts Mineral Processing Metallurgy
TOP SHELL AND SPIDER The annealed cast steel top shell and spider are made in one piece. The spider is of the three arm type, equipped with a selfaligning, ScorProof plastic ball and socket bearing in crusher sizes 22 to 48in., and with an hourglass type bearing in sizes above 48in. The lubricant is sealed in with a garter type oil seal.