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Diameter Dm of balls, outer diameter Dn of bearing and inner diameter Dv of the bearing are connected by the relation: Dm=0.5(Dn-Dv)-(0.155÷0.235) (Dn-Dv), and the number of balls in each row of bearings, the diameter Dm of the balls and the diameter Dcp of the bearing in the center of the balls are connected by the relation: z=[πDcp/Dm]-1 ...