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1 n ordinary V-belt drive with type A. Known base diameter D, =150mm,D,=400mm, preliminary center distance a=4500mm. The small pulley rotates at 1460 r/min.

1 n ordinary V-belt drive with type A. Known base diameter D, =150mm,D,=400mm, preliminary center distance a=4500mm. The small pulley rotates at 1460 r/min. Find: (1) the angle a, of contact of the small pulley; (2) the base length La of the belt; (3) the rotary velocity of the large pulley without taking into account the elastic slipping

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