A lathe having a 5-step pulley is driven by a belt, assumed to be crossed, from a pulley of the same size on the countershaft. The countershaft is to have a constant speed, and the lathe is to have speeds of 60 rpm and 135 rpm when the belt is on the steps either side of the center step. If the minimum speed is 40 rpm and the smallest diameter is 4 in., find theproper speed of the countershaft, maximum speed of the lathe, and the diameter of all steps on the pulleys. 1. A lathe having a 5-step pulley is driven by a belt, assumed to be crossed, from a pulley ofthe same size on the countershaft. The countershaft is to have a constant speed, and thelathe is to have speeds of 60 rpm and 135 rpm when the belt is on the steps either side ofthe center step. If the minimum speed is 40 rpm and the smallest diameter is 4 in., find theproper speed of the countershaft, maximum speed of the lathe, and the diameter of all stepson the pulleys.

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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A lathe having a 5-step pulley is driven by a belt, assumed to be crossed, from a pulley of the same size on the countershaft. The countershaft is to have a constant speed, and the lathe is to have speeds of 60 rpm and 135 rpm when the belt is on the steps either side of the center step. If the minimum speed is 40 rpm and the smallest diameter is 4 in., find the
proper speed of the countershaft, maximum speed of the lathe, and the diameter of all steps on the pulleys.

1. A lathe having a 5-step pulley is driven by a belt, assumed to be crossed, from a pulley of
the same size on the countershaft. The countershaft is to have a constant speed, and the
lathe is to have speeds of 60 rpm and 135 rpm when the belt is on the steps either side of
the center step. If the minimum speed is 40 rpm and the smallest diameter is 4 in., find the
proper speed of the countershaft, maximum speed of the lathe, and the diameter of all steps
on the pulleys.

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