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Questions and Answers
The speed of the rope is less than ______ m/s (600 fpm)
3
The angle of contact for the bigger pulley is ______ than the angle of contact for the smaller pulley
greater
The surface speeds of the smaller pulley are the ______ as the bigger pulley
same
The belt speed is the ______ as the pulley's surface speeds
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The speed ratio, $SR$, is calculated using the equation $SR = \frac{D_2}{D_1}$, where $D_1$ is the diameter of the smaller pulley and $D_2$ is the diameter of the bigger pulley
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The belt length, $L$, is calculated using the equation $L = \frac{(D_1 + D_2)}{2} + 2C + \frac{(D_2 - D_1)^2}{4C}$, where $D_1$ is the diameter of the smaller pulley, $D_2$ is the diameter of the bigger pulley, and $C$ is the distance between the centers of the pulleys
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The open belt connection is used for connecting parallel ______
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The roller chain does not ______
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The roller chain has a high ______
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No ______ tension is necessary for the rolling chain
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Flexible connectors made of leather, rubber, or woven fabrics and run on pulleys nearly cylindrical with smooth surfaces are called ______.
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Flat belts are used to connect shafts as much as ______ apart.
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V-belts are used for connecting shafts which are less than ______ apart.
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The speed ratio of V-belts can be up to ______.
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The speed of flat belts can be up to ______.
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Flat belts are usually made of ______, rubber, or woven fabrics.
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