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Janice12
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I have a 8-1/2 inch drive pulley turning at 340 rpm. I want to have it drive a pulley and want that pulley, the driven pulley, to turn at 200 rpm. What is the formula to figure out what size pulley I need. Please help
To calculate the driven pulley size, you will need to know the gear ratio, the diameter of the driving pulley, and the desired RPM of the driven pulley. The formula for calculating the driven pulley size is: Driven Pulley Size = (Driving Pulley Size x Gear Ratio) / Desired RPM. For example, if the driving pulley is 10 inches in diameter, the gear ratio is 3:1, and the desired RPM is 500, the driven pulley size would be (10 x 3) / 500 = 0.06 inches.
Calculating the driven pulley size is important because it determines the speed and torque of the driven pulley. This is crucial in designing systems that require specific speeds or torque for their operation, such as in vehicles, machinery, and industrial equipment.
Yes, the driven pulley size can be either larger or smaller than the driving pulley size. The size of the driven pulley will depend on the gear ratio and desired RPM, as well as the size and type of the driving pulley.
The gear ratio and pulley sizes have an inverse relationship. This means that as the gear ratio increases, the driven pulley size decreases and vice versa. It is important to keep this relationship in mind when calculating the driven pulley size.
Yes, there are some limitations to calculating the driven pulley size. The formula for calculating the driven pulley size assumes that the belt or chain connecting the two pulleys has perfect tension and does not slip. In reality, there may be some slip, which can affect the accuracy of the calculated pulley size. Additionally, the size and type of the pulleys may also affect the accuracy of the calculation.