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The Speed of Larger Pulley formula calculates the rotational speed of the larger pulley in a synchronous belt drive system based on the speed of the smaller pulley and the transmission ratio. This relationship is fundamental in mechanical power transmission systems.
The calculator uses the formula:
Where:
Explanation: The transmission ratio represents the size relationship between pulleys, and this formula calculates how the speed changes between the driving and driven pulleys.
Details: Accurate speed calculation is crucial for designing efficient power transmission systems, ensuring proper torque delivery, and maintaining optimal performance in mechanical applications.
Tips: Enter the speed of the smaller pulley in Radian per Second and the transmission ratio (must be greater than 0). The calculator will compute the speed of the larger pulley.
Q1: What is transmission ratio in belt drives?
A: Transmission ratio is defined as the ratio of the large to small pulley size, calculated by dividing the number of teeth in the large pulley by those in the small pulley.
Q2: Why does the larger pulley rotate slower?
A: The larger pulley rotates slower to maintain constant belt speed and power transmission, following the principle of conservation of angular momentum.
Q3: Can this formula be used for all types of belt drives?
A: This formula applies specifically to synchronous belt drives where there's no slip between the belt and pulleys.
Q4: What units should be used for speed measurements?
A: While Radian per Second is used here, the formula works with any consistent angular velocity units (RPM, degrees per second, etc.).
Q5: How does pulley size affect speed ratio?
A: Larger transmission ratios (bigger size difference) result in greater speed reduction between the smaller driving pulley and larger driven pulley.