text: # How much tension should a belt tensioner have?
  
  ## How much tension should a belt tensioner have?
  
  Test the proper tension on the belts. A general rule of thumb for the correct tightness is being able to twist a belt with a thumb and finger a 1/2 turn and feel resistance. If you can turn it more than a 1/2 turn, you do not have enough tension on the belt.
  
  ### How do you know what size pulley belt to get?
  
  How to calculate a belt length?
  
  1. First, determine the diameter of the larger pulley. Measure the diameter of the larger pulley.
  2. Next, determine the diameter of the smaller pulley. Measure the diameter of the smaller pully.
  3. Next, measure the distance between pulleys.
  4. Finally, calculate the belt length.
  
  How do you calculate pulley ratio?
  
  The Math of Pulley Sizing There are complicated formulas for determining pulley ratios but in generic, layman terms, simply divide the driven component (pump) by RPM, the driver component (motor or engine) rated by RPM to get the required ratio.
  
  How to calculate pulley ratios?
  
  Calculate the pulley ratio by dividing the pulley’s pitch diameter by the pitch diameter of the drive pulley. For example, suppose the drive-shaft has a diameter of 2.2 inches, and two pulleys driven by the belt have diameters of 4.4 inches and 2.8 inches.
  
  ## What is the formula for pulley?
  
  The formula for sizing a pulley is: Engine Speed (RPM) =. Pulley Diameter (Generator) Generator Speed 3600 RPM. Pulley Diameter (Engine)
  
  ### What is tension in pulley?
  
  Tension pulleys are belt pulley systems that have at least one pulley wheel, or “block,” that is not in a fixed position. This movable block is placed in a manner within the pulley system that allows it to decrease the amount of tension on the belt that the pulley system is driving.
  
  How do you calculate the RPM of a pulley?
  
  Calculate the Speeds. Calculate the speed of each pulley by dividing the drive speed by the pulley ratio. For example, given a drive speed of 750 RPM, the speed of the first pulley = 750/2 = 375 RPM, and the speed of the second pulley = 750/1.27 = 591 RPM.
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