How can the tension of a pulley be different?
If the pulley has mass=> it will have considerable inertia momentum. Due to its angular acceleration, its torque will be different from 0 , which implies that T1 and T2 is not equal. Also, if the rope is not massless, the tension will also be different.
What can cause a belt pulley to snap?
• A worn bushing in the tensioner pulley can cause vibrations and noise. If the bushing seizes, it may cause the belt to snap. • A weak or broken spring inside the tensioner can’t maintain proper tension and the belt will slip. Springs lose tension over time from exposure to heat.
Where is the tensioner on a drive belt?
It is the long one. The pulley itself is found on the outside of the belt, which is how it adds tension or pressure. The problem with the drive belt tensioner is that once it goes, it usually means replacing the pulleys and sometimes the drive belt itself. It’s not usually a one-part replacement job.
When to replace idler pulley and belt tensioner?
If the automatic belt tensioner has failed (and the engine has a lot of miles on it), it’s probably a good idea to replace the idler pulley (s) at the same time. Why? Because the shaft bearings on all the pulleys will have the same amount of wear.
What are the issues with pulley tension?
Problems With a Pulley Tension Rust and Corrosion . The pulley tensioner sits exposed to the elements at the front of the engine. Subjected to puddled… Debris Contamination. Rocks, gravel and other road debris can be thrown up into the tensioner pulley grooves and jam the… Pulley Tensioner
How do you remove a tensioner pulley?
Hold the tension from the belt, and slip the belt off the auto tensioner pulley to remove the belt and pulley system. Slowly release the tension to avoid damage or injury, and then remove the tool from the belt auto tensioner.
Is idler pulley the same as the tensioner pulley?
The idler pulley and the pulley on the tensioner are the same. They also use the same bearing which is replaceable and at a much reduced price. You should replace both bearings.
What is the equation for pulley?
Calculate the work input in a pulley by using the previous readings in the correct mathematical equation: Work (W) equals force (f) multiplied by distance (d), or W=fd. The work done by the pulley is the equation of weight (w) multiplied by height travelled (h).