Refer to dimension “P” in the diagram above. Using a tape measure, measure the span length of the drive in inches.Lengthen the center distance or adjust the tensioning idler to remove any timing belt slack.Place the timing belt on each timing belt pulley and ensure proper engagement between the timing belt pulley and timing belt teeth.Do not pry the timing belt onto the timing belt pulleys. Shorten the center distance or release the tensioning idler to install the timing belt.Q = Deflection, 1/64" per inch of span lengthīefore beginning, inspect the timing belt for damage and verify that the timing belt pulleys are properly aligned (parallel and angular). This method is better suited for larger drives with long timing belt spans. Primarily due to the difficulty in measuring small deflections and forces common in small timing belt drives. While being a relatively quick method, this method is usually not very accurate. Using these two values along with a straight edge and a pencil style tension gauge you can install a timing belt properly. Specifically the target tension is broken into two values deflection force and distance. Numerical Method (Force/Deflection)īy measuring the deflection of the timing belt with a known force the required tension can be applied. After the pre-tensioning steps are completed there are several methods for verifying proper final tensioning. Check to make sure that the timing belt teeth stay seated in the tooth grooves by rotating the drive system by hand. Before any final tensioning is to be applied make sure that the timing belt teeth are fully seated in the tooth grooves on both timing belt pulleys. Take up any loose slack in the timing belt by adjusting the center to center distance between the two timing belt pulleys. While a taut string or timing belt can stand a strong pull. Loose timing belt tensioning acts like a loosely-held piece of string, with a snapping action as in a high torque situation the string or timing belt will break because the added stress is more than the timing belt was designed to take. Timing Belt and Timing Belt Pulley - Installation.ContiTech – Mechanical Power Transmission Drive Design Calculator.Timing Belt Length and Center to Center Distance Calculator.Timing Belt Unusual Noise (Excessive Noise).Shafts Out of Sync (Registration Error).Excessive Temperature of Belt, Bearings, Housings, Shafts, Etc.Timing Belt and Timing Belt Pulley - Troubleshooting.ContiTech - Mechanical Power Transmission Drive Design Calculator.Timing Belt Identification and Replacement.Timing Belt Advantages and Disadvantages.Timing Belt Length and Shaft Center to Center Distance Calculator.ContiTech - Mechanical Power Transmission Design Calculator.Timing Belt Pulley - Standard Tolerances.Timing Belt Pulley - Face Width Tolerances. ![]() Timing Belt Pulley - Belt Guide (Flanges) Guidelines.Timing Belt Pulley - Pitch Diameter and Outside Diameter Charts.Timing Belt Pitches and Timing Belt Tooth Profiles.Timing Belt Pulley - Belt Guide Flanges.
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