Lastly, if you are changing any of the timing belt pulleys in the power transmission drive than the timing belt length is more than likely to change also. If the timing belt is in place measure the circumference of the timing belt (distance around the outside edge of the timing belt)įrom these pieces of information a replacement timing belt can be identified. You can also measure the length of the timing belt from end to end if the belt is broken. I suggest marking one tooth on the timing belt with some sort of identification so that you have a starting point for the tooth count. Count the number of teeth on the timing belt.You should also look for identifying numbers and/or letters on the pulleys themselves to help in the timing belt tooth profile identification. If the valley between the teeth is flat than it is and Pol圜hain GT style timing belt. Note the shape of the timing belt pulley teeth (tooth profile) if the valley between the teeth is curved than it is an HTD style timing belt.Note: Timing Belt Tooth Profile Abbreviations This is the distance in millimeters (mm) and/or inches between the center of the crown of one tooth and the center of the crown of the tooth adjacent to it.ĭownloadable/printable Timing Belt Tooth Profiles and Pitches (.pdf) Rubber construction is extremely flexible while a polyurethane construction is plastic like and has little flexibility Note the construction of the timing belt.Secondly, if there is no trade size indicated on the timing belt do the following: Common synchronous belt manufacturers include: Also, by being able to identify the manufacturer and/or trade name on the timing belt will assist in the identification process. These numbers indicate a standard trade size and will help in identifying the specifics of the cog belt. The first step in identifying which timing belt that you have is to look for identifying numbers and/or letters marked on the timing belt. Timing Belt and Timing Belt Pulley - Installationĭownloadable/printable Timing Belt Identification and Replacement (.pdf).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.

Timing belt diagram