Alpine Rubber Co.
How to find the size of your rubber tracks.
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To check for the size of rubber track you need, look at your existing track to see if the size is stamped into the rubber.
If can't find a track size stamped into the rubber then you can take three simple measurements that will determine which replacement track you need.
The measurement is read Width x
Pitch x Links.
Get the
Measure sheet form |
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There are about 2500 different types of machines on the market today. These machines use a wide variety of tracks sizes. Sprocket driven rubber tracks are put into two different classifications, conventional and interchangeable. Conventional type rubber tracks: Conventional type rubber tracks can only be operated on undercarriages designed for rubber tracks only. Conventional type tracks have a pitch measurement (this is the distance from the center of one metal link to the center of the next metal link) of 60,72,84,86,87,90,100, 125 and 150 millimeters |
Interchangeable tracks:
Interchangeable type rubber tracks can be used on undercarriages designed to operate steel and rubber tracks. Interchangeable tracks can be made in a long pitch or short pitch style track.
These tracks have pitch measurements of 48,96,52.5,54,55,56,71,72.5,73,81,81.5,83,83.5,109,142,144,146,163 and 167 millimeters. Some machines can have an even greater pitch measurement.
Long Pitch tracks have a metal link landing on every other sprocket tooth.
Short Pitch tracks have a metal link landing on every sprocket tooth.
How to convert long pitch tracks to short pitch tracks:
Long Pitch measurement x Number of long pitch Links = Total circumference of long pitch track. Divide this number by the short pitch measurement and this equals the number of short pitch links.
Example:
Long Pitch Track measurement = 300 x 109 x 39
109 x 39 = 4251
4251 / 52.5 = 80.97 links
Round the number of links to the nearest even number, which is 80. This equals your number of short pitch links.
Short Pitch Track measurement = 300 x 52.5 x 80