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V Belt Technical Specification
Universal V Belts ensures non -stop power transmission of electric motors drive with minimal stretch and anti-static oil-heat resistant quality, in a way, cords
used are high tenacity polyester, jacket fabric rubberised with neoprene rubber and supersedes IS:2494, DIN 7753 and BS 2790 standards.
LENGTH CODING SYSTEM:
When the code number 50 is shown on the cello - tape affixed on each Poly V -Belt, this indicates that the actual length coincides with the nominal length printed on the belt. Each deviation of 2.5 mm from the nominal length is represented by one unit. For instance,
a V -belt with size 100" coded 50 is exactly 100 inches inside length. If the code is 49, then it is 99.9" and if the code is 51, then it is 100.1" inside length.
MATCHED SETS:
The question of matched sets arises in case of multi V -belt drive as the length of V -belt should be matched in order to obtain even distribution of load. A 'Matched Set' is simply a set of such belts, the length of which are within the specified limits, so that these can be used together.
The table as shown depicts the permissible length deviations in consecutive grading numbers marked near the size code which represents the exact length measured under specified operating tensions.
V-Belt Service Guide