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Variable Speed Belts – Procedure for Belt Identification

Step 2 - What is the belt type?

Variable speed belt is actually a wide V-belt.

Step 3 - What is the belt width – respectively, what is the belt profile?

The procedure is the same as for V-belts.
Measure the upper width of the belt, e.g. 47 mm = profile width 47 mm.
Measure the belt thickness, e.g. 13 mm = profile 47 x 13.

In the profile table, you can find the appropriate type.

Step 4 - What is the belt length?

Measure the length of the belt, e.g. encircle the outer surface with a string.
Then measure the length of the string.

Belt length

  • inner length Li - measured by the inside surface
  • outer length La - measured by the outside surface
  • working length Lw - working length

More tips for belts identification

Newer belts are marked with a product number and/or manufacturer.

In case of repeated belt damage or breakage, it is necessary to remove the belt and determine its fault.

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