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V-Belts – Procedure for Belt Indentification

Step 2 - What type of V-belt are you looking for?

Classic sheathed belt
Raw-edge cogged V-belt

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

The same procedure applies to both sheathed and cogged V-belts. 
Measure the upper width of the belt, e.g. 17 mm (belt type 17/B)...
... or e.g. 16.3 mm (belt type SPB or XPB for belts with teeth).  
Measure the belt thickness, e.g. 13 mm (belt type SPB 16.3x13)...
... or e.g. 10 mm (belt type 17/B with a measurement of 17x10).

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.
High performance cogged belt types XPZ-XPA-XPB-XPC.
ContiTech belts have cut sides.
Vertical strands of fibreglass can be seen on the sides. 
A multiple belt is actually V-belts joined together.

Transmitted power is the same, but multiple belts are 100% in set and do not oscillate.

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

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