V-Belts – Procedure for Belt Indentification

What V-belt do I have? We have prepared a guide to identify V-belts. Marking on a broken belt is not always visible.

Following Steps

• Step 2 – What Type of V-Belt Are You Looking for?
• Step 3 – What Is the V-Belt Width – respectively, What Is the V-Belt Profile?
• Step 4 – What Is the V-Belt Length?
• More Tips for V-Belt Identification

Previous Step

• Step 1 – What Sort of Belt Do You Have?

Step 2
What Type of V-Belt Are You Looking for?

Classic sheathed belt

Raw-edge cogged V-belt

Variable speed belt = wide V-belt

Multiple V-belt = poly-V-belt

Step 3
What Is the V-Belt Width – respectively, What Is the V-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 16.3×13)...

... or e.g. 10 mm (belt type 17/B with a measurement of 17×10).

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

Step 4
What Is the V-Belt Length?

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

Then measure the length of the string.

V-Belt Lengths

• Li – inner length measured by the inside surface
• La – outer length measured by the outside surface
• Ld – working length

More Tips for V-Belt 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.

Documents for Download

Drive Belts

TYMA CZ Catalogue

Czech and English (pdf 4.54 MB)

Download