Industrial Classical V-Belt

Dimensions K M 3L 4L 5L
a (mm) 12.5 16.5 22.0 31.5 38.0
b (mm) 9.0 11.0 14.0 19.0 25.5
θ (º) 40 40 40 40 40

 

Min Pulley Diameter
A B C D E
75mm 125mm 200mm 300mm 450mm

 

 

Syandard Pulley Dimension
Belt Types de (mm) α° w (mm) k (mm) ko (mm) p (mm) f (mm)
A 71~100
101~125
126~up		 34
36
38		 9.2 4.5 8.0 15.0 10.0
B 125~160
161~200
201~up		 34
36
38		 12.5 5.5 9.5 19.0 12.5
C 200~250
251~315
316~up		 34
36
38		 16.9 7.0 12.0 25.5 17.0
D 355~450
451~up		 36
38		 24.6 9.5 15.5 37.0 24.0
E 500~630
631~up		 36
38		 28.7 12.7 19.3 44.5 29.0

 

As Sanwu's founded in the year 1946, where classical V-Belts was invented in the early 1920s which widely used in power transmitting. Classical V-Belts own the longest history in power transmission belts field which classified by their dimensions from A to E. Available in various width and thickness with pre-stretched polyester cord as well as fabric-wrapped construction assist in enhanced the flexibility and driving high forces with less tension of the belts. Mostly used in various industries, such as agriculture, ventilation, and industrial machinery.

Sanwu White Label which in comply with the requires of our National Standard (CNS 745 K4003) as well as with the features of Oil & Heat Resistance, our belts can run efficiently even under the condition of mild heat and oil.

Sanwu do provides Red Label as well with the features of Oil-resistance, Heat-resistances & Abrasion-resistance, our belts are suitable to be run at very high speed and a good transmitting efficiency also can be reached even they are operated at the temperature of 90°C.



  • Own various thickness and width.
  • Used in agriculture, ventilation, and industrial machinery.
  • Low maintenance requirement
  • In accordance with ISO 1813 Antistatic Requirement
  • Meets ISO 4184 Standards
  • Temperature resistances with -30 ~ 80 °C

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