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| SKU | 9004-2131 |
|---|---|
| Weight | 2.600000 |
| Length (inch) | 135 |
| Length Type | Outside Circumference |
| Top Belt Width per strand (inch) | 0.88 |
| Nominal Thickness (inch) | 0.53 |
C – The C stands for a “C” section v-belt. This is considered a “Classic” v-belt style that has a top width of 7/8 (0.875) inches and a thickness of 17/32 (0.531) inches.
131– 131 inches is the inside circumference of the belt. For C-section v-belts, the outside circumference is found by adding 4 inches to the inside length of the belt. So, the outside circumference of the C131 belt is 135 inches (131+4).
Dimensions:
| Length (inch) | 135 |
|---|---|
| Length (mm) | 3429 |
| Length Type | Outside Circumference |
| Top Belt Width per strand (inch) | 0.88 |
|---|---|
| Top Belt Width per strand (mm) | 22 |
| Nominal Thickness (inch) | 0.53 |
| Nominal Thickness (mm) | 13 |
Design:
- Flex-Weave Cover – The Gates C131 v-belt is a wrapped belt that features a patented single layer fabric construction for longer cover life. The cover protects the belt core from oil dirt and heat. The wrapped cover also makes the belt suitable for clutching applications.
- Flex-Bonded Cords – The Hi-Power II belt line utilizes a proprietary core material blend that strongly bonds the polyester cords to the body of the belt, resulting in uniform load distribution and absorption of bending stress without cord deterioration.
- Gates Curves – The belt cross-section has been optimized to provide proper cord support and full contact with the pulley to provide uniform loading, uniform wear, and increased belt life.

Recommended Applications:
Matching / Multi-Belt Drives:
Part of the V80 Matching System - Gates Hi-Power II C131 v-belts can be used individually in a single vbelt drive or can be used in sets of 2 or more belts for higher horsepower applications. All belts in a multiple belt drive must be within a certain length tolerance in order for the belts to work together to provide the full design horsepower. In the past, manufacturing tolerances were wider and each belt was assigned a match number that indicated its exact length within the manufacturing tolerance. Gates invested heavily to reduce manufacturing tolerances. The result was the V80 matching system that ensures that every C131 belt can be used in a matched set, regardless of batch or lot. An alternative to using a set of individual belts is to use a joined or banded belt such as the Gates C-Section Hi-Power II PowerBand belt.
Requirements Met:
RMA oil and heat resistant standards.
RMA static conductivity requirements.
Similar Sizes:
Next Size Shorter: C130 (134 inch length)
Next Size Longer: C132 (136 inch length)
Next Size Narrower: B132 (Note: Belt will sit lower in the pulley, so a shorter belt might be needed)
Next Size Wider: none (Note: Belt will sit higher in the pulley, so a longer belt might be needed)
Same Size – Different Product Line:
| Part Number | Price | Horsepower Rating (1) on a 9” Pulley | Horsepower Rating (1) on a 7” Pulley | Shock Load | Backside Idler | Clutching |
|---|---|---|---|---|---|---|
| Gates C131 | $69.63 | 19.3 | Not Suitable | Good | Not Ideal | Good |
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(1) Horsepower rating calculated using Gates Design Flex software for a single belt at 1750 rpm and a 1:1 speed ratio on a 9” pulley
(2) Horsepower rating calculated using Gates Design Flex software for a single belt at 1750 rpm and a 1:1 speed ratio on a 7” pulley
Multi-Duty Sheave or Pulley (Fixed diameter for single or multi belt drives)
SVS Adjustable Speed Sheave or Pulley (Adjustable pitch diameter for multi belt drives)
- AC Delco C131 fan belt
- Balflex Classic C131
- Bando Power King C131
- Bestorq Wrapped C131
- Browning Super Gripbelt C131
- Carlisle Super II C131
- Continental C131 V-Belt
- ContiTech (Conti) C131
- Dayco Gold Label AP55
- Dayton C131 fan belt
- Dodge AP55
- Dunlop C131
- Fenner Classic C131
- Goodrich C131 vbelt
- Goodyear Hy-T Plus C131
- Grainger 3GWR3
- Hutchinson Conventional Wrapped C131
- Jason Industrial Unimatch Multi-Plus C131
- Maska Classical VBC131
- Mitsuboshi Red Label C131
- Optibelt VB C131
- Pirelli C131 veebelt
- Pix C131 vbelt
- TB Woods Conventional C131
- Thermoid Prime Mover C131
- Thermoid Select C131