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SKU | 9003-2141 |
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Weight | 1.550000 |
Length (inch) | 144 |
Length Type | Outside Circumference |
Top Belt Width per strand (inch) | 0.66 |
Nominal Thickness (inch) | 0.41 |
B – The B stands for a “B” section v-belt. This is considered a “Classic” v-belt style that has a top width of 21/32 (0.656) inches, but is commonly referred to as a 5/8 (0.625) inch belt. The thickness of the belt is 13/32 (0.406) inches.
141– 141 inches is the inside circumference of the belt. For B-section v-belts, the outside circumference is found by adding 3 inches to the inside length of the belt. So, the outside circumference of the B141 belt is 144 inches (141+3).
Dimensions:
Length (inch) | 144 |
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Length (mm) | 3658 |
Length Type | Outside Circumference |
Top Belt Width per strand (inch) | 0.66 |
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Top Belt Width per strand (mm) | 17 |
Nominal Thickness (inch) | 0.41 |
Nominal Thickness (mm) | 10 |
Design:
- Flex-Weave Cover – The Gates B141 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 B141 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 B141 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 B-Section Hi-Power II PowerBand belt.
Requirements Met:
RMA oil and heat resistant standards.
RMA static conductivity requirements.
Similar Sizes:
Next Size Shorter: B140 (143 inch length)
Next Size Longer: B142 (145 inch length)
Next Size Narrower: none (Note: Belt will sit lower in the pulley, so a shorter belt might be needed)
Next Size Wider: C140 (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 6” Pulley | Horsepower Rating (1) on a 4” Pulley | Shock Load | Backside Idler | Clutching |
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Gates B141 | $38.85 | 8.85 | 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 6” 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 4” pulley
Light Duty Sheave or Pulley – Bored to Size (Fixed diameter for single or dual belt drives)
Light Duty Sheave or Pulley – Variable Pitch – Bored to Size (Adjustable pitch diameter for single or dual belt drives)
Light Duty Sheave or Pulley – QT Bushed – (Fixed diameter for single or dual belt drives)
Recommended Pulleys or Sheaves for Heavy Duty ApplicationsMulti-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 B141 fan belt
- Balflex Classic B141
- Bando Power King B141
- Bestorq Wrapped B141
- Browning Super Gripbelt B141
- Carlisle Super II B141
- Continental B141 V-Belt
- ContiTech (Conti) B141
- Dayco Gold Label AP55
- Dayton B141 fan belt
- Dodge AP55
- Dunlop B141
- Fenner Classic B141
- Goodrich B141 vbelt
- Goodyear Hy-T Plus B141
- Grainger 13V803
- Hutchinson Conventional Wrapped B141
- Jason Industrial Unimatch Multi-Plus B141
- Maska Classical VBB141
- Mitsuboshi Red Label B141
- Optibelt VB B141
- Pirelli B141 veebelt
- Pix B141 vbelt
- TB Woods Conventional B141
- Thermoid Prime Mover B141
- Thermoid Select B141