

Stocking Status: Typically in Stock - Ships in 1 business day.
- Buy 10 for $13.27 each and save 5%
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- Buy 50 for $12.57 each and save 10%
SKU | 9003-2048 |
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Weight | 0.550000 |
Length (inch) | 51 |
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.
48– 48 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 B48 belt is 51 inches (48+3).
Dimensions:
Length (inch) | 51 |
---|---|
Length (mm) | 1295 |
Length Type | Outside Circumference |
Top Belt Width per strand (inch) | 0.66 |
---|---|
Top Belt Width per strand (mm) | 17 |
Nominal Thickness (inch) | 0.41 |
Nominal Thickness (mm) | 10 |
Design:
- Flex-Weave Cover – The Gates B48 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 B48 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 B48 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: B47 (50 inch length)
Next Size Longer: B49 (52 inch length)
Next Size Narrower: A49 (Note: Belt will sit lower in the pulley, so a shorter belt might be needed)
Next Size Wider: C47 (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 |
---|---|---|---|---|---|---|
Gates B48 | $13.97 | 8.85 | Not Suitable | Good | Not Ideal | Good |
Gates 5L510 | $16.38 | 5.21 | 2.3 | Good | Good | |
Gates 6951 | $30.56 | 6.49 | 2.86 | Excellent | Good | Good |
Gates BX48 | $18.36 | 10 | 6.04 | Good | Not Ideal | Not Suitable |
Gates BP48 | $29.51 | 16.3 | Not Suitable | Excellent | Not Ideal | Good |
(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 B48 fan belt
- Balflex Classic B48
- Bando Power King B48
- Bestorq Wrapped B48
- Browning Super Gripbelt B48
- Carlisle Super II B48
- Continental B48 V-Belt
- ContiTech (Conti) B48
- Dayco Gold Label AP55
- Dayton B48 fan belt
- Dodge 107034 AP55
- Dunlop B48
- Fenner Classic B48
- Goodrich B48 vbelt
- Goodyear Hy-T Plus B48
- Grainger 3X474
- Hutchinson Conventional Wrapped B48
- Jason Industrial Unimatch Multi-Plus B48
- Maska Classical VBB48
- Mitsuboshi Red Label B48
- Optibelt VB B48
- Pirelli B48 veebelt
- Pix B48 vbelt
- TB Woods Conventional B48
- Thermoid Prime Mover B48
- Thermoid Select B48