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Stocking Status: Typically in Stock - Ships in 1 business day.

$20.07
  • Buy 10 for $19.07 each and save 5%
  • Buy 25 for $18.56 each and save 8%
  • Buy 50 for $18.06 each and save 10%
Gates B77 Belt is available to buy in increments of 1
SKU 9003-2077
Weight 0.900000
Length (inch) 80
Length Type Outside Circumference
Top Belt Width per strand (inch) 0.66
Nominal Thickness (inch) 0.41
Understanding the Part Number

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.

77– 77 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 B77 belt is 80 inches (77+3).

Specifications
Dimensions:
Length (inch) 80
Length (mm) 2032
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 B77 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.
Belt diagram with labeled parts
Recommended Applications:
Gates Hi-Power II B77 v-belts are high quality, heavy duty belts that can be used in a variety of industrial and agricultural power transmission applications. These belts are used in HVAC applications, conveyor systems, centrifugal pumps, air compressors, crushers, and more.
Matching / Multi-Belt Drives:

Part of the V80 Matching System - Gates Hi-Power II B77 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 B77 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 Products
Similar Sizes:

Next Size Shorter: B76 (79 inch length)

Next Size Longer: B78 (81 inch length)

 

Next Size Narrower: A78 (Note: Belt will sit lower in the pulley, so a shorter belt might be needed)

Next Size Wider: C76 (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 B77 $20.07 8.85 Not Suitable Good Not Ideal Good
Gates 5L800 $23.57 5.21 2.3 Good Good
Gates 6980 $43.98 6.49 2.86 Excellent Good Good
Gates BX77 $26.43 10 6.04 Good Not Ideal Not Suitable
Gates
(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
Compatible Pulleys / Sheaves:
Recommended Pulleys or Sheaves for Light Duty Applications

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 Applications

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)

Competitive Cross-Reference:
  • AC Delco B77 fan belt
  • Balflex Classic B77
  • Bando Power King B77
  • Bestorq Wrapped B77
  • Browning Super Gripbelt B77
  • Carlisle Super II B77
  • Continental B77 V-Belt
  • ContiTech (Conti) B77
  • Dayco Gold Label AP55
  • Dayton B77 fan belt
  • Dodge 107295 AP55
  • Dunlop B77
  • Fenner Classic B77
  • Goodrich B77 vbelt
  • Goodyear Hy-T Plus B77
  • Grainger 6A160
  • Hutchinson Conventional Wrapped B77
  • Jason Industrial Unimatch Multi-Plus B77
  • Maska Classical VBB77
  • Mitsuboshi Red Label B77
  • Optibelt VB B77
  • Pirelli B77 veebelt
  • Pix B77 vbelt
  • TB Woods Conventional B77
  • Thermoid Prime Mover B77
  • Thermoid Select B77