Belt type BB hexagonal belts
Double-sided V-belts · 17mm wide · Runs in standard B section pulleys
BB hexagonal belts, also called double-V belts, have a V-profile on both the top and bottom, so they can
drive pulleys from either side. That lets one belt turn several pulleys in opposite directions on a
serpentine drive, which is why they’re used on combines, balers and other agricultural machinery, as
well as textile, food processing and specialist industrial machines. Search by the code on the old belt, such
as BB2500, and use the filters to narrow it down by length.
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Drives both sidesV-profile top and bottom grips pulleys on either face
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Serpentine drivesTurns pulleys in opposite directions with one belt
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Standard pulleysRuns in standard B section pulley grooves
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17mm wideApproximately 13mm deep across the full hexagonal profile
Choosing a BB hexagonal belt
Reading the codeA code like BB2500 gives the section (BB) and the length. Makers measure hexagonal belt lengths in different ways, so match the code on your old belt, or tell us the make and model of the machine.
PulleysA BB belt runs in standard B section grooves on both faces. If the pulleys are worn, the belt will sit too deep and wear quickly, so check the grooves when you replace it.
Is it hexagonal?A hexagonal belt has a V on both sides and looks six-sided in cross-section. A standard B section belt is only V-shaped underneath, so check both faces of the old belt.
Tip: on agricultural machinery, the machine’s part number is often the quickest way to find the right belt. Search for it, or call us with the make and model.
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Other sizesSee AA and CC hexagonal belts.
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Single-sided belt?See our B section V-belts.
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Still not sure?Call 020 8138 2848 with the code, measurements or machine details and we'll find the right belt.
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Buying for a business?Open a trade account for trade pricing on maintenance stock and repeat orders.
