Cogged (Raw-Edge) V-Belts
Raw-edge cogged belts replace the fabric wrap with exposed, molded sidewalls and a notched underside. The notches reduce bending stress, so the belt flexes more easily around small-diameter sheaves, builds less heat, and lasts longer on high-speed or compact drives. Raw edges also grip the sheave directly for better traction.
Cogged belts are direct upgrades for the matching wrapped section: an AX runs in the same sheave as an A, a BX in a B, and so on. The cogged-wedge 3VX, 5VX and 8VX belts are the notched versions of the narrow 3V, 5V and 8V wedge sections.
Profiles and Sizes We Stock
Cogged classical sections (AX/BX/CX) share sheaves with their wrapped counterparts. Cogged-wedge sections (3VX/5VX/8VX) run in narrow wedge sheaves.
| Profile / Section | Typical Length Range | Notes |
|---|---|---|
| AX Section | 17" – 199" | Cogged equivalent of A; tighter sheaves |
| BX Section | 23" – 301" | Most common cogged classical section |
| CX Section | 49" – 242" | Heavier cogged classical drives |
| 3VX Section | 20" – 150" | Cogged narrow wedge, high power density |
| 5VX Section | 32" – 212" | Cogged narrow wedge, larger drives |
| 8VX Section | 100" – 212" | Heaviest cogged wedge section |
Construction
These belts use a polyester (or, on premium lines, aramid) tensile cord in an oil- and heat-resistant raw-edge body with molded cogs. The exposed sidewalls and notched bottom are what give the belt its flex and cooler running compared with a wrapped belt.
If your drive uses standard sheaves and does not run especially hot or fast, a wrapped classical V-belt is the economical choice. Move to cogged when you have small sheaves, high speeds, backside idlers, or a history of belts cracking or running hot.
Typical Applications
Cogged raw-edge belts suit drives that punish a standard wrapped belt:
- Small-diameter or high-RPM sheave drives
- Clutching and variable-speed drives
- Lawn, garden and outdoor power equipment
- HVAC and pump drives running in high ambient heat
- Drives with backside idlers or serpentine routing
Selecting and Measuring
Order by section and length just like a wrapped belt. The cogged section matches the sheave: AX for an A sheave, BX for a B, CX for a C, and 3VX/5VX/8VX for the matching wedge sheave. The length is marked on the belt — an AX-marked number is an effective/outside length.
Replacing a wrapped belt with the matching cogged belt is a common, no-modification upgrade for drives that keep cooking belts. Give us the wrapped number you are running and we will quote the cogged equivalent.
Cross-References
D&D cogged belts are built to standard AX/BX/CX and 3VX/5VX/8VX dimensions, so they interchange with Gates Tri-Power and PowerPro, Continental, Dayco and Bando cogged belts of the same section and length.
Tell us the number on your current cogged belt — or the wrapped belt you want to upgrade — and we will return the matching D&D part.
Manufacturer names and part numbers are used for identification and reference only. Texas Belting & Supply and D&D Global are not affiliated with, sponsored by, or endorsed by Gates, Continental, Dayco, Bando, or any other manufacturer.
Frequently Asked Questions
What does the X mean in AX, BX or CX?
The X marks a cogged, raw-edge belt. AX, BX and CX are the notched versions of the A, B and C wrapped sections and run in the same sheaves. The notches let the belt flex around smaller pulleys, run cooler and last longer than the wrapped equivalent.
Can I replace a wrapped V-belt with a cogged one?
Usually yes. A cogged belt runs in the same sheave as its wrapped counterpart — an AX replaces an A, a BX replaces a B. The cogged belt is a common upgrade for drives with small sheaves, high speeds or heat problems. Match the section and length and confirm the length basis before ordering.
Do cogged belts last longer than wrapped belts?
On demanding drives, typically yes. The notched, raw-edge construction flexes with less heat build-up, which is the main thing that ages a belt on small-sheave or high-RPM drives. On an easy, large-sheave drive the difference is smaller and a wrapped belt may be the more economical choice.
Are 3VX and 5VX the same as 3V and 5V?
They run in the same narrow-wedge sheaves, but 3VX and 5VX are the cogged, raw-edge versions of the wrapped 3V and 5V belts. The cogged versions handle smaller sheave diameters and higher speeds. Match the section to the sheave and confirm the length.
Do cogged V-belts ship from Houston?
Yes. Stock AX, BX, CX, 3VX and 5VX sizes ship same-day from our Houston warehouse. Call (888) 203-2358 with the section and length if you do not see your size on the grid.
Need a cogged V-belt cross or a quote?
Houston warehouse — same-day shipping on stock items. Tell us the size or the part number you are replacing and we will confirm the cross.
Call (888) 203-2358
