Product Description
Carlisle Super Blue Ribbon “3V” V-Belt
Available in Smooth & Cogged — Manufactured in Fulton, IL by Timken/Carlisle
The Carlisle Super Blue Ribbon “3V” section V-belt features a 3/8″ top width × 5/16″ depth cross-section (ANSI/RMA 3V narrow wedge) and is available in both Smooth and Cogged profiles. The 3V narrow section delivers higher horsepower per belt than classical A or B sections thanks to its deeper wedge angle, making it the go-to choice for industrial drives, HVAC systems, and high-speed applications across the Permian Basin and beyond.
Smooth (Wrapped) — “3V” Prefix: Traditional wrapped construction with heavy-duty cover fabric. The fabric wrap provides excellent grip and quiet operation. Ideal for standard industrial drives where smooth running and long belt life are the priority. Best suited for sheave diameters 3.0″ and above.
Cogged (Notched) — “3VX” Prefix: Raw-edge cogged construction with precision-molded notches on the underside. Provides superior flexibility around small sheaves, cooler running temperatures, and up to 30%% greater efficiency on small-diameter pulleys compared to smooth belts. Recommended for sheave diameters under 3.0″ or variable-speed drives. Minimum sheave OD: 2.20″.
Engineering Specifications:
- Cross Section: 3/8″ - 0.375in - 9.5mm (top width) × 5/16″ - 0.3125in - 7.9mm (depth) — ANSI/RMA 3V Narrow Wedge Section
- Speed Range: Up to 8,000 ft/min (higher than classical sections)
- Temperature Range: -30°F to +140°F continuous; +180°F intermittent
- Min. Sheave Pitch Diameter: 2.20″ (cogged 3VX); 2.65″ (smooth 3V recommended)
- Cord Material: Specially treated polyester for flex-fatigue resistance
- Cover: Oil, heat, and ozone resistant rubber compound
- Matching: Chek-Mate electronically matched for multi-belt drives
- Advantage: Narrower profile transmits more power per inch of sheave face than classical A or B section
Horsepower Ratings per Belt — 3V-Section (3/8″ × 5/16″) at 1,750 RPM
These ratings apply to all 3V and 3VX belts. For multi-belt drives, multiply by the number of belts.
| Sheave Pitch Dia. | HP per Belt |
|---|---|
| 2.65″ | 0.72 |
| 2.80″ | 0.87 |
| 3.00″ | 1.05 |
| 3.15″ | 1.16 |
| 3.35″ | 1.32 |
| 3.55″ | 1.46 |
| 3.65″ | 1.53 |
| 4.00″ | 1.73 |
| 4.12″ | 1.80 |
| 4.75″ | 2.10 |
| 5.00″ | 2.22 |
| 5.30″ | 2.36 |
| 6.00″ | 2.63 |
| 6.90″ | 2.93 |
| 7.10″ | 3.00 |
| 8.00″ | 3.28 |
| 9.00″ | 3.52 |
| 10.00″ | 3.70 |
| 10.60″ | 3.82 |
| 12.50″ | 4.10 |
1 HP ratings are for a single 3V-section belt at 1,750 RPM with 180° arc of contact. For multi-belt drives, multiply by number of belts and apply arc correction factor.
2 Cogged (3VX) belts provide approximately 15–20%% additional HP capacity on small sheaves due to improved flex.
Select your belt by part number. Smooth belts use the “3V” prefix. Cogged belts use the “3VX” prefix. Table scrolls — headers stay fixed.
| Part # | Type | Outside Length | Top Width | Depth | Weight |
|---|---|---|---|---|---|
| 3V — Smooth / Wrapped (17) | |||||
| 3V265 | Smooth | 26-1/2″ - 26.5in - 673.1mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.1 lb - 0.05kg |
| 3V315 | Smooth | 31-1/2″ - 31.5in - 800.1mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.12 lb - 0.05kg |
| 3V335 | Smooth | 33-1/2″ - 33.5in - 850.9mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.13 lb - 0.06kg |
| 3V355 | Smooth | 35-1/2″ - 35.5in - 901.7mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.13 lb - 0.06kg |
| 3V375 | Smooth | 37-1/2″ - 37.5in - 952.5mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.14 lb - 0.06kg |
| 3V450 | Smooth | 45″ - 45.0in - 1143.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.17 lb - 0.08kg |
| 3V475 | Smooth | 47-1/2″ - 47.5in - 1206.5mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.18 lb - 0.08kg |
| 3V560 | Smooth | 56″ - 56.0in - 1422.4mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.21 lb - 0.10kg |
| 3V630 | Smooth | 63″ - 63.0in - 1600.2mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.24 lb - 0.11kg |
| 3V800 | Smooth | 80″ - 80.0in - 2032.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.3 lb - 0.14kg |
| 3V850 | Smooth | 85″ - 85.0in - 2159.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.32 lb - 0.15kg |
| 3V900 | Smooth | 90″ - 90.0in - 2286.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.34 lb - 0.15kg |
| 3V1000 | Smooth | 100″ - 100.0in - 2540.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.38 lb - 0.17kg |
| 3V1060 | Smooth | 106″ - 106.0in - 2692.4mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.4 lb - 0.18kg |
| 3V1250 | Smooth | 125″ - 125.0in - 3175.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.47 lb - 0.21kg |
| 3V1320 | Smooth | 132″ - 132.0in - 3352.8mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.5 lb - 0.23kg |
| 3V1400 | Smooth | 140″ - 140.0in - 3556.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.53 lb - 0.24kg |
| 3VX — Cogged / Notched (44) | |||||
| 3VX250 | Cogged | 25″ - 25.0in - 635.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.078 lb - 0.04kg |
| 3VX265 | Cogged | 26-1/2″ - 26.5in - 673.1mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.083 lb - 0.04kg |
| 3VX280 | Cogged | 28″ - 28.0in - 711.2mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.088 lb - 0.04kg |
| 3VX300 | Cogged | 30″ - 30.0in - 762.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.094 lb - 0.04kg |
| 3VX310 | Cogged | 31″ - 31.0in - 787.4mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.098 lb - 0.04kg |
| 3VX315 | Cogged | 31-1/2″ - 31.5in - 800.1mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.099 lb - 0.04kg |
| 3VX335 | Cogged | 33-1/2″ - 33.5in - 850.9mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.104 lb - 0.05kg |
| 3VX355 | Cogged | 35-1/2″ - 35.5in - 901.7mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.111 lb - 0.05kg |
| 3VX365 | Cogged | 36-1/2″ - 36.5in - 927.1mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.114 lb - 0.05kg |
| 3VX375 | Cogged | 37-1/2″ - 37.5in - 952.5mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.117 lb - 0.05kg |
| 3VX400 | Cogged | 40″ - 40.0in - 1016.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.125 lb - 0.06kg |
| 3VX415 | Cogged | 41-1/2″ - 41.5in - 1054.1mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.13 lb - 0.06kg |
| 3VX425 | Cogged | 42-1/2″ - 42.5in - 1079.5mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.133 lb - 0.06kg |
| 3VX450 | Cogged | 45″ - 45.0in - 1143.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.141 lb - 0.06kg |
| 3VX475 | Cogged | 47-1/2″ - 47.5in - 1206.5mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.144 lb - 0.07kg |
| 3VX500 | Cogged | 50″ - 50.0in - 1270.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.157 lb - 0.07kg |
| 3VX530 | Cogged | 53″ - 53.0in - 1346.2mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.166 lb - 0.08kg |
| 3VX540 | Cogged | 54″ - 54.0in - 1371.6mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.233 lb - 0.11kg |
| 3VX550 | Cogged | 55″ - 55.0in - 1397.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.173 lb - 0.08kg |
| 3VX560 | Cogged | 56″ - 56.0in - 1422.4mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.175 lb - 0.08kg |
| 3VX580 | Cogged | 58″ - 58.0in - 1473.2mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.181 lb - 0.08kg |
| 3VX590 | Cogged | 59″ - 59.0in - 1498.6mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.185 lb - 0.08kg |
| 3VX600 | Cogged | 60″ - 60.0in - 1524.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.188 lb - 0.09kg |
| 3VX630 | Cogged | 63″ - 63.0in - 1600.2mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.197 lb - 0.09kg |
| 3VX650 | Cogged | 65″ - 65.0in - 1651.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.204 lb - 0.09kg |
| 3VX670 | Cogged | 67″ - 67.0in - 1701.8mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.21 lb - 0.10kg |
| 3VX690 | Cogged | 69″ - 69.0in - 1752.6mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.216 lb - 0.10kg |
| 3VX710 | Cogged | 71″ - 71.0in - 1803.4mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.223 lb - 0.10kg |
| 3VX750 | Cogged | 75″ - 75.0in - 1905.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.234 lb - 0.11kg |
| 3VX800 | Cogged | 80″ - 80.0in - 2032.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.25 lb - 0.11kg |
| 3VX820 | Cogged | 82″ - 82.0in - 2082.8mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.352 lb - 0.16kg |
| 3VX850 | Cogged | 85″ - 85.0in - 2159.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.266 lb - 0.12kg |
| 3VX900 | Cogged | 90″ - 90.0in - 2286.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.282 lb - 0.13kg |
| 3VX950 | Cogged | 95″ - 95.0in - 2413.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.297 lb - 0.13kg |
| 3VX1000 | Cogged | 100″ - 100.0in - 2540.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.313 lb - 0.14kg |
| 3VX1027 | Cogged | 102-11/16″ - 102.7in - 2608.6mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.321 lb - 0.15kg |
| 3VX1060 | Cogged | 106″ - 106.0in - 2692.4mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.332 lb - 0.15kg |
| 3VX1120 | Cogged | 112″ - 112.0in - 2844.8mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.351 lb - 0.16kg |
| 3VX1180 | Cogged | 118″ - 118.0in - 2997.2mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.369 lb - 0.17kg |
| 3VX1250 | Cogged | 125″ - 125.0in - 3175.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.392 lb - 0.18kg |
| 3VX1280 | Cogged | 128″ - 128.0in - 3251.2mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.401 lb - 0.18kg |
| 3VX1320 | Cogged | 132″ - 132.0in - 3352.8mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.413 lb - 0.19kg |
| 3VX1400 | Cogged | 140″ - 140.0in - 3556.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.439 lb - 0.20kg |
| 3VX1500 | Cogged | 150″ - 150.0in - 3810.0mm | 3/8″ - 0.375in - 9.5mm | 5/16″ - 0.3125in - 7.9mm | 0.47 lb - 0.21kg |
1 All dimensions follow the Lambear tri-format standard: Imperial fraction – Decimal inches – Metric (mm).
2 3V belts are measured by outside circumference (O.C.), not inside length.
🔧 3V Belt Length Calculator
Enter your sheave diameters and center distance to calculate the correct 3V-belt size. We’ll recommend the closest belt from our inventory.
Formula: Belt Length = 2C + 1.57(D + d) + (D − d)² ⁄ 4C
Where C = center distance, D = large sheave pitch dia., d = small sheave pitch dia.
3V-section pitch diameter ≈ sheave O.D. − 0.1″.
Tip: If the calculated size falls between two belt numbers, choose the next size up and adjust the motor mount to increase center distance for proper tension.
