power drive belt selection guide
The Right Belt For The Job.
Selecting the best belt for your power transmission system can be intimidating, but it doesn't have to be. Let us walk you through the basics.
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SHOP ALL BELTS NOW!V-Belts
V-Belts run your power drive system by way of friction, making them an extremely high-tension solution. Due to their relatively low cost and ease of installation, V-Belts are among the most commonly used belts for industrial applications. The V-Shape is specifically designed to fit into the pulley's sheave grooves, making slippage and failure far less likely than with a traditional flat belt and pulley systems.
V-BELT OPTIONSBanded V-Belts
When used in place of multiple V-Belts, Banded V-Belts improve your system’s performance with pulsating loads. By introducing a joint configuration, Banded V-Belts are far less likely to turn over, and belt replacement no longer requires the matching of multiple single bands.
BANDED V-BELT OPTIONSTiming Belts
When combined with toothed pulleys or sprockets, a timing-band helps your system operate with improved timing. Its toothed profile lends it a higher power density than other belts, allowing usage of smaller belts and pulleys in a comparable load.
TIMING BELT OPTIONSCLASSICAL V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: A14 = 16 inches (OC).
3L is an exception. Measure 3L’s outside length & multiply by 10. Example: 3L130 = 13 Inches |
|
| 3L | 12" - 75" |
| A/4L, B/5L | 15" - 312", 22" - 672" |
| C, D | 38" - 555", 67" - 665" |
| E | 108" - 428" |
Classical V-Belts:
Measured in inches. Part numbers go by belts inside circumference. To find this, measure outside length of belt and subtract.
- A/4L – Subtract 2
- B/5L – Subtract 3
- C – Subtract 4
- D – Subtract 5
- E – Subtract 6
CLASSICAL COGGED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: AX18 = 20 inches (OC). |
|
| AX | 19" - 182" |
| BX | 25" - 198" |
| CX | 51" - 304" |
Classical Cogged V-Belts:
Measured in inches. Part numbers go by belts inside circumference. To find this, measure outside length of belt and subtract. Marked by an X in part number.
- AX – Subtract 2
- BX – Subtract 3
- CX – Subtract 4
WEDGE V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 3V190 = 19 inches (OC). |
|
| 3V | 19" - 165" |
| 5V | 45" - 355" |
| 8V | 100" - 600" |
Wedge V-Belts:
Measured in inches. Part numbers go by belts outside circumference. To find part number, measure outside length of belt and multiply by 10.
WEDGE COGGED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 3VX240 = 24 inches (OC). |
|
| 3VX | 20.5" - 150" |
| 5VX | 31.5" - 200" |
| 8VX | 118" - 200" |
Wedge Cogged V-Belts:
Measured in inches. Part numbers go by belts outside circumference. To find part number, measure outside length of belt and multiply by 10. Marked by an X in part number.
METRIC V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: SPZ369 = 369 millimeters (OC). |
|
| SPZ | 369mm - 3550mm |
| SPA | 630mm - 5000mm |
| SPB | 1000mm - 9000mm |
| SPC | 1000mm - 12500mm |
Metric V-Belts:
Measured in millimeters. Part numbers go by belts outside circumference. To find this, measure outside length of belt in millimeters.
METRIC COGGED V-BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: XPZ562 = 562 millimeters (OC). |
|
| XPZ | 562mm - 4000mm |
| XPA | 630mm - 3750mm |
| XPB | 1000mm - 5000mm |
| XPC | 1800mm - 5300mm |
Metric Cogged V-Belts:
Measured in millimeters. Part numbers go by belts outside circumference. To find this, measure outside length of belt in millimeters.
DOUBLE ANGLED (HEX) V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: AA46 = 48 inches (OC). |
|
| AA | 48" - 202" |
| BB | 45" - 303" |
| CC | 79" - 304" |
Double Angled (Hex) V-Belts:
Measured in inches. Part numbers go by belts inside circumference. To find this, measure outside length of belt and subtract.
- AA – Subtract 2
- BB – Subtract 3
- CC – Subtract 4
ARAMID CORD DRY WRAPPED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 4LK200 = 20 inches (OC). | *K Indicates Aramid Cord | |
| 3LK | 20" - 50" |
| 4LK | 20" - 192" |
| 5LK | 25" - 397" |
Aramid Cord Dry Wrapped V-Belts:
Measured in inches. Part numbers go by belts inside circumference. To find part number, measure outside length of belt and multiply by 10.
VARIABLE SPEED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| VS | Call Or Check Online |
Variable Speed V-Belts:
Large quantities on hand. Call or check for availability.
AUTOMOTIVE V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 17245 = 24.77 inches (OC). | |
| 15 | 22.07" - 73.57" |
| 17 | 24.77" - 75.77" |
| 22 | 33.14" - 67.14" |
| 24 | 43.14" - 45.64" |
| 28 | 42.94" - 51.64" |
Automotive V-Belts:
Measured in inches. Part numbers go by belts outside circumference. To find this, measure outside length of belt.
CLASSICAL BANDED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: B48/02 = B48 with 2 ribs | *K Indicates Aramid Cord | ** Ribs available | |
| A | 44" - 135" |
| B | 51" - 363" |
| BK | 67" - 243" |
| C | 64" - 484" |
| D | 167" - 455" |
Classical Banded V-Belts:
Part numbers go by our Classical part number and the number of ribs. The numbers after the / shows the number of ribs.
- A’s – up to 20
- B’s & BK’s – up to 16
- C’s & D’s – up to 12
WEDGE BANDED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 3V475/04 = 3V475 with 4 ribs | *K Indicates Aramid Cord | ** Ribs available | |
| 3V, 3VK | 25" - 140" |
| 5V, 5VK | 50" - 450" |
| 8V, 8VK | 100" - 590" |
Wedge Banded V-Belts:
Part numbers go by our Wedge part number and the number of ribs. The numbers after the / shows the number of ribs.
- 3V’s & 3VK’s – up to 20
- 5V’s & 5VK’s – up to 16
- 8V’s & 8VK’s – up to 12
WEDGE COGGED BANDED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 3VX475/04 = 3VX475 with 4 ribs | *X Indicates cogged belt | ** Ribs available | |
| 3VX | 25" - 150" |
| 5VX | 45" - 200" |
Wedge Cogged Banded V-Belts:
Part numbers go by our Wedge Cogged part number and the number of ribs The numbers after the / shows the number of ribs.
- 3VX’s – up to 8
- 5VX’s – up to 12
METRIC BANDED V-BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: SPA1657/06 = SPA1657 with 4 ribs | * Ribs available | |
| SPA | 1657mm - 1732mm |
| SPB | 2180mm - 6700mm |
| SPC | 2240mm - 8000mm |
Metric Banded V-Belts:
Part numbers go by our Metric part number and the number of ribs. The numbers after the / shows the number of ribs.
- SPA’s – up to 20
- SPB’s – up to 16
- SPC’s – up to 12
V-RIBBED BANDED V-BELTS
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| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 130J6 = 13inch J series belt with 6 ribs |
|
| J | 13" - 92" |
| K | 31.25" - 101.75" |
| L | 24" - 189" |
| M | 90" - 198" |
V-Ribbed Banded V-Belts:
Measured in inches. Part numbers vary.
HTD TIMING BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 204-3M-15 = 204mm long, 3M pitch, 15mm
wide |
|
| 3M | 201mm - 3000mm |
| 5M | 200mm - 3800mm |
| 8M | 288mm - 4400mm |
| 14M | 826mm - 4578mm |
| 20M | 1360mm - 4380mm |
HTD Timing Belts:
Measured in millimeters. Part numbers go by the belts length (outside circumference), pitch, and width (cut to order).
TRAPEZOIDAL TOOTH TIMING BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 80XL100 = 8” long, XL pitch, 1” wide |
|
| MXL | 8.5" - 104.2" |
| XL | 8" - 90" |
| L | 9.8" - 114.8" |
| H | 14.5" - 170" |
| XH | 47.3" - 154" |
| XXH | 80" - 120" |
Trapezoidal Tooth Timing Belts:
Measured in inches. Part numbers go by belts length (outside circumference) multiplied by 10, pitch, and width (cut to order).
DOUBLE SIDED TIMING BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: D425-5M-15 = 425mm long, 5M pitch, 15mm wide | *Width cut to order |
|
| D3M | 435mm - 597mm |
| D5M | 425mm - 2525mm |
| D8M | 424mm - 3600mm |
| D14M | 1400mm - 3500mm |
| DXL | 20" - 30" |
| DL | 15" - 60" |
| DH | 27" - 170" |
Double Sided Timing Belts:
Measurements and part numbers are found the same way as their corresponding part number with a D at the beginning.
T-SERIES & AT-SERIES TIMING BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: T5-135-20 = 135mm
long, T5 pitch, 20mm wide | *Width cut to order |
|
| T2.5 | 120mm - 1295mm |
| T5 | 135mm - 4200mm |
| T10 | 160mm - 4280mm |
| T20 | Call for availability |
| AT5 | 280mm - 4000mm |
| AT10 | 600mm - 3950mm |
| AT20 | 1200mm - 1500mm |
T & AT-Series Timing Belts:
Measured in millimeters. Part numbers go by the belts length (outside circumference), pitch, and width (cut to order).
SUPER TORQUE TIMING BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: 10-S3M-219 = 219mm long, S3M pitch, 10mm wide | *Width cut to order |
|
| S2M | Call for availability |
| S3M | 219mm - 432mm |
| S4.5M | 225mm - 932mm |
| S5M | 255mm - 1900mm |
| S8M | 376mm - 3048mm |
| S14M | 1120mm - 3850mm |
Super Torque Timing Belts:
Measurements are found the same way as their corresponding part number. Length and width are reversed in part number.
OPEN-ENDED HTD TIMING BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: LL075L-100FT = 100ft long, L pitch,
3/4" wide | *Width cut to order |
|
| LL3M | Call for availability |
| LL5M | Call for availability |
| LL8M | Call for availability |
| LL14M | Call for availability |
Open-Ended HTD Timing Belts:
Measured in millimeters. Part numbers go by the belts pitch and width (comes in precut sizes). These belts are open ended and not formed together.
OPEN-ENDED TRAPEZOIDAL TIMING BELTS
| CROSS SECTION | LENGTHS ON HAND |
|---|---|
| Example: LL8M10-100FT = 100ft long, 8M pitch, 10mm wide | *Width cut to order |
|
| LL MXL | Call for availability |
| LL XL | Call for availability |
| LL L | Call for availability |
| LL H | Call for availability |
| LL XH | Call for availability |
Open-Ended Trapezoidal Timing Belts:
Measured in inches. Part numbers go by the belts pitch and width (comes in precut sizes). These belts are open ended and not formed together.
