Description
Narrow V-belts, section SPZ (9.7 × 8 mm, width × height), made to DIN 7753 / ISO 4184: for the same width they transmit more power than classic sections and allow more compact drives. Available in 66 lengths.
- SectionSPZ
- Width × height9.7 × 8 mm
- Lengthsfrom 587 to 3550 mm
- Sizes66
Features
- Trapezoidal flanks that wedge into the pulley groove: more tension, more grip
- Taller, narrower profile than classic belts: more power per belt and higher belt speeds
- High-strength tension cords embedded in the compound, for minimal stretch over time
- Quiet running and absorption of jolts at start-up
- They slip if the machine jams, protecting the motor and drive components
Typical applications
Operating conditions
| Section | SPZ (9.7 × 8 mm) |
|---|---|
| Standard | DIN 7753 / ISO 4184 |
| Lengths | from 587 to 3550 mm (pitch length Ld) |
| Belt speed | Up to about 40 m/s |
| Ambient temperature | Approximately -30 to +70 °C |
| Pulleys | With a groove for section SPZ: many DIN 2211 pulleys accept both the classic section and the corresponding narrow one (Z/SPZ, A/SPA, B/SPB), but check the groove profile |
| Environment | Dry and clean: oils, greases and solvents damage the compound |
Advantages
- More power per belt: fewer belts or narrower pulleys
- Higher belt speeds than classic belts
- More compact, lighter drives
Limitations
- Needs retensioning after running-in and periodic checks
- With several belts in parallel, they must all be replaced together
- Does not tolerate oils, excessive heat or worn pulleys
How to read the size
In narrow sections the number is the pitch length (Ld) in millimetres: SPZ 587 = 587 mm measured on the pitch line of the belt.
Technician's tipThe code is printed on the back of the old belt: if it is illegible, measure the belt with a tape measure run at half the belt height, or send us a photo. On multi-belt drives fit new belts that are all identical: a new belt next to a worn one does all the work and does not last long.
Speeds and temperatures are indicative values for rubber V-belts: for critical drives, ask us for a calculation.
Available codes and sizes (66)Click a code to select it on this page.
| Code | Price |
|---|---|
| 587 | 4.39 |
| 630 | 4.39 |
| 637 | 4.39 |
| 687 | 4.39 |
| 750 | 4.39 |
| 762 | 4.39 |
| 780 | 4.39 |
| 787 | 4.39 |
| 800 | 4.39 |
| 812 | 4.76 |
| 825 | 4.76 |
| 837 | 4.76 |
| 862 | 4.76 |
| 887 | 4.76 |
| 900 | 4.76 |
| 912 | 4.76 |
| 950 | 4.76 |
| 987 | 4.76 |
| 1000 | 5.73 |
| 1012 | 5.73 |
| 1024 | 5.73 |
| 1047 | 5.73 |
| 1112 | 5.73 |
| 1120 | 5.73 |
| 1137 | 6.10 |
| 1162 | 6.10 |
| 1180 | 6.10 |
| 1187 | 6.34 |
| 1202 | 6.34 |
| 1212 | 6.34 |
| 1237 | 6.34 |
| 1250 | 6.34 |
| 1262 | 6.95 |
| 1270 | 6.95 |
| 1287 | 6.95 |
| 1320 | 6.95 |
| 1337 | 7.44 |
| 1347 | 7.44 |
| 1387 | 7.44 |
| 1400 | 7.44 |
| 1412 | 7.81 |
| 1450 | 7.81 |
| 1462 | 7.81 |
| 1487 | 7.81 |
| 1500 | 7.81 |
| 1512 | 8.42 |
| 1537 | 8.42 |
| 1562 | 8.42 |
| 1600 | 9.03 |
| 1612 | 9.03 |
| 1637 | 9.03 |
| 1687 | 9.03 |
| 1762 | 9.27 |
| 1787 | 9.27 |
| 1800 | 9.27 |
| 1900 | 10.13 |
| 2000 | 10.13 |
| 2037 | 10.86 |
| 2120 | 10.86 |
| 2137 | 10.86 |
| 2187 | 10.86 |
| 2257 | 12.08 |
| 2360 | 12.08 |
| 2500 | 12.81 |
| 3350 | 17.45 |
| 3550 | 17.45 |
