Custom Made V-Belt Pulleys
Custom made V-belt pulleys are intended for all types of V-belts, even for banded V-belts in cases where, due to size, construction, material or other technical conditions, it is not possible to use standard V-belts of catalog dimensions. The same standards and conditions apply to the shape and dimensions of the V-grooves as for standard V-belt pulleys.
Special V-belt pulleys manufactured to drawing or specific requirements can be made from cast iron, steel or other materials, they can be cast, welded or completely machined.
V-Belt Pulley Types Overview
| Pulley Type | Description | Illustration |
|---|---|---|
Solid V-Belt Pulleys |
Solid pulleys are machined from solid material or manufactured as castings. They are suitable for use with small dimensions. |
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Solid V-Belt Pulleys with Weight Reduction |
Solid pulleys are machined from solid material or manufactured as castings. Design reduces weight, although the pulleys still have a compact shape. They are suitable for use with small and medium dimensions. |
 |
V-Belt Pulleys with Round or Shaped Holes |
Pulleys with shaped holes produced as castings are suitable for medium and large dimensions. Design with shaped holes reduces weight, although the pulleys still have a compact shape and are suitable even for high speeds. |
 |
V-Belt Pulleys with Lugs |
Pulleys with lugs are produced as castings and are suitable for medium to largest dimensions. Design with lugs significantly reduces weight. Caution – pulleys are only suitable up to a certain speed (most often up to 30 m/s). At higher speeds, the pulley may break and rupture. |
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Split V-Belt Pulleys |
Split pulleys are manufactured as castings. They are designed for gears where it is not possible to mount a conventional pulley. They are mainly used as complex large pulleys. |
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Special V-Belt Pulleys |
Special pulleys are manufactured as castings, workpieces or weldments. They are used in cases where it is not possible to use conventional constructions or their special design is required. These are most often complex medium to largest pulleys. |
 |
Pulleys Fields of Use
The custom V-belt pulleys are designed for all types and profiles of classic and narrow V-belts and banded V-belts in all industries.
They are used wherever the standard V-belt pulleys with Taper bush or solid hub pulleys cannot be used.
Pulleys Profile and Dimensions
| Profile | Dm [mm] |
α [°] |
B1 [mm] |
Bm [mm] |
E [mm] |
F [mm] |
C [mm] |
T [mm] |
|---|---|---|---|---|---|---|---|---|
| SPZ | (≤80) >80 | (38) 34 | 9.7 | 8.5 | 12.0 | 8 | 2.0 | 11.0 |
| SPA | (≤118) >118 | (38) 34 | 12.7 | 11.0 | 15.0 | 10 | 2.8 | 13.8 |
| SPB | (≤190) >190 | (38) 34 | 16.3 | 14.0 | 19.0 | 12 | 3.5 | 17.5 |
| SPC | (≤315) >315 | (38) 34 | 22.0 | 19.0 | 25.5 | 17 | 4.8 | 23.8 |
Crown width \(B\): \[B = {E^{(n-1)} + 2 \cdot F}\ {[mm]}\] where \(n\) is the number of grooves.
Other technical data for particular groove dimensions are to be found in the technical documentation.
Documents for Download
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Measuring Instruments
Our professional-quality special tools and measuring instruments will assist you in maintaining and fitting drive components.
Question about the Pulleys Category
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