Product number
The Spann-Box® Type 1 as a belt tensioner is available with various profile shapes: cylindrical, crowned, for flat belts, V-belts according to DIN 2215, or round belts. The optical control indicator signals adjustment needs in a timely manner.
It is offered in three different versions, which primarily differ in the mounting position of the tensioning rollers. The basic construction is identical in all versions. Special and stainless steel versions are available upon request.
Type SR-O: The belt runs above the tensioner and features a roller width of 53 mm.
| Enclosure material | Steel, KTL-coated |
| Clamping path (mm) | 40 |
| Guide type | tensioning roller |
| Clamping force according to number of springs (N) | 132 - 60 |
| Clamping force according to number of springs (N) | 264 - 120 |
| Clamping force according to number of springs (N) | 396 - 180 |
| Case shape | short casing |
| Suitable mounting brackets | 281090001 |
| Suitable mounting brackets | 281090029 |
| Suitable mounting brackets | 281090092 |
| Roll width (mm) | 53.0 |
Belt tensioner Spann-Box® size 1 type SR-O
Robust belt tensioner with roller, for round belts and V-belts according to DIN 2215 or flat belts
Matching belt
tensioning force
Roll vshape
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Product number
The Spann-Box® Type 1 as a belt tensioner is available with various profile shapes: cylindrical, crowned, for flat belts, V-belts according to DIN 2215, or round belts. The optical control indicator signals adjustment needs in a timely manner.
It is offered in three different versions, which primarily differ in the mounting position of the tensioning rollers. The basic construction is identical in all versions. Special and stainless steel versions are available upon request.
Type SR-O: The belt runs above the tensioner and features a roller width of 53 mm.
| Enclosure material | Steel, KTL-coated |
| Clamping path (mm) | 40 |
| Guide type | tensioning roller |
| Clamping force according to number of springs (N) | 132 - 60 |
| Clamping force according to number of springs (N) | 264 - 120 |
| Clamping force according to number of springs (N) | 396 - 180 |
| Case shape | short casing |
| Suitable mounting brackets | 281090001 |
| Suitable mounting brackets | 281090029 |
| Suitable mounting brackets | 281090092 |
| Roll width (mm) | 53.0 |
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