Description
Below is a table listing our bobbins / diabolos. We offer three different types: T, U and V.
Check the diagrams below to determine which type you need. The list is sorted by the ØA dimension, in ascending order. You can sort the rollers by any dimension, in ascending or descending order, or by type. Just click on the column header.

*countersunk bore
#counter bore (14.5 x 6.0)
| Ref. No | ⌀A mm | ⌀B mm | ⌀R mm | L mm | Type |
|---|---|---|---|---|---|
| U11 | 4.5 | 2.2 | 3.5 | 25.0 | U |
| U18 | 6.0 | 2.0 | 3.5 | 10.5 | U |
| U16 | 6.5 | 3.1 | 5.4 | 19.0 | U |
| U42 | 8.0 | 3.0 | 5.0 | 10.0 | U |
| U36 | 8.2 | 4.0 | 6.2 | 10.5 | U |
| U37 | 10.8 | 3.2 | 6.8 | 20.0 | T |
| U32 | 12.0 | 6.0 | 11.5 | 12.0 | V |
| U33 | 12.0 | 6.0 | 10.4 | 20.0 | U |
| U34 | 15.0 | 7.5 | 10.4 | 20.0 | U |
| U27 | 15.0 | 4.0 | 8.0 | 15.0 | V |
| U29 | 15.2 | 4.0 | 9.0 | 21.0 | T |
| U35* | 20.0 | 6.3 | 10.0 | 20.0 | V |
| U25 | 20.0 | 6.3 | 10.0 | 25.0 | V |
| U25C* | 20.0 | 6.3 | 10.0 | 25.0 | V |
| U28 | 20.0 | 6.3 | 10.0 | 25.0 | U |
| U31 | 33.0 | 8.0 | 19.0 | 31.5 | T |
| U31L | 33.0 | 11.0 | 19.0 | 31.5 | T |
| U26# | 38.0 | 4.5 | 19.0 | 32.0 | T |
*countersunk bore
#counter bore (14.5 x 6.0)




