Determining traction sheave rim specifications
These are connected to the hub using fitting screws. Such rims are usually easy enough to specify if the following data is known:
- screw space a
- number of screws used
- the size of those screws
Chose on the left "Screw space"
How to determine screw space a
Measure from the middle of a screw to the middle of that adjacent in a straight line or remove both screws and measure from drill hole edge to drill hole edge in a straight line
How to determine the thread
| Thread | M10 | M12 | M14 | M16 | M18 | M20 |
| Width across flats old / new | 17 / 16 | 19 / 18 | 22 / 21 | 24 / 24 | 27 / 27 | 30 / 30 |