TB Wood’s™ to Speed Selector Cross Reference for Direct Pulley Replacement: VC4040, VC5151
Click the table below to open/download as a pdf.
![compound-600x659](https://speedselector.com/wp-content/uploads/2024/05/compound-600x659-1-455x500.png)
![Compound-400x309](https://speedselector.com/wp-content/uploads/2024/05/Compound-400x309-1.png)
Key
Pulley Type
Spring 2 | Has 2 spring loaded movable faces. |
Spring 1 O | Has 1 spring loaded movable face at outer end, away from mounting shaft. |
Spring 1 I | Has 1 spring loaded movable face at inner end, near mounting shaft. |
Spring 1 O/I | Has 1 spring loaded movable face that can be located at either end. |
Control | Has one movable face at outer end, controlled by integrated handwheel. |
Control Sep. | Has one movable face at outer end, controlled by separate handwheel. |
Control 2 | Has two movable faces, controlled by integrated handwheel. |
Compound | Has two variable pitch grooves and mounts to a separate controller |
Bore Type
End | Mounted from 1 end of the pulley. |
Collet | Mounted from 1 end of the pulley by means of a collet. |
End 2 | Can be mounted from either end of the pulley. |
Thru | Can be mounted with shaft going entire way through the pulley. |
Controller | Mounted to a separate controller. |