The output shaft dimensions can relatively easily be modified to suit your needs. However, there are manufacturing limitations to the range of dimensions that Parker can feasibly build to. Below is a chart of the standard dimensions for each family and frame size. The diameter can relatively easily be turned down, but larger diameters are significantly more difficult and typically require heavy customizations. Note that turning the shaft smaller than the standard diameter listed below may potentially decrease torque capability.
| Diameter | Length | |
| SM16 | 6.35 | 24.8 |
| SM230 | 6.35 | 19.8 |
| SM231 SM232 SM233 |
9.53 | 20.8 |
| BE16 | 6.35 | 24.8 |
| BE23 | 9.53 | 31.9 |
| BE34 | 12.7 | 30.3 |
| MPP092 | 16 | 40 |
| MPP100 | 19 | 40 |
| MPP115 | 24 | 50 |
| MPP142 | 28 | 60 |
| MPP190 | 38 | 80 |
| MPP270 | 48 | 110 |