Various downhole motor assemblies for well size 3 1/2″～17 1/4″ with the following main dimension specifications. To see specific parameters, pls download the PDF file.

2-7／8 in 73 mm
3-1／2 in 89 mm
3-3／4 in 95 mm
4 in 102 mm
4-3／4 in 120 mm
6-1／2 in 165 mm
6-3／4 in 172 mm
7-1／4 in 185mm
7-3／4 in 197 mm
8 in 203 mm
8-1／2 in 216 mm
9-5／8 in 244 mm