My CNC has a Nema 34 stepper for the Z axis from Sanyo Denki. The part number on the stepper is SH2861-5142.
In the catalog there is a SH2861-5141, but the mH inductance is 3.7 which would be a crazy voltage.
There is a SH2861-5241, but the current 6a instead of the 4a on the stepper.
I can't find an email or tech support phone number to follow up on it.
The CNC was built in late 2019.
Anybody have a suggestion?

Steve.