Dietz/Stober S402SF0290D100K4 Gearmotor 60 RPM 2.2Kw 277/480V 3PH Hollow Shaft

Output Speed: 60 RPM Speed tested @480V 3PH. (Tag ratio does not match output RPM)
Shaft Diameter: 42mm Hollow Shaft
Output Torque: 235 Nm
Shaft Output (Left, Right or Inline): Hollow
Motor Brand and Model: Dietz FDR100LA/4Q
Motor Specs: 2.2Kw 1730 RPM 277/460V 3PH IEC 100L Metric Frame
Gearmotor is in working condition, tested @: 480V
Voltage motor is currently wired for:: 480V
Gearbox is set up with a manual handwheel that cranks the shaft.
Tag ratio 2.60:1 does not match output RPM 17.5-74, not sure if this is an adjustable  output.