8.3 N·m nominal, 27 N·m peak — what that envelope buys
The ILM1401M21A0000 is a PacDrive 3 integrated servo motor in the ILM family, sized as a 140 mm flange unit with 8.3 N·m nominal torque and 27 N·m peak stall, drawing 3.15 A nominal and up to 14.6 A Irms on demand — a 3.3× current headroom that drives the same torque ratio at the shaft, which is the figure a sizing engineer actually derates against when picking a machine cycle. Continuous stall torque sits at 8.5 N·m and continuous stall current at 3.2 A, so the motor sustains the nominal figure indefinitely at zero speed without stepping out — that is the rating to check against a stationary hold requirement, not the headline nominal. Nominal output power is 1300 W at 1500 rpm, placing this ILM in the mid-power slot of the PacDrive 3 integrated-drive family — suited to indexing tables, medium-format packaging axes, and small-format converting lines where the drive electronics are embedded in the motor housing rather than stacked in a cabinet.
Hiperface single-turn feedback and loop tuning inputs
Feedback is absolute single-turn SinCos Hiperface at 128 periods of resolution, which is the single-cable resolver-class interface PacDrive 3 controllers expect — the absolute position survives power cycles, so the axis does not need a homing routine on every restart. Back-EMF constant of 175 V/krpm at 20 °C and a torque constant of 2.65 N·m/A at 120 °C set the drive sizing math: every ampere the controller pushes out yields 2.65 N·m of torque at the warmed-up winding, and the induced voltage at the top of the speed range is what the DC bus has to absorb or regenerate. Stator resistance is 4.58 Ohm phase-to-phase at 20 °C, dropping to 3.18 Ohm phase-to-neutral at 120 °C, with 50 mH phase-to-phase inductance at 20 °C — both figures are the loop-tuning inputs the controller auto-identifies on first commission, and they belong on the FAT record next to the drive firmware version.
Shaft load envelope and the mechanical interface
The shaft is 24 mm diameter, 50 mm long, untapped, with no second shaft end and no holding brake — so any fail-safe holding has to come from the downstream mechanics or a separate brake on the gearbox input, not from this motor. Maximum radial load is 2210 N at 1000 rpm falling to 1760 N at 2000 rpm, with maximum axial force capped at 0.2 × Fr — when a pulley or pinion is mounted directly on the shaft, those numbers are the ones the mechanical designer has to clear, not the catalogue torque. Mounting is an international-standard flange with a 130 mm centring collar, four 11 mm mounting holes, and a 40 mm key width on a 254 mm-long body — the standard flange pattern means it drops onto the same footprint as other ILM 140-frame units and most third-party gearheads rated for that frame. Cooling is natural convection with IP65 sealing, so the housing has no fan to fail and no filter to clean — a fit for washdown-adjacent zones and sealed cabinets, but the continuous-torque figure assumes the heatsink path is the motor body itself, which means derating once the motor is buried inside an insulated enclosure.