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Kollmorgen AKM11B-ANCNR-0
Product Series: Kollmorgen AKM® Series — AC Brushless Servo Motors
Product Brief: Compact 3-phase PMSM servo motor, frame 11 (55 × 55 mm IEC flange — NEMA 23 equivalent), B-winding = shortest stack for AKM11 (continuous stall torque ~0.16–0.21 Nm). Factory-fitted with 2-pole resolver (“C” in ANCNR-0 = resolver, N = smooth shaft, R = standard IP65 seals/connector), smooth shaft (no keyway), no holding brake. Compatible with AKD and S700 drives — auto motor ID via M23 connector resistors.
Detailed content
Frame Size Designation: AKM11 — Flange 55 mm × 55 mm, pilot Ø 40 mm, 4× M5 on 66 mm BCD
Shaft Diameter: 8 mm — Smooth shaft (no keyway)
Continuous Stall Torque (Tc @ 40 °C): ≈ 0.16 Nm (B-winding, AKM11B)
Peak Torque (Tp, < 3 s): ≈ 0.48 Nm
Rated Speed (Maximum): 6000 rpm (B-winding); continuous power speed ~3000 rpm
Rated Power (Continuous): ≈ 50 W
Rated Current (RMS, continuous): 0.64 A
Peak Current (RMS): 1.92 A
Torque Constant (Kt, line-line): ≈ 0.25 Nm/A
Back-EMF Constant (Ke, line-line): ≈ 16.5 V/krpm (RMS)
Winding Resistance (Line-Line, 25 °C): ≈ 12 Ω
Winding Inductance (Line-Line): ≈ 6.5 mH
Rotor Inertia (without brake): 0.011 × 10⁻⁴ kg·m² (0.011 kg·cm²)
Feedback Device: Resolver (2-pole, single-speed) — option “C” in ANCNR-0
Brake: None — “0” in last position
Thermal Sensor: KTY84-130 or PTC
Insulation Class: F (155 °C)
Protection Class: IP65 (with shaft seal)
Cooling: Natural convection
Operating Temperature (Ambient): 0 °C to +40 °C rated; –20 °C to +55 °C with derating
Housing Material: Black painted steel lamination stack; aluminum alloy end bells; NdFeB magnets
Connector Type: Rotatable M16 or M23 (speedTec) — feedback+pins integrated per AKM micro-frame config
Weight (approx.): ≈ 0.65 kg
Compliance: cURus, CE, RoHS
Applicable Industries: Small pick-and-place heads, electronic component inserters, lab automation stages, medical diagnostic instrument micro-axes, labeling machine indexers
Installation Requirements: Mount on machined 55 mm flange with 4× M5 bolts; use flexible coupling (keyless clamp) on smooth shaft; bond PE; connect shielded feedback cable — shield grounded at drive end only.
Usage Notes: AKM11B is lowest-torque AKM variant — verify load torque + friction + coupling inertia does not exceed continuous capability; resolver auto-commutated by AKD/S700; smooth shaft requires keyless locking device; thermal time constant ~5–8 min — motor reaches steady state quickly.
