Technical Parameters Basic Information Brand: Kollmorgen (Danaher Motion) Model No.: AKM22C-ACS2GBB2 Motor Type: 3-Phase Permanent Magnet Synchronous Brushless Servo Motor Frame Size: AKM22, 58mm IEC standard flange (NEMA23 equivalent) Winding Code: C (High voltage winding, rated 640 VDC bus) Feedback: ACS = 2-pole analog inductive resolver Shaft Code: 2 = φ20mm standard keyed shaft Connector Code: G = Dual straight fixed M23 SpeedTec connectors Suffix B2: Integrated 24VDC holding brake + shaft seal washdown version Pole Pairs: 3 Net Weight: 1.46 kg (with brake) Electrical Performance (640VDC Bus) Rated Continuous Power (Pn): 0.57 kW Max Mechanical Speed: 8000 rpm Standstill Continuous Stall Torque (Mo): 0.84 N·m Rated Continuous Torque (Mn): 0.68 N·m Standstill RMS Current (Iorms): 1.39 Arms Peak Torque (Mmax): 2.10 N·m Peak RMS Current (Imax): 4.17 Arms Torque Constant (Kt): 0.60 N·m/Arms Back EMF Constant (Ke): 0.30 Vrms/(rad/s) Line-Line Winding Resistance (Rm @25°C): 11.8 Ω Line-Line Inductance (Lm): 3.75 mH Rotor Moment of Inertia (J): 0.0161 kg·cm² Electrical Time Constant: 0.32 ms Built-in Brake Electrical Specs Brake Nominal Voltage: 24 VDC Static Holding Torque: 1.2 N·m Brake Power Consumption: 36 W Brake Release Time: ~110 ms Brake Type: Spring-applied fail-safe static holding brake (not for dynamic braking) Mechanical & Environmental Specifications Shaft Dimension: φ20mm keyed shaft, standard DIN keyway Protection Grade: IP65 housing/flange; shaft with shaft seal IP65 washdown Insulation Class: Class F, maximum winding temperature 155°C Thermal Protection: Built-in PTC thermal sensor embedded in stator windings Operating Ambient Temperature: -20°C ~ +40°C Storage Temperature: -40°C ~ +85°C Vibration Compliance: EN 60034-14 Mounting Standard: IEC IM B5 flange mounting, j6 pilot tolerance N per DIN42955 Bearing L10 Service Life: 20,000 hours under rated continuous load Certifications: CE, UL Listed, EN60034-1, EN60034-5