The Omron R88MK5K020CS2 is a G5-series servo motor delivering 23.9 Nm continuous torque at 2000 min-1, drawing 13 A rated current from a 323–528 V supply. That torque class — roughly 24 Nm — suits direct-drive applications on indexing tables, rotary knife stations, or medium-load conveyors where you need the holding torque at zero speed without a gearbox. The 176 mm square frame and 239 mm overall length fit standard NEMA 56C or similar bolt patterns, though verify the pilot diameter against your existing mount.
What the ratings mean for fit
The 23.9 Nm torque is the continuous stall rating at rated speed — not peak. For acceleration or intermittent overload, expect the drive to supply up to roughly 300% for short durations, but the motor's thermal limit is set by that 13 A continuous current. The 2000 min-1 base speed is standard for a medium-inertia servo; if your application needs 3000 min-1, this motor requires field weakening or a different winding. The 323–528 V input range covers 400 VAC and 480 VAC three-phase systems common in industrial plants — no transformer needed for either nominal voltage.
The 239 mm width is the motor body length including the rear encoder housing — not the face-mount pilot diameter. The 176 mm square frame is the stator housing cross-section. When panel-mounting, allow clearance for the power and feedback connectors on the rear face; typical G5 motors use a round MS-style connector for power and a D-sub for the encoder. The shaft is keyed per the G5 standard — check the keyway width and depth against your coupling hub.