What this motor is and what the ratings mean for fit
The Omron R88M1M7K515CS2 is a 1S Series servo motor rated for 47.8 Nm continuous torque at 1500 min⁻¹ output speed, drawing 22 A at its rated load. That torque figure — 47.8 Nm — is the continuous stall torque the motor can hold without overheating, so it directly sizes the motor to the load's inertia and friction torque. The 1500 min⁻¹ base speed means this motor is wound for medium-speed rotary applications (conveyors, rotary indexing tables, spindle drives) rather than high-speed spindles. The 22 A rated current is what the matching servo drive must supply continuously; a drive undersized on current will current-limit and lose position under load. The motor accepts a supply voltage range of 323 V to 528 V, so it can run on 400 VAC three-phase lines common in European and Asian industrial plants, as well as 480 VAC lines typical in North American installations. The 180 mm × 180 mm footprint and 295 mm overall length fit standard servo motor mounting patterns; check the output shaft and flange dimensions against the existing coupling and gearbox before ordering.