The Omron R88M-K90010F-B is a 900 W Accurax G5 servo motor in a cylindrical frame, spinning at 1000 rpm on 3-phase 480 VAC. It carries an integral holding brake and an incremental encoder — no keyway or oil-tight seal. This is the variant with the brake engaged at rest, sized for vertical-axis or high-inertia loads where the motor must hold position when power is removed.
The 900 W continuous rating and 1000 rpm base speed match a moderate-torque, moderate-speed axis — think a conveyor drive, a rotary indexer, or a vertical lift where the brake holds the load. The 3-phase 480 VAC supply is standard for North American industrial panels; the incremental encoder gives position feedback for a servo drive with a commutation track, not absolute multiturn. No keyway means the load coupling must use a clamp-style hub or a shaft-mounted pulley with a setscrew flat. No oil-tight seal means this motor is not rated for direct washdown or gearbox oil mist — keep it in a dry, protected enclosure or a clean cabinet.