The Omron R88M-K5K020H is a 5 kW Accurax G5 servo motor from the cylindrical-frame family, rated for 2000 rpm on a 3-phase 240 VAC supply. It carries an incremental encoder for position feedback and is specified without a brake — meaning the load must be held externally or by the drive's holding torque at standstill. The key and tap feature on the shaft allows positive mechanical coupling to the load, which is standard for direct-drive or belt-pulley applications where slip cannot be tolerated.
What the Ratings Mean for Fit
The 5 kW continuous rating at 2000 rpm sets the torque constant: roughly 23.9 Nm available at rated speed, which drives the sizing decision for the mating drive and the mechanical transmission. The 3-phase 240 VAC supply is the line input to the drive, not the motor winding voltage — the drive's DC bus and PWM output determine actual winding excitation. The incremental encoder (typically 2048 or 2500 PPR on G5 frames) gives the drive velocity and position feedback; it is not absolute, so the machine must home on power-up. The absence of an oil-tight seal means this motor is not rated for washdown or direct coolant splash — keep it in a dry, enclosed environment or add external shielding.