G5-series 1 kW-class rotor at 4.77 Nm
The R88MK1K530FBS2 sits in Omron's G5 servo-motor family as a 4.77 Nm, 3000 min⁻¹ rotor drawing 4.2 A — the spec line that actually decides the fit is the torque/speed pair, because it tells the panel builder which point on the drive's torque-speed envelope this particular motor is sized for. DC-bus operating window is 323 V to 528 V, which sets the compatible drive list: it expects an Omron G5-series amplifier that puts the intermediate rail in that band, and any retrofit that drops in a non-G5 drive needs that bus voltage verified against the rotor nameplate before energising.
Footprint and panel-side fit
Body envelope is 187 mm wide × 100 mm tall × 100 mm long, so the motor drops into a standard G5-family mounting footprint without re-machining the bracket — check the mating shaft and brake option on the existing machine before treating it as a direct dimension-for-dimension swap.
Sourcing posture for a phase-out servo
For a BOM line still calling out this code, the practical move is to quote against an RFQ through the independent channel — lot size, traceable Omron-fresh stock, and whether the available quantity covers the build or only the next MRO window are all confirmed at quote time. Price and lead-time move with the remaining channel inventory on an EOL rotor, so a single fixed figure does not survive the next sourcing cycle.