YASKAWA ELECTRIC SGMG-05A2AB AC Servo Motor
November 05, 2026

YASKAWA ELECTRIC SGMG-05A2AB AC Servo Motor

YASKAWA SGMG-05A2AB Sigma II 0.45kW 1500rpm medium inertia AC servo motor without brake matched with SGDB-05ADG for CNC machine spare replacement.

Description

YASKAWA ELECTRIC SGMG-05A2AB AC Servo Motor
Serial No: B0074E047920037

Overview

The YASKAWA ELECTRIC SGMG-05A2AB is a medium-inertia AC servo motor from the legacy Yaskawa SGMG Sigma II series. The serial string B0074E047920037 is the individual motor serial number, not part of the catalog model. Rated power is 0.45 kW, 200 V class, rated speed 1500 rpm. It is fitted with an incremental encoder, straight shaft, no brake. This motor is matched with the SGDB-05ADG servo drive and widely used on CNC machine tools, grinders, cutting equipment and automation machinery. This series is end-of-life, only for spare replacement of existing installed machines.

Features

The YASKAWA ELECTRIC SGMG-05A2AB adopts medium rotor inertia, suitable for loads requiring stable low-speed running and good positioning repeatability.SGMG-05A2AB has separate power connector and encoder connector, incremental encoder feedback. Standard version without holding brake; brake variant is SGMG-05A2ABC. Robust housing, high overload capacity, well-known for stable performance on CNC equipment. Direct drop-in replacement requires the full model SGMG-05A2AB; serial number B0074E047920037 is for traceability only.

Specs

Device Type: AC Servo Motor Model: YASKAWA SGMG-05A2AB Serial: B0074E047920037 Brand: Yaskawa Electric Series: SGMG Sigma II Rated Output: 0.45 kW Rated Voltage: 200 V AC 3-phase Rated Speed: 1500 rpm Rated Torque: 2.84 N·m Rated Current: 3.8 A Encoder: Incremental encoder Shaft: Straight shaft, no keyway Brake: None Matching Drive: SGDB-05ADG Mounting: Flange mount Operating Temperature: 0 ~ +40°C Status: Obsolete, discontinued production

Principle

The YASKAWA ELECTRIC SGMG-05A2AB permanent magnet synchronous servo motor receives three-phase current from the SGDB servo amplifier. The encoder feeds back rotor position and speed to the drive, forming closed-loop vector control. The drive adjusts current output to maintain precise speed, position and torque commands for machine axis motion.

Applications

The YASKAWA ELECTRIC SGMG-05A2AB is used for feed axes of CNC lathes, machining centers, grinders, special automation machines and packaging equipment. The YASKAWA ELECTRIC SGMG-05A2AB is stocked as spare part for legacy machine maintenance and axis motor replacement. For new projects, Sigma-7 SGM7G series is the modern upgrade alternative.


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