Rockwell Automation MPL-B540K-MK72AA Bulletin MPL - Low-Inertia Brushless Servo Motors Product, 460 V, Frame Size 5 = 165 mm (6.50 in.), Stack Length 40 = 101.6 mm(4.0in.), 4000 RPM, Multi-turn High-resolution Encoder (absolute feedback). Keyless Shaft Extension, SpeedTEC DIN Connector, RightAngle, 180 Degrees Rotatable (Quick Connect), No Brake, IEC Metric, Free Mounting Holes (Type FF)