Product Description:

The MKE098B-058-AG0-AUNN is an explosion-protected servo motor manufactured by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Designed for Zone-rated automation cells, it delivers controlled torque and speed to machine axes while meeting UL/CSA housing rules and operating in ambient temperatures from 0 to +40 °C. A plain shaft with a frontal centering hole and a DIN 332 DS thread transmits power, and a terminal box on the A-side routes the stator connections. This layout also supports clean cable routing and orderly integration with nearby machine hardware.

At a 60 K winding rise, the motor produces 12.0 Nm of continuous stall torque and draws 12.4 A of continuous current. When rapid indexing is required, the drive may supply up to 55.9 A RMS to reach a peak torque of 43.5 Nm. Mechanical output can reach a top speed of 5000 rpm, giving wide speed-torque coverage for conveyor, spindle, or lift axes. Class 155 F insulation protects the 058 winding set, while its 5.80 Ω resistance, 0.740 mH inductance, and 6.7 nF discharge capacitance shape the electrical load seen by the inverter. Sound pressure remains 61.8 dB[A] ±3, and operation is monitored by an optical single-turn Hiperface encoder, model S1, that provides 128 increments for feedback.

The electromagnetic constants include a back EMF of 70.0 V/min⁻¹ and a torque constant of 1.09 Nm/A, which help the controller regulate current and torque response. Dynamic behavior is influenced by a rotor inertia of 0.00430 kgm², and the housing mass is 18.0 kg without a brake. A shaft seal is fitted to protect the internal bearings, yet no holding brake is installed, so static holding torque must come from the drive. The optical encoder sits in a UL/CSA-approved enclosure that withstands the listed ambient range, and the terminal-box orientation simplifies cabling along the machine frame.