Product Description:

The MKE098B-058-CG1-RUNN is a servo motor for potentially explosive areas manufactured by Bosch Rexroth Indramat within the MKE Synchronous Motors series. It delivers controlled torque and speed for automated machinery operating in hazardous zones where combustible gas or dust may be present. The motor is intended for applications that need repeatable motion while also meeting installation requirements for classified areas. Its synchronous design supports controlled axis movement in enclosed industrial systems.

Winding code 058 is paired with an optical multiturn absolute Hiperface encoder, model M1, that provides 128 increments for position feedback. This feedback arrangement allows the drive to monitor rotor position continuously during regulated motion. At a 60 K stator temperature rise, the motor sustains 12.0 Nm of torque while drawing 12.4 A, and its torque constant is 1.09 Nm/A. Peak demand can reach 55.9 A, and the motor can run up to 5000 rpm with a maximum torque of 43.5 Nm. The back-EMF coefficient is 70.0 V/min⁻¹, and the electrical data also include a 6.7 nF discharge capacity, insulation class 155 F, and a UL/CSA-compliant housing. A right-side terminal box helps with cable routing, while a plain shaft with a DIN 332 DS thread, a shaft seal, and a frontal centering hole supports mechanical connection. An 11 Nm holding brake secures the shaft at standstill, and sound emission is 61.8 dB[A].

The rotor has a moment of inertia of 0.00430 kgm², which supports moderate acceleration without excessive drive demand. The motor weighs 18.0 kg, which affects mounting load and moving-axis calculations. Phase inductance of 0.740 mH works with a phase resistance of 5.80 Ω to smooth switching effects at the windings. Operation is permitted at ambient temperatures from 0 to +40 °C, and no forced cooling is required under the continuous load profile.