Product Description:

The MKE098B-047-NG0-BENN is a flameproof AC servo motor produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Designed for motion axes installed in hazardous zones, it follows the ATEX housing standard and provides electronic torque generation without sparking components. The motor is used on conveyors, mixers, and machine slides where closed-loop control is required while combustible gases may be present. Its flameproof construction helps contain internal ignition sources so the drive system can be applied in regulated industrial areas.

At a permitted ambient range of 0 to +40 °C, the motor can sustain a shaft load at standstill of 12.0 Nm while its copper temperature remains 60 K above the surrounding air. Supplying the stator with 9.8 A RMS is enough to maintain that static torque, so the required holding current remains predictable across shaft positions. When acceleration peaks are demanded, the electromagnetic package can generate up to 43.5 Nm, which helps the axis overcome inertial loads without mechanical gearing. The rotor is balanced for surface speeds that reach 4500 rpm, allowing high-speed processes to stay within ex-zone temperature limits.

The transient current ceiling is 44.3 A RMS, so the connected inverter must support that demand through properly sized cables routed to the terminal box on side B. With a rotor inertia of 0.00430 kgm², velocity loops can settle quickly without excessive regenerative energy, and the plain shaft with a DIN 332 DS thread allows direct coupling to keyed hubs. The motor mass of 18.0 kg adds thermal capacity so the F-class insulation can withstand repetitive starts. A torque constant of 1.41 Nm/A links commanded phase current to produced torque, and the winding’s inductance and resistance help the drive maintain stable current control in explosive atmospheres.