Product Description:

The MKE118D-035-BG0-KE4 servo motor is produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Designed for potentially explosive areas, it follows the ATEX housing standard and carries an IP65 rating to keep dust and water jets away from internal components. This plain-shaft unit is intended to deliver closed-loop torque and speed in automation zones where flammable gases may be present, using an optical single-turn EnDat 2.1 encoder for position feedback.

At a thermal equilibrium of 60 K, the motor can generate 48.0 Nm of continuous torque while drawing 29.8 A of continuous current; these values indicate the sustained mechanical output and corresponding electrical demand at standstill. Torque production is indicated by a 1.87 Nm/A torque constant, and the back EMF is listed at a 114.5 V per 1000 rpm voltage constant, which helps match the motor to a compatible drive. The three-phase stator has a 3.20 mH winding inductance and 0.210 Ω of resistance at 20 °C, which helps limit ripple current. Feedback is supplied by an S2 optical encoder with 2,048 increments, and cabling enters from the top through a terminal box that accepts glands between 13 and 16 mm. Operation is permitted from 0 to +40 °C ambient, and the insulation system is Class F.

For short bursts, the motor tolerates 187.0 Nm of peak torque and up to 134.3 A RMS current, enabling rapid acceleration toward its 3000 rpm nominal speed. Dynamic response is influenced by a 0.03620 kg·m² rotor inertia, which balances responsiveness with load stability. The shaft includes a front centering hole and a DIN 332 DS thread, and a shaft seal is fitted to preserve the sealed enclosure. Weight without a holding brake is 65 kg, acoustic emission is 61.1 dB(A), and discharge capacity reaches 20.2 nF. The housing remains gas-tight, and the motor does not include an internal brake.