MKE118D-027-NG3-KE4 Bosch Rexroth Indramat
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MPN: R911306685
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The Bosch Rexroth Indramat MKE118D-027-NG3-KE4 is a servo motor designed for potentially explosive areas, and is part of the MKE Synchronous Motors series. It features an IP65 rating, meets the ATEX housing standard, and has a plain shaft with a DIN 332 compliant thread and frontal centering hole. The motor provides a continuous torque of 48.0 Nm at standstill, a maximum torque of 187.0 Nm, and weighs 65 kg without the brake.
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Product Description:
The Bosch Rexroth Indramat MKE118D-027-NG3-KE4 is a servo motor for potentially explosive areas in the MKE Synchronous Motors series. It drives machinery in process lines where precise torque and compliance with hazardous-zone directives are required in industrial automation. The motor mounts with its power and feedback leads routed upward because the connections are on the top of the terminal box, which accepts conduits through cable entries from 13.0 mm to 16.0 mm. It operates in ambient temperatures from 0 °C to +40 °C and weighs 65.0 kg without the brake. A plain shaft with a frontal centering hole and a DIN 332 DS thread supports coupling to gear stages.
During continuous duty at a 60 K winding temperature rise, the motor sustains 48.0 Nm of torque while drawing 22.1 A. The 027 winding code corresponds to electrical values of 5.70 mH inductance, 0.350 Ω resistance, and 20.2 nF capacitance, allowing stable current loops. A built-in holding brake rated at 70 Nm secures vertical axes when power is removed. For dynamic motion, the rotor can reach 3000 rpm and deliver up to 187.0 Nm, and such peaks can require as much as 99.6 A RMS from the drive amplifier. The shaft seal helps limit the entry of oil or dust, and the sound pressure level is 61.1 dB(A) ±3 during operation.
The motor has an ATEX-certified housing and an IP65 enclosure that blocks dust and water jets. Class 155 F insulation permits prolonged copper temperatures, while the steel rotor inertia of 0.03620 kgm² balances acceleration with load smoothing. The electromagnetic design yields a torque constant of 2.52 Nm/A, and the voltage constant is 154.5 V per 1000 rpm. These ratings suit use in process equipment such as chemical mixers and grain handling conveyors, where sealed construction and hazardous-area approval are required.
