MKE118B-058-NG0-KE4 Bosch Rexroth Indramat
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MPN: R911310235
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The Bosch Rexroth Indramat MKE118B-058-NG0-KE4 is a servo motor from the MKE Synchronous Motors series, designed for potentially explosive areas and compliant with ATEX housing standards. It has a continuous torque at standstill of 28.0 Nm, a maximum torque of 102.0 Nm, and operates at a maximum velocity of 4500 rotations per minute. The motor features a plain shaft with a DIN 332 compliant thread, a terminal box connection on top, and weighs 45 kilograms without a holding brake.
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Product Description:
The MKE118B-058-NG0-KE4 is a servo motor for potentially explosive areas produced by Bosch Rexroth Indramat within the MKE Synchronous Motors series. Designed for industrial automation zones classified as hazardous, the unit converts electrical power into controlled mechanical torque and speed. This allows conveyors, mixers, or positioning tables to operate safely where flammable gases or dusts may be present.
At a standstill and with a winding temperature rise of 60 K, the motor can deliver 28.0 Nm continuously while drawing 28.4 A; these ratings set the thermal limit for steady holding or low-speed tasks. During dynamic events it accepts 127.6 A to produce 102.0 Nm, giving headroom for acceleration. The rotor can reach 4500 min⁻¹, a velocity suited to high-speed drives inside the 0 to +40 °C operating window. Operation without a holding brake requires external locking when power is removed. The cast housing follows ATEX requirements, and the F-class insulation resists winding temperatures up to 155 °C. Conductors enter from the top through a terminal box, simplifying cabinet layouts.
The dynamic behavior is influenced by a rotor inertia of 0.01940 kg·m², which balances rapid response with stable control loops. Electromagnetic conversion efficiency is shown by a torque constant of 1.15 Nm/A and a back-EMF constant of 70.0 V/min⁻¹, values that assist the drive with current and voltage scaling. The motor weighs 45.0 kg without a brake and uses winding 058, which has an inductance of 0.170 mH and a resistance of 2.20 Ω at 20 °C. A plain shaft with a frontal centering hole, DS thread, and a shaft seal supports direct coupling to gearboxes while maintaining IP protection. The cable entry accepts diameters from 13.0 mm to 16.0 mm, and the discharge capacity of 10.3 nF aids in EMI suppression. During operation, the sound pressure level remains at 61.1 dB[A] ±3, keeping acoustic emissions moderate for shop-floor equipment.
Frequently Asked Questions about MKE118B-058-NG0-KE4:
Q: What is the maximum velocity of the MKE118B-058-NG0-KE4 synchronous motor?
A: The MKE118B-058-NG0-KE4 has a maximum velocity of 4500 min⁻¹.
Q: What is the peak torque output of the MKE118B-058-NG0-KE4 motor?
A: The motor provides a maximum torque output of 102.0 Nm.
Q: What type of shaft configuration does the MKE118B-058-NG0-KE4 offer?
A: This model features a plain shaft with a frontal centering hole.
Q: Which housing standard compliance does the MKE118B-058-NG0-KE4 motor meet?
A: The MKE118B-058-NG0-KE4 complies with ATEX housing standards for safety in potentially explosive areas.
Q: What ambient temperature range is supported by the MKE118B-058-NG0-KE4 motor?
A: The ambient temperature range for this motor is from 0 to +40 °C.
