R911283984 (MKD112D-027-GG3-BN)
MKD Synchronous Motors
Technical Specifications
Cooling Methods
Natural, Surface
Peak Current
142.2 amps
Characteristic Motor Speed
3000min-1
Continuous Torque at Standstill (60K overtemperature, natural cooling)
48.0 Nm
Continuous Torque at Standstill (100K overtemperature, natural cooling)
57.0 Nm
Continuous Torque at Standstill (surface cooling)
72.0 Nm
Continuous Current (60K overtemperature, natural cooling)
31.6 amps
Continuous Current (100K overtemperature, natural cooling)
40.2 amps
Continuous Current (surface cooling)
47.4 amps
Voltage Constant
154.5 V/1000Min-1
Winding Resistance
0.35 Ohms
Torque Constant
1.7Nm/A
Pole Pairs
4
Motor Winding Inductivity
5.65 Mh
Rotor Moment of Inertia
350X10-4
Weight
56kgs
Maximum Speed
3000min-1
Theoretical Maximum Torque
187 Nm
Storage/Transport Temperature
-20°C to +80°C
Ambient Temperature
0°C to 40°C
Peak Mounting Height
1000 MSL
Time Constant (natural cooling)
90 minutes
Time Constant (surface cooling)
40 minutes
Frequently Asked Questions
How does resolver + multiturn absolute feedback on MKD112D-027-GG3-BN improve commissioning versus incremental encoders?
The integrated resolver with multiturn absolute capability presents true multi-turn position at power-up to remove homing cycles and fixture travel. Its encoder data memory further accelerates parameterization and reduces mismatch errors when pairing to the drive.
What thermal benefit does radial cooling provide to MKD112D-027-GG3-BN under stall-torque duty?
The radial/surface cooling increases convection on the stator jacket for delaying thermal saturation so the motor sustains the 48.0 Nm standstill torque longer before derating. It widens the continuous operating envelope in packaging or indexing axes with extended dwell times.
Is the 70 Nm holding brake on MKD112D-027-GG3-BN adequate for vertical-axis load retention and E-stop clamping?
The spring-applied brake is sized for static holding, not dynamic absorption of high-energy stops, while the drive should decelerate the load before clamping.
What are the environmental ratings for the MKD112D-027 platform and how do they affect enclosure design?
The MKD series motors meet IP65 and class F thermal class when installed per guidance for supporting 0 – 40 °C and ~1000 m altitude. It maintain IP65 and EMC compliance to preserve the rating.
How does the 192 mm flange and large bearing set influence overhung load and gearbox coupling choices?
The DIN-conformant flange with high radial-load bearings enables direct belt/pinion overhung mounting for reducing intermediate hardware. Its permissible radial/axial load curves to size pulleys or planetary gearboxes without exceeding bearing L10 life.
Common Misspellings
MKD 112D-027-GG3-BN
MKD-112D-027-GG3-BN
MKD112D-O27-GG3-BN
MKD112D027GG3BN
MKD112D 027 GG3 BN
mkd112d-027-gg3-bn
Internal Product Review
Bosch Rexroth Indramat made the MKD112D-027-GG3-BN servo motor with a plain sealed shaft and it includes a 70 Nm holding brake. It uses radial cooling and possess resolver feedback with multiturn absolute tracking that streamlines homing. The unit provides 48.0 Nm continuous stall torque and has a 192 mm flange size that suit machine tools and automated material handling.
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