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R911286191 (MKD112D-027-GG0-AN)

MKD Synchronous Motors

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1 Year Warranty Included
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The R911286191 (MKD112D-027-GG0-AN) is a Bosch Rexroth synchronous 3-phase servo motor designed with a plain shaft, shaft seal, and resolver feedback for relative position detection. This unit features a nominal speed of 3000 rpm, a maximum speed of 3000 min-1, and produces a maximum torque of 47.4 Nm, with continuous torque at standstill rated at 48.0 Nm. The motor operates within ambient temperatures from 0°C to 40°C and can be stored between -20°C and 80°C. Mechanical specification includes a flange size of 192 mm, motor size 112, and a rotor moment of inertia of 350×10⁻⁴. The motor weighs 56 kg and uses an output connector for connection. It is supplied without a holding brake and has a winding code of 027.

Technical Specifications

Cooling Method
Surface/Natural

Peak Current
142.2 Amps

Characteristic Motor Speed
3000min-1

Continuous Torque at Standstill
48.0Nm/57.0Nm/72.0Nm

Continuous Current
47.4A/31.6A/40.2A

Voltage Constant
154.5V/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 Kg/m^2

Weight
56 kg

Max Speed
3000min-1

Theoretical Max Torque
187 Nm

Storage or Transport Temperature
-20%C to +80%C

Ambient Temperature
0%C to 40%C

Max Mounting Height
1000 MSL

Time Constant
90/40 Minutes

What does insulation class F mean for MKD112D-027-GG0-AN with respect to thermal headroom and ambient 0–40 °C operation?

The class F insulation allows higher permissible winding temperature rise versus lower classes to preserve dielectric strength during continuous duty near nameplate torque. Its specified ambient range, thermal design margins support reliable torque delivery when cooling and cabling are implemented per guidelines.

How should a sealed plain shaft on MKD112D-027-GG0-AN guide coupling selection and ingress protection at the motor-machine interface?

The shaft sealing ring reduces lubricant egress and contaminant ingress but alignment and runout must stay within coupling tolerances to minimize seal wear. Its backlash-controlles elastic couplings and respect radial/axial load limits documented for MKD112 variants.

What mounting and alignment constraints follow from the 192 mm flange and Ø130 mm centering diameter for the MKD112 frame?

The centering spigot carries primary concentricity that datums the gearbox or machine plate to Ø130 mm to limit bearing preload. Its bolt pattern and flange size standardize interchange with other MKD112D variants for easing field replacements without re-machining.

Why does MKD112D-027-GG0-AN list 48.0 Nm continuous torque at standstill yet 47.4 Nm maximum torque and how should drives be tuned accordingly?

The MKD data segregate S1 stall torque and series peak/limit values, its controller current limits follow the lower of drive or motor tables. Its tune velocity and position loops are used to avoid sustained current saturation during low-speed indexing.

What are the commissioning implications of relative position detection on MKD112D-027-GG0-AN for safety-critical stop/restart routines?

Its position is incremental and homing or marker capture is required after each power cycle. It implement stateful restart logic prevent inadvertent motion on resolver index loss.

MKD 112D-027-GG0-AN

MKD-112D-027-GG0-AN

MKD112D-O27-GGO-AN

MKD112D027GG0AN

MKD112D 027 GG0 AN

mkd112d-027-gg0-an

Internal Product Review

Bosch Rexroth Indramat develops the servo motor MKD112D-027-GG0-AN that comes with a built-in resolver-based feedback system. Its three-phase synchronous design is built with a 192 mm IEC-style flange and a sealed plain shaft. This motor has a rated speed of 6000 rpm and its torque delivery in standstill mode is 48 Nm that suits packaging, CNC machining, printing and material-handling cells, where resilient relative feedback within 0 – 40 °C is required.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MKD112D-027-GG0-AN.
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