MKD112D-027-GP3-AN
MKD Synchronous Motors
The Bosch Rexroth Indramat MKD112D-027-GP3-AN is a precise servo motor in the MKD Synchronous Motors series. It features 48.0 Nm continuous torque at standstill, a 70 Nm holding brake, resolver feedback position detection, 2000 min-1 rated speed, a 192 mm flange, and weighs 56 kg.
Technical Specifications
Centering diameter
130 mm
Connection Direction
Side A
Connection Type
Output connector
Continuous Torque at Standstill
48.0 Nm
Encoder Type
Resolver feedback (RSF)
Flange size
192 mm
Holding Brake
With holding brake
Holding Brake Torque
70 Nm
Motor Length
D
Motor Size
112
Position Detection
Relative
Product type
Servo Motor
Shaft Design
Shaft with keyway
Shaft Seal
Yes
Winding Code
027
Frequently Asked Questions
How does the 90 min thermal time constant of MKD112D-027-GP3-AN influence overload utilization and model-based thermal limits?
The long time constant slows temperature rise for enabling extended accel bursts before reaching thermal limits under intermittent duty. Its thermal observers in the drive can exploit this inertia to maximize throughput without exceeding winding class constraints.
At the rated 2000 min⁻¹, what mechanical output is feasible if 48.0 Nm were maintained on MKD112D-027-GP3-AN?
The power would be on the order of ≈10 kW (P≈τ·ω). Its actual continuous power depends on the torque-speed curve, its servo torque typically rolls off with speed due to voltage and current limits.
How do the 192 mm flange and 130 mm centering diameter affect mounting stiffness and alignment in gantry or gearbox-coupled assemblies?
The large pilot ensures concentricity and reduces shear on fasteners for improving torsional coupling alignment and modal behavior. Its correct H7/h7 fit tolerances limit runout to minimize excitation of structural resonances under rapid reversals.
What are the trade-offs of a shaft with keyway and shaft seal on MKD112D-027-GP3-AN versus shrink-fit or taper-lock alternatives?
The DIN 6885-1 key simplifies repeatable phasing and provides positive drive, while the seal mitigates lubricant and dust ingress. Its keyways introduce stress risers and potential backlash.
How does the rotor inertia (3.50×10⁻² kg·m²) in MKD112D-027-GP3-AN influence loop bandwidth and reflected inertia matching?
Its higher rotor inertia increases mechanical damping and eases standstill ripple filtering but limits achievable acceleration and crossover frequency. Its load inertia (reflected through gearing/screw lead) within common ratios (≈1:1–5:1) to maintain stable and responsive tuning.
Common Misspellings
MKD 112D-027-GP3-AN
MKD-112D-027-GP3-AN
MKD112D-O27-GP3-AN
MKD112D027GP3AN
MKD112D 027 GP3 AN
mkd112d-027-gp3-an
Internal Product Review
The MKD112D-027-GP3-AN servo motor comes with a 70 Nm holding brake. It has a 192 mm flange and offers resolver-based relative feedback. This motor features a rated rotational speed of 2000 min⁻¹ and weighs 56 kg. It serves in machine tools, printing/packaging axes and food-processing conveyors that requires secure vertical/horizontal positioning. It possesses a balanced keyway shaft with an embedded seal.
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