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R911283781 (MKD112D-027-GG3-AN)

MKD Synchronous Motors

Rated 4.3 stars (8 total reviews)
  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The Bosch Rexroth R911283781 (MKD112D-027-GG3-AN) is a servo motor engineered for applications requiring precise speed and position control. This motor features a brushless design, plain shaft with shaft seal, and includes a 70 Nm holding brake. It incorporates resolver feedback for relative position detection. The unit delivers a continuous torque of 48 Nm at standstill (60K overtemperature), with a maximum torque of 180 Nm. The motor operates at a characteristic speed of 3000 rpm and a rated speed of 2000 rpm. Electrical specifications include a peak current of 31.6 A and a winding inductance of 5.65 mH. The MKD112D-027-GG3-AN uses an output connector, flange size of 192 mm, motor size 112, length D, lubrication for life, and conforms to IP65 protection class. Voltage constant is 150 V/krpm. Weight is 80 kg.

Technical Specifications

Application
Speed and position control operations

Protection Standard
IP 65

Characteristic Speed
3000 rpm

Rated Speed
2000 rpm

Continuous Torque at 60K overtemperature
48 Nm

Peak Current at 60K overtemperature
31.6 A

Winding Inductance
5.65 mH

Motor Design
Brushless

Commutation
Electronic

What implications do the 48.0 Nm standstill torque and 70 Nm holding brake of MKD112D-027-GG3-AN have for vertical axes or intermittent clamp duties?

The continuous standstill torque supports static load sharing without thermal creep in Z-axes, while the 70 Nm brake supplies fail-safe holding during power loss. It mitigates back-driving risks in hoists, presses and elevator-style mechanisms.

Why is a plain shaft with shaft seal advantageous for MKD112D-027-GG3-AN in washdown-adjacent packaging zones?

The sealed plain shaft reduces ingress of moisture or particulates into bearing cavities and maintains lubricant integrity for aligning with IP-rated MKD configurations for harsher industrial environments. It diminishes maintenance intervals and helps preserve bearing preload and runout characteristics.

How do the 150 V/krpm voltage constant and 105 A peak current of MKD112D-027-GG3-AN map to drive-sizing in Diax04/Ecodrive systems?

The back-EMF constant sets DC-bus and PWM voltage utilization; 150 V/krpm demands adequate DC-link headroom at rated/characteristic speeds. Its 105 A peak defines current-loop saturation limits for drive selection and cable thermal ratings in Indramat Diax04/Ecodrive pairings.

How does lifetime lubrication in MKD112D-027-GG3-AN influence bearing L10 calculations and service planning?

The pre-filled, sealed bearings eliminate relubrication intervals, so endurance planning centers on L10 life from equivalent dynamic loads and duty cycles.

What is the significance of frame size 112, length D, and 130 mm centering diameter on MKD112D-027-GG3-AN for retrofit alignment?

Its size 112, with 192 mm flange and 130 mm pilot conforms to MKD mechanical standards for simplifying drop-in replacement and coupling alignment. Its length D correlates with higher continuous torque variants within the frame.

MKD 112D-027-GG3-AN

MKD-112D-027-GG3-AN

MKD112D-O27-GG3-AN

MKD112D027GG3AN

MKD112D 027 GG3 AN

mkd112d-027-gg3-an

Internal Product Review

The Bosch Rexroth Indramat’s MKD112D-027-GG3-AN servo motor pairs a plain-shaft that has a sealing ring with a resolver (RSF) feedback for reliable relative positioning. It supplies 48 Nm at standstill and it is equipped with a 70 Nm brake system. Its torque constant is specified as 150 V/krpm and its peak current usage reached up to 105 A in overload conditions. This unit is suitable for machine tools, packaging, printing and automated handling lines.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MKD112D-027-GG3-AN.
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