MKD112D-027-GG3-BN

MKD Synchronous Motors

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The MKD112D-027-GG3-BN servo motor by Bosch Rexroth Indramat is part of the MKD Synchronous Motors series. It features a plain shaft with shaft seal, comes with a holding brake and delivers 70 Nm brake torque. The motor offers 48.0 Nm continuous torque at standstill and uses resolver feedback with multiturn absolute encoder. It is cooled radially and mounted with a 192 mm flange.

Technical Specifications

Shaft Design
Plain shaft

Shaft Seal
Yes

Holding Brake
With holding brake

Holding Brake Torque
70 Nm

Other Designs
None

Encoder Type
Resolver feedback (RSF)

Position Detection
Relative

Continuous Torque at Standstill
48.0 Nm

Motor Length
D

Flange size
192 mm

Motor Size
112

Connection Direction
Side B

Product type
Servo Motor

Winding Code
027

Integrated Encoder
Multiturn Absolute

Phase
3

Type
MKD112D

Cooling
Radial

Bearing Lubrication
Life-time lubricated

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

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.