MKD112C-058-GG3-AN

MKD Synchronous Motors

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The MKD112C-058-GG3-AN from Bosch Rexroth Indramat features a rated power of 35.6 kW and a rated voltage of 400 V. Part of the MKD Synchronous Motors series, it uses natural convection cooling and has insulation class F. The motor uses resolver feedback with relative position detection and a plain shaft design.

With a flange size of 192 mm and a centering diameter of 130 mm, it has motor length C. It has a moment of inertia of 7.63 kg·cm². It includes a shaft seal for operation.

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
38.0 Nm

Motor Length
C

Flange size
192 mm

Centering diameter
130 mm

Connection Direction
Side A

Product type
Servo Motor

Winding Code
058

Cooling
Natural Convection

Rated Power
35.6 kW

Rated Voltage
400 V

Insulation Class
Class F

Moment Of Inertia
7.63 kg·cm²

Frequently Asked Questions

What thermal behavior should be expected from MKD112C-058-GG3-AN under natural-convection cooling and Class-F insulation at 35.6 kW/400 V?

The forced airflow, enclosure temperature and mounting orientation materially affect permissible continuous torque. Its class-F materials tolerate higher winding temperatures but monitoring via the drive’s thermal model remains essential for lifetime.

How does the 70 Nm holding brake interact with the motor’s rated/standstill torques on MKD112C-058-GG3-AN for vertical axes?

The brake is sized for static holding, not for dynamic stopping, while the emergency-stop energy must be handled by the drive and mechanics. Its release current and response times (≈1.29 A, ~97 ms on 112C/058 variants) inform safe-torque-off timing.

What are the servo-tuning implications of the listed 7.63 kg·cm² rotor inertia for load matching and bandwidth?

The low rotor inertia supports higher control bandwidth but increases sensitivity to load-inertia ratio and coupling compliance. Its autoset with frequency-response checks and aims for conservative inertia ratios when compliant transmissions or variable loads are present.

How do the 192 mm flange and 130 mm centering diameter of the MKD112C-058-GG3-AN affect retrofits and IM B5 face mounting?

The DIN-aligned envelope simplifies replacement on legacy frames, its pilot accuracy governs concentricity and vibration to preserve bearing life and alignment.

Does the plain-shaft with seal on MKD112C-058-GG3-AN maintain IP65 when coupled, and what coupling choices are preferred?

The dimensioned sealed coupling and cover is used to preserve the listed IP65 ingress protection. Its backlash-free, torsionally stiff couplings are typically selected to preserve servo stiffness and positioning fidelity.

Common Misspellings

Internal Product Review

The Bosch Rexroth Indramat’s MKD112C-058-GG3-AN motor operates on a rated power of 35.6 kW from a 400 V supply source. It uses natural-convection cooling and it possess class-F insulation. This unit has a plain-shaft with seal, resolver-based relative feedback and 70 Nm brake to suit axes in machine tools and semiconductor handling. It offers 38 Nm standstill torque that aids in precise positioning and performance.