MKD112C-058-KP3-BN
MKD Synchronous Motors
The Bosch Rexroth Indramat MKD112C-058-KP3-BN from the MKD Synchronous Motors series is a high-precision servo motor designed for demanding automation tasks. With a motor size 112 and a compact motor length C, this model delivers a continuous torque at standstill of 38.0 Nm and features a robust holding brake rated at 70 Nm for secure load-holding. Position feedback is handled via a resolver feedback w/ integrated encoder, offering absolute (>4096 revs) position detection to guarantee accurate motion control. The design supports both radial or standard cooling methods, ensuring thermal stability across a range of operating conditions.
The mechanical configuration includes a shaft with keyway paired with a reliable shaft seal, and the unit is centered on a 130 mm diameter interface for straightforward integration. Rated as maintenance-free, the motor is built with lubricated-for-life bearings and a completely closed design to prevent contamination and extend service intervals. The side B connection direction and standardized winding code 058 simplify wiring and compatibility with existing drives, while the absence of other designs variants limits configuration complexity. All components are engineered for a 10-year life expectancy under nominal loads, supporting long-term reliability.
Compact yet rugged, the MKD112C-058-KP3-BN offers seamless installation in cabinet- or frame-mounted setups without sacrificing performance. Its combination of precise encoder feedback, powerful standstill torque, and secure brake engagement makes it an ideal choice for robotics, packaging machinery, and high-dynamics motion systems.
Technical Specifications
Shaft Design
Shaft with keyway
Shaft Seal
Yes
Holding Brake
With holding brake
Holding Brake Torque
70 Nm
Other Designs
None
Encoder Type
Resolver feedback w/ integrated encoder
Position Detection
Absolute (>4096 revs)
Continuous Torque at Standstill
38.0 Nm
Motor Length
C
Centering diameter
130 mm
Motor Size
112
Connection Direction
Side B
Product type
Servo Motor
Winding Code
058
Cooling Method
Radial or standard
Bearings
Lubricated for life
Design
Completely closed
Maintenance
Maintenance-free
Life Expectancy
10 years
Frequently Asked Questions
Why specify a 70 Nm electrically released holding brake on vertical or safety-critical axes for MKD112C-058-KP3-BN?
The spring-applied, electrically released brake clamps loads on power loss for improving static load-holding and controlled stops on Z-axes and gantries. It reduces risk during E-stop events and maintenance positioning on MKD112C-058-KP3-BN.
What is the impact of radial/standard (surface) cooling selection on torque density and permissible speed?
The surface/radial cooling improves heat rejection to allow higher continuous torque and characteristic speed before reaching thermal limits relative to purely natural cooling. Its parameter sets and permissible overtemperatures differ by cooling mode in the MKD112 class.
How do the keyed shaft and shaft seal influence torsional coupling and contamination control on MKD112C-058-KP3-BN?
The keyway provides positive torque transmission and repeatable phasing with backlash-free couplings, while the seal limits ingress from lubricants or particulates. It supports accurate servo loops in abrasive or washdown-adjacent machinery using MKD112C-058-KP3-BN.
What integration advantages arise from the 130 mm centering diameter and side-B connector orientation?
The centering pilot ensures coaxial alignment and stiffness at the mounting interface by reducing runout and vibration. Its side-B cabling simplifies routing in cabinet- and frame-mounted layouts to minimize cable bend radii and improves EMC practices on MKD112C-058-KP3-BN.
In what scenarios is 38.0 Nm continuous torque at standstill technically advantageous?
Its use is in applications like web-tension control, rotary knife phasing or index tables demand sustained holding and low-speed torque without thermal drift. It supplies steady electromagnetic torque for precise dwell-and-move cycles and creep positioning.
Common Misspellings
MKD 112C-058-KP3-BN
MKD-112C-058-KP3-BN
MKD112C-O58-KP3-BN
MKD112C058KP3BN
MKD112C 058 KP3 BN
mkd112c-058-kp3-bn
Internal Product Review
The Bosch Rexroth Indramat’s MKD112C-058-KP3-BN servo motor integrates resolver feedback with multi-turn absolute encoder for positional detection. It has a 70 Nm brake and it offers 38 Nm of standstill torque. This unit uses radial/standard cooling and posseses a sealed keyed shaft that suit robotics, packaging lines and machine tools. Its side-B connector and 130 mm centering simplify integration.
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