MKD112D-027-KG3-BN
MKD Synchronous Motors
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 w/ integrated encoder
Position Detection
Absolute (>4096 revs)
Continuous Torque at Standstill
48.0 Nm
Motor Length
D
Centering diameter
130 mm
Flange size
192 mm
Connection Direction
Side B
Product type
Servo Motor
Winding Code
027
Operation
Continuous (S1)
Ambient Temperature Range
0 to 40°C
Type
Permanent Magnet Synchronous Motor
Protection Class
IP65
Weight
73 kg
Frequently Asked Questions
What is the engineering rationale for a 70 Nm holding brake relative to the 48 Nm continuous torque at standstill on MKD112D-027-KG3-BN for vertical axes?
The brake torque margin addresses static load, reflected inertia and safety factors so axes remain stationary under gravity and process disturbances. It improves emergency-stop holding capability and reduces drift when power is removed or the drive is disabled.
How do IP65 protection and a shaft seal with side-B connection benefit installations in packaging, printing, or food-adjacent environments?
The IP65 rating and a sealing ring limits dust and water ingress that protects bearings and feedback interfaces during washdown-adjacent or particulate-rich duty. Its side-B routing simplifies cable runs and helps maintain EMC, strain relief and service loops in tight machine frames.
How do the 130 mm centering diameter and 192 mm flange on MKD112D-027-KG3-BN influence coupling selection and permissible side loads?
The pilot (centering) bore locates the motor concentrically. It keeps belt/pulley radial forces within Rexroth recommendations for the MKD112 size class.
For printing and paper-processing, how does “absolute over 4096 revs” improve registration and uptime versus incremental-only encoders?
The multiturn absolute feedback allows immediate position availability after interruptions to limiting rethreading and print-mark alignment cycles. This speeds restart, reduces scrap and stabilizes synchronous sections in web handling.
What inertia-matching concerns exist given MKD112D-027-KG3-BN’s rotor inertia (~0.0138 kg·m²) and 73 kg mass for machine tools or gantries?
Its load-to-motor inertia ratio that preserves servo bandwidth while limiting resonance, it adds compliant couplings or notch filters as needed. Its base-frame stiffness and lifting/installation provisions for the motor’s mass.
Common Misspellings
MKD 112D-027-KG3-BN
MKD-112D-027-KG3-BN
MKD112D-O27-KG3-BN
MKD112D027KG3BN
MKD112D 027 KG3 BN
mkd112d-027-kg3-bn
Internal Product Review
The Rexroth Indramat’s MKD112D-027-KG3-BN motor comes with a plain-shaft design and connects to electrical main supply through its side-B connector. It has an integrated resolver feedback system with multiturn absolute detection of more than 4096 revolutions. Its 70-Nm brake and 48-Nm standstill torque makes it suitable for factory automation systems. This motor is constructed with IP65 rating and it tolerates temperature between 0 – 40 °C.
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