MHD112C-035-PG3-BN
MHD Synchronous Motors
The Bosch Rexroth Indramat MHD112C-035-PG3-BN is a high-performance Servo Motor in the MHD Synchronous Motors series, featuring a motor size 112 frame and a compact motor length C. It carries a winding code 035 and is equipped with a robust plain shaft design sealed with an integrated shaft seal. Engineered for versatile installation, it incorporates a flange size 192 mm and matches a precise centering diameter 130 mm for straightforward mechanical alignment. The liquid-cooling architecture ensures efficient heat dissipation, leveraging its housing cooling type liquid cooling system to maintain stable operating temperatures under demanding conditions.
This servomotor delivers a substantial continuous torque at standstill 38.0 Nm and integrates a maintenance-free holding brake rated for holding brake torque 70.0 Nm. Position control is provided by advanced digital servo feedback w/ integrated encoder, offering a fully absolute (>4096 revolutions) detection mechanism for seamless multiturn referencing. Power connection is routed via an output connector directed to side B, minimizing cabinet wiring complexity and enabling secure, vibration-resistant coupling. With its built-in brake and precision feedback, this motor is optimized for applications requiring immediate hold, high repeatability, and rapid start-stop cycles.
Constructed for reliability, the MHD112C-035-PG3-BN excels in dynamic automation systems and positioning tasks where torque-to-inertia ratio is critical. The design supports customizable encoder interfaces and blower attachments to match cooling and environmental requirements. Overall, this servo motor balances robust mechanical features, precise electronic commutation, and enhanced protection to serve a breadth of industrial processes from machine tools to packaging systems.
Technical Specifications
Holding Brake
With holding brake
Holding Brake Torque
70.0 Nm
Housing Cooling Type
Liquid cooling
Encoder Type
Digital servo feedback w/ integrated encoder
Type of Position Detection
Absolute (>4096 revolutions)
Continuous Torque at Standstill
38.0 Nm
Motor Length
C
Centering diameter
130 mm
Flange size
192 mm
Motor Size
112
Shaft Design
Plain shaft
Shaft Seal
Yes
Power Connection Direction
to side B
Power ConnectionType
Output Connector
Product Type
Servo Motor
Winding Code
035
Frequently Asked Questions
Why specify a sealed plain shaft, and which coupling practices minimize fretting and contamination risk?
The plain shaft with an integrated seal limits coolant or dust ingress into the front bearing cavity for protecting lubricant and bearings. It is important to use balanced, clamp-style couplings with proper alignment and preload to avoid micro-movement and fretting under reversing torsion.
How do the 192 mm flange and 130 mm centering diameter affect mounting accuracy for MHD112C-035-PG3-BN?
The standardized flange and pilot interface provide kinematic repeatability and concentricity for simplifying alignment with precision gearheads or belt pulleys. Its larger pilot engagement raises bending stiffness for reducing runout-induced vibration on high-speed positioning axes.
ow is the 70 Nm holding brake on MHD112C-035-PG3-BN applied for vertical axes or safety stops?
The brake secures a stationary load during power-off or drive disable, while it is not a dynamic emergency-stop device. It is important to size the brake to static loads and back-driving risk, as it rely on the drive for controlled deceleration.
What is the function of the side-B power-connector orientation on MHD112C-035-PG3-BN regarding cabinet layout and cable strain relief?
Its side-B routing keeps the power lead clear of encoder/feedback cabling and machine structures for easing harness dressing. It also facilitates shorter, protected cable runs to moving axes for reducing bending stress and improving EMC performance.
How does the torque-to-inertia character of the MHD112C architecture influence motion profiles in packaging or pick-and-place service?
Its favorable ratio lets the drive command higher accelerations without overshoot to improvesettle times and registration accuracy. It benefits start-stop indexing, electronic gearing and multi-axis synchronization where tight repeatability is critical.
Common Misspellings
MHD112C035PG3BN
MHD112C 035 PG3 BN
mhd112c-035-pg3-bn
Internal Product Review
Bosch develops the servo motor MHD112C-035-PG3-BN in a 112-frame size and it has an integrated liquid-cooling system in the housing. It possesses a sealed plain shaft for secure rotational operations and it offers 38 Nm stall torque. This motor is equipped with a 70 Nm brake and an absolute digital feedback system to enable precise positioning. It has 192 mm flange/130 mm pilot and side-B power connector to suit CNC, packaging and web-printing lines.
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