R911294903 (MHD112B-035-PG0-BN)

Name: R911294903 (MHD112B-035-PG0-BN)
Brand: Indramat Motors
SKU: MHD112B-035-PG0-BN
Price: 406.00 USD
Availability: InStock

MHD Synchronous Motors

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The Rexroth synchronous motor MPN R911294903 (MHD112B-035-PG0-BN) is designed for industrial automation applications requiring precise motion control. This servo motor features a digital servo feedback system with a multiturn absolute encoder (>4096 revolutions) and integrated encoder, liquid-cooled housing, and an IP65 protection rating with insulation class F. It provides a continuous standstill torque of 28.0 Nm, a maximum theoretical torque of 102 Nm at 4000 RPM, and a rated torque of 33.1 Nm at 2500 RPM. The device operates with a continuous current of 16.6 A at 100 K, and has a moment of inertia of 192 x 10^(-4) kg·m². The motor includes a plain output shaft with shaft seal, flange size of 192 mm, centering diameter of 130 mm, and power connector positioned on side B. It does not include a holding brake. The total weight is 34 kg. Winding code for this model is 035.

Technical Specifications

Thermal Time Constant
20-40 minutes

Output Shaft
Plain

Max Theoretical Torque
102 Nm

Max Speed
4000 RPM

Feedback Type
Digital servo with integrated multiturn encoder

Power Connector Location
B side of the housing

Moment of Inertia
192 x 10-4 kgm2

Weight
34 kg

Protection Level
IP 65

Insulation Class
F

Continuous Torque (at 100 K, with natural cooling)
24.4 Nm

Continuous Current
16.6 A

Rated Speed
2500 RPM

Rated Torque (first parameter for surface cooled at 60/100 k)
33.1 Nm

Holding Brake
Not present.

Frequently Asked Questions

Why is absolute position detection beneficial for automation systems?

It allows the motor to retain position data even after power loss. This eliminates the need for homing cycles during system restarts, saving setup time.

What installation precautions apply to the MHD112B-035-PG0-BN’s side B power connector?

Proper cable strain relief and connector sealing are critical to prevent vibration-related failures. Aligning the connector orientation also improves maintenance access in compact installations.

Why might an engineer choose a plain shaft over a keyed one for this motor?

A plain shaft offers smoother torque transmission for applications using friction coupling. It also reduces backlash in precision-driven equipment like packaging machines.

What type of systems typically use motors with a 192 mm flange?

Such flange dimensions fit medium-to-large automation assemblies. They are common in conveyor systems, industrial robotics, and high-torque servo presses.

How does the encoder’s multi-revolution capability enhance process control?

It enables tracking over more than 4096 shaft revolutions without loss of accuracy. This is essential for long-travel linear actuators or large rotary tables.

Common Misspellings

MHD112B035PG0BN

MHD112B 035 PG0 BN

mhd112b-035-pg0-bn

Internal Product Review

The MHD112B-035-PG0-BN is a Servo Motor that is manufactured by Bosch Rexroth Indramat. It features a motor size 112, 28.0 Nm torque, and liquid cooling with digital servo feedback and absolute position detection. It is commonly used in robotics, CNC machinery, and packaging automation.