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R911290911 (MHD112A-058-NP1-BN)

MHD Synchronous Motors

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1 Year Warranty Included
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Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping

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3 Minutes 55 Seconds

The Bosch Rexroth R911290911 (MHD112A-058-NP1-BN) is an MHD series synchronous servo motor equipped with a keyed shaft and a shaft seal to minimize contamination from oil and grease. It incorporates a holding brake operating at DC 24 V ±10% with a current draw of 0.71 A, delivering a holding torque of 22 Nm and adding 1.1 kg to the assembly. The motor uses digital servo feedback (HSF) for relative position detection, ensuring accurate performance. The housing, with an IP65 rating, is equipped with connectors on side B and features liquid cooling, a corrosion-resistant black coating, and an aluminum flange. Key dimensions include a centering diameter of 130 mm, flange size of 192 mm, and a size 112 frame.

Technical Specifications

Type
Brushless Servo Motor

Application
Printing, Packaging, Mounting, Robotics

Holding Brake Operation
DC 24 V

Current Consumption
0.71A

Holding Torque
22 Nm

Mass of Brake
1.1 kg

Electrical Connectors
Side B of Housing

Motor Protection
IP65 Enclosure

Winding Code
058

Positioning System
Digital Servo Feedback

Output Shaft Type
Key-way

Seal Ring
Yes

Flange Material
Aluminum

Housing Coating
Black Prime Coat

Mounting
Four Standard Holes

How does the holding brake torque of 22 Nm contribute to safety in vertical axis systems?

The holding brake maintains load position when power is off, critical in vertical motion setups like lifts or presses. This prevents unintended motion, enhancing machine safety.

Why is a digital servo feedback (HSF) encoder used in the MHD112A-058-NP1-BN?

The HSF encoder provides high-resolution positional accuracy, improving motion precision and synchronization. It also simplifies integration with modern drive controllers.

How does relative position detection impact system setup?

Relative encoders need homing at startup to define reference positions. This design simplifies feedback electronics but requires system initialization after power loss.

How does the 192 mm flange size influence motor compatibility?

The standardized flange size allows interchangeability within the same motor class. It simplifies retrofitting in existing mechanical assemblies.

What maintenance aspects are associated with the liquid-cooled housing design?

Regular coolant quality checks and leak inspections are required to sustain thermal efficiency. Proper maintenance prevents overheating and corrosion in the cooling circuit.

MHD112A058NP1BN

MHD112A 058 NP1 BN

mhd112a-058-np1-bn

Internal Product Review

The MHD112A-058-NP1-BN is a servo motor from Bosch Rexroth Indramat. It delivers 15.0 Nm continuous torque and 22.0 Nm holding brake torque, with liquid cooling, HSF digital encoder feedback and a keyed shaft. It finds uses in CNC machines, robotic arms, packaging lines and automation systems.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MHD112A-058-NP1-BN.
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