MHD090B-058
MHD Synchronous Motors
Technical Specifications
Continuous Torque at Standstill
12.0 Nm
Motor Length
B
Centering diameter
110 mm
Flange size
140 mm
Motor Size
090
Product Type
Servo Motor
Winding Code
058
Holding Brake
Factory Assigned
Housing Type
Factory Assigned
Motor Encoder
Factory Assigned
Output Direction of Power Connector
Factory Assigned
Output Shaft
Factory Assigned
Product Group
MHD
Frequently Asked Questions
What mounting constraints arise from the 140 mm flange size on the MHD090B-058?
The 140 mm flange requires compatibility with a matching motor mount or adapter plate. Improper flange matching can lead to shaft misalignment and premature bearing wear.
What thermal considerations apply when running the MHD090B-058 continuously at rated torque?
Continuous operation at rated torque requires sufficient airflow or heatsinking to manage motor temperature rise. Underventilated enclosures can trigger thermal protection or shorten insulation life.
Does the factory-assigned output shaft require special coupling considerations?
Yes, confirm shaft diameter, length, and keying to avoid backlash or stress concentration. Rigid or flexible couplings must match the shaft’s mechanical tolerances.
Is the holding brake on the MHD090B-058 sufficient for emergency stopping?
Factory-assigned brakes are generally designed for holding, not dynamic braking. Emergency stop loads must be handled by external braking systems or regenerative circuits.
What impact does a 12.0 Nm continuous standstill torque have on system design?
This value defines the motor’s holding capability without active motion, useful for vertical loads or tensioning systems. Designers must match the drive and brake system to sustain this torque without overheating.
Common Misspellings
MHD 090B 058
MHD 090B-058
MHD-090B-058
MHD090B058
MHDO9OB-O58
MHD90B-058
Internal Product Review
The MHD090B‑058 is a servo motor in Bosch Rexroth’s MHD synchronous line. It provides a continuous torque at standstill of 12.0 Nm, fits motor size 090 with length code B, and mounts on a 140 mm flange via a 110 mm centering diameter. Its housing is coated with a black prime varnish and meets IP65 protection.
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the MHD090B-058.
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