R911276306 (MHD093C-058-NG1-BN)
MHD Synchronous Motors
Technical Specifications
Weight
23.5 kilograms
Motor Frame Length
396 millimeters
Flange Size
140 millimeters
Centering Diameter
130 millimeters
Shaft Diameter
32 millimeters
Mounting Holes Diameter
11 millimeters
Encoder Connector
90-degree rotatable
Power Connector Output Direction
Side B
Holding Brake Rated Voltage
24 Volts DC
Holding Brake Rated Current
0.71 Amps
Holding Brake Connection time
25 milliseconds
Holding Brake Disconnection Time
50 milliseconds
Holding Brake Weight
1.1 kilograms
Cooling Method
Natural convection or surface
Coolant Inlet Temperature Range
10 to 40 degrees Celsius
Required Coolant Discharge
1.4 liters per minute
Liquid Cooling Duct
0.06 liters
Continuous Torque at Standstill
43.7 Nm
Continuous Current at Standstill
53.8 Amps
Rated Speed
3500 RPM
Rated Torque
32 Nm
Rated Current
27.9 Amps
Output
14.4 kilowatts
Rated Voltage
317 Volts
Rated Frequency
233 Hertz
Minimum Power Cable Cross Section
6 mm2
Motor Time Constant with Liquid Cooling
25 minutes
Feedback
Digital Servo
Shaft Feature
Plain with sealing ring
Protection Category
IP65
Surface
Matte black paint
Frequently Asked Questions
Why is a 130 mm centering diameter important for the MHD093C-058-NG1-BN motor’s mounting stability?
The 130 mm centering diameter ensures precise alignment with the machine flange. It minimizes vibration and mechanical stress, contributing to longer motor and coupling life.
Why is the digital servo feedback (HSF) encoder used in the MHD093C-058-NG1-BN?
The HSF encoder provides precise position and speed data for accurate motor control. This ensures smoother motion, higher repeatability, and enhanced synchronization with the drive system.
How does the sealed plain shaft design benefit the MHD093C-058-NG1-BN servo motor?
The sealed plain shaft prevents dust and liquid ingress, enhancing durability in demanding industrial environments. It also reduces maintenance needs and ensures consistent torque delivery.
What is the advantage of the side B electrical connection on the MHD093C-058-NG1-BN?
The side B connection allows flexible cable routing and simplifies installation in compact machinery layouts. It improves accessibility for maintenance and reduces wiring stress.
How does relative position detection affect the operation of the MHD093C-058-NG1-BN?
Relative detection provides incremental position feedback, suitable for systems where homing or reference positioning is performed at startup. This helps balance cost and performance for many automation applications.
Common Misspellings
MHD093C058NG1BN
MHD093C 058 NG1 BN
mhd093c-058-ng1-bn
MHD93C-058-NG1-BN
Internal Product Review
The MHD093C-058-NG1-BN servo motor from Bosch Rexroth is used in automation systems, CNC machines, and packaging lines for precise motion control. It delivers 23 Nm continuous torque at standstill with 22 Nm holding brake torque and liquid cooling. The motor’s digital servo feedback and plain shaft design ensure accurate relative positioning.
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