MHD093B-058-PG1-RA Bosch Rexroth Indramat
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MPN: R911296755
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The Bosch Rexroth Indramat MHD093B-058-PG1-RA is part of the MHD Synchronous Motors series and features a continuous torque at standstill of 17.5 Nm with a holding brake torque of 22.0 Nm. This servo motor comes with IP65 degree of protection, natural convection cooling, and uses digital servo feedback with an integrated encoder for absolute position detection. It is equipped with a plain shaft, a shaft seal, and accommodates ambient temperatures from 0 to 40 degrees Celsius.
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Product Description:
The MHD093B-058-PG1-RA is a brushless servo motor built by Bosch Rexroth Indramat and assigned to the MHD Synchronous Motors series. Designed for closed-loop drive packages, the motor couples directly to ball screws, gearboxes, or process shafts where repeatable rotary motion is required. Digital servo feedback from the integrated encoder allows the connected drive controller to adjust current and frequency in real time, enabling accurate positioning tasks in assembly lines, packaging systems, and gantry axes.
Its continuous torque at standstill reaches 17.5 Nm, giving the axis enough static holding force to counter process loads without overheating. A sealed housing rated at IP65 blocks dust ingress and low-pressure water jets, so the unit can be mounted directly on the machine frame. Heat is removed by natural convection, so no external blower or liquid circuit is required. The windings use Class F insulation, which permits winding temperatures up to 155 °C before thermal limits are approached. Operation is permitted in ambient temperatures from 0 to 40 °C, which fits typical factory floor climates; outside that range, derating or additional cooling is necessary. The flange pattern of 140/150 mm aligns with common mounting interfaces, and winding code 058 indicates the electrical constants used by the drive parameter set.
For power-off safety on vertical axes, the integrated brake supplies 22.0 Nm of holding torque and engages automatically when drive excitation is removed. The optical measuring system limits positional deviation to no more than ±0.5 angular minutes, and its multi-revolution capability is absolute (>4096 revolutions), so reference does not need to be re-established after shutdown. During installation, the 2 k6 centering pilot of 130 mm aligns the stator concentrically with the machine housing. Mains conductors are routed through a right-side connector, simplifying cable routing on gantry carriages and articulated modules. Operation is permitted up to 1000 m above sea level.
Frequently Asked Questions about MHD093B-058-PG1-RA:
Q: What is the continuous standstill torque rating for the MHD093B-058-PG1-RA motor?
A: This model provides a continuous torque at standstill of 17.5 Nm.
Q: Does the MHD093B-058-PG1-RA serve as a holding brake, and what is its torque?
A: The MHD093B-058-PG1-RA features a holding brake with a torque of 22.0 Nm.
Q: What type of feedback and position detection does the MHD093B-058-PG1-RA motor use?
A: This motor uses digital servo feedback with an integrated encoder for absolute position detection over more than 4096 revolutions.
Q: What shaft design and seal features does the MHD093B-058-PG1-RA have?
A: The shaft of this motor is a plain shaft and is also equipped with a shaft seal.
Q: What level of environmental protection does the MHD093B-058-PG1-RA offer?
A: The degree of protection for this motor is rated at IP65, providing resistance to dust and low-pressure water jets.
