MHD115B-058-NP0-RA Bosch Rexroth Indramat
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MPN: R911327659
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The Bosch Rexroth Indramat MHD115B-058-NP0-RA is a servo motor from the MHD Synchronous Motors series. It has a continuous standstill torque of 50.0 Nm and uses natural convection for housing cooling. This motor features a keyed shaft, digital servo feedback encoder, and IP65 protection. The flange size is 192 mm and it operates within an ambient temperature range of 0 to 40 °C.
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Product Description:
The MHD115B-058-NP0-RA is a servo motor produced by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It converts electrical energy from a drive controller into precisely regulated mechanical motion for positioning tasks in automated machinery and handling systems. The keyed shaft transfers torque to couplings or gearboxes, and the power connector on the right side can simplify cable routing where installation space beside the motor is limited. The unit is supplied without a holding brake, so the axis must rely on drive torque or an external holding device when power is removed.
The motor has a continuous standstill torque of 50.0 Nm, providing steady force for large inertial loads without overheating. An IP65 enclosure helps keep out dust and water jets, so the motor can be mounted outside sealed cabinets when the surrounding machine design permits it. A 192 mm square flange provides a standardized mounting face, and cooling is handled by natural convection, which avoids external fans and keeps the housing surface unobstructed. Position feedback comes from a digital servo feedback (HSF) encoder with optical sensing that reports relative position data to the drive, while Class F insulation supports thermal durability and winding code 058 identifies the matching electrical setup. The centering diameter is 180 mm, which helps align the motor with the driven equipment during installation.
The feedback system supports repeatability of ± 0.5 angular minutes, which helps the motor perform fine incremental moves on precision axes. The permitted ambient range is 0 to 40 °C, and storage is allowed from -20 to +80 °C without damage under proper conditions. Installation is allowed up to 1000 m above MSL before derating is required. The motor uses size 115 with B length, and the shaft seal at the housing opening helps limit contaminant entry during normal operation. These operating limits suit typical indoor industrial applications where repeatable motion and stable thermal behavior are required.
Frequently Asked Questions about MHD115B-058-NP0-RA:
Q: What is the continuous torque at standstill for the MHD115B-058-NP0-RA motor?
A: This model provides a continuous torque of 50.0 Nm at standstill.
Q: What type of encoder does the MHD115B-058-NP0-RA motor utilize?
A: The MHD115B-058-NP0-RA motor uses a digital servo feedback encoder (HSF) for position detection.
Q: What is the IP rating for the MHD115B-058-NP0-RA motor?
A: This model is constructed with a degree of protection rated at IP65.
Q: What type of shaft design does the MHD115B-058-NP0-RA motor feature?
A: The MHD115B-058-NP0-RA has a keyed shaft design and includes a shaft seal.
Q: Does the MHD115B-058-NP0-RA motor include a holding brake?
A: This model does not have a holding brake equipped.
