MHD115B-058-NP1-RA Bosch Rexroth Indramat
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MPN: R911289800
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The Bosch Rexroth Indramat MHD115B-058-NP1-RA is a servo motor from the MHD Synchronous Motors series. It provides a continuous torque at standstill of 50.0 Nm, features a keyed shaft, and has IP65 protection. The motor has a flange size of 192 mm, comes with a holding brake rated at 70.0 Nm, and uses digital servo feedback for encoder functionality.
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Product Description:
The MHD115B-058-NP1-RA is a servo motor manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It acts as a closed-loop rotary actuator that delivers precise position and speed control in automated assembly lines, gantry stages, and packaging equipment. The unit combines a keyed output shaft with an integrated holding brake and uses optical measurement for position feedback, making it suitable for tasks that demand repetitive accuracy and controlled deceleration in industrial automation cells.
The motor provides a continuous standstill torque of 50.0 Nm, enabling loaded axes to remain energized without thermal overload. Its enclosure carries an IP65 degree of protection, which blocks dust and withstands low-pressure water jets so the motor can be mounted outside a sealed cabinet. Position data are generated by digital servo feedback (HSF), allowing high-speed interpolation by the drive. Mechanical integration is aided by the 192 mm square mounting flange, a 180 mm centering diameter, and a right-hand power connector. Insulation class F supports 155 °C winding temperatures, and size code 115 with length code B indicate the overall frame envelope.
The holding brake secures the shaft with 70.0 Nm of torque when power is removed, preventing drift on vertical or suspended loads. Heat is dissipated through natural convection, eliminating the need for forced cooling and allowing installation heights up to 1000 m above mean sea level. The storage range of -20 to +80 °C protects the unit during shipping, while operation is specified between 0 and 40 °C. Closed-loop accuracy reaches ± 0.5 angular minutes, and the keyed shaft with a shaft seal transmits torque while keeping lubricants away from the stator interior. Relative position detection is managed by the optical encoder, and the winding code 058 links the motor to matching drive parameters.
Frequently Asked Questions about MHD115B-058-NP1-RA:
Q: What shaft design does the MHD115B-058-NP1-RA servo motor have?
A: The MHD115B-058-NP1-RA motor features a keyed shaft for secure mechanical connection.
Q: Does the MHD115B-058-NP1-RA motor include a holding brake?
A: This model is equipped with a holding brake that delivers a torque of 70.0 Nm.
Q: What type of encoder is used in the MHD115B-058-NP1-RA motor?
A: The MHD115B-058-NP1-RA comes with digital servo feedback (HSF) for position detection.
Q: What level of ingress protection does the MHD115B-058-NP1-RA motor provide?
A: This servo motor is protected to IP65, meaning it is dust tight and protected against water jets.
Q: What is the continuous torque rating of the MHD115B-058-NP1-RA at standstill?
A: The MHD115B-058-NP1-RA achieves a continuous torque of 50.0 Nm at standstill.
