MHD115B-058-PP1-AA Bosch Rexroth Indramat
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MPN: R911288385
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The Bosch Rexroth Indramat MHD115B-058-PP1-AA is a servo motor from the MHD Synchronous Motors series with a continuous torque at standstill of 50 Nm and a holding brake torque of 70 Nm. It features a keyed shaft with shaft seal, IP65 degree of protection, and natural convection housing cooling. The motor is equipped with a digital servo feedback encoder with absolute position detection and supports a maximum setup height of 1000 meters above mean sea level.
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Product Description:
The MHD115B-058-PP1-AA is a permanent-magnet AC servo motor manufactured by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It converts drive current into controlled rotary motion for automated handling, packaging, and machining stations that require repeatable position and velocity control. The design follows the 115 frame class and the intermediate B length code, so its mechanical dimensions remain consistent within the platform. An integral keyed shaft enables direct coupling to gearboxes or load pulleys without additional adapters. This motor type is well suited for servo axes that require smooth acceleration and repeatable stopping behavior.
The motor delivers a continuous standstill torque of 50.0 Nm, giving machine axes the ability to hold static loads without external gearing. Its housing is rated to IP65, so the internal windings are protected against dust ingress and water jets. A mounting flange of 192 mm aligns with common machine interfaces, and heat produced by the windings is removed by natural convection, eliminating the need for forced-air accessories. Reliable operation is permitted between 0 to 40 °C, and the F-class insulation supports conductor temperatures up to 155 °C. Position data are gathered optically by a digital servo feedback encoder that reports absolute multi-turn values exceeding 4096 revolutions. Power conductors exit on side A through an output connector.
The motor includes an integrated holding brake rated at 70.0 Nm, which clamps the rotor when power is removed and helps support vertical loads without drift. This brake is useful on axes where the load must remain in place after shutdown. System accuracy of ± 0.5 angular minutes supports precision contouring when the motor is paired with a suitable drive. The centering pilot measures 180 mm, helping align the flange with the machine frame. Installation is allowed up to 1000 m above sea level without derating. A shaft seal helps retain lubricant, and winding code 058 corresponds to electrical characteristics matched to the drive parameters.
