Product Description:

The MHD115C-058-NP1-BN is a servo motor produced by Bosch Rexroth Indramat for the MHD Synchronous Motors series. It supplies controllable rotary motion and positional data to industrial automation equipment through an internal digital servo feedback (HSF) encoder that uses an optical measuring method. The motor is configured for installation with its power connection on side B and uses a keyed shaft plus a 70.0 Nm holding brake for secure load retention when power is removed.

At standstill the motor delivers a continuous torque of 70.0 Nm, allowing extended holding or slow-feed tasks without thermal overload. The housing has an IP65 protection rating, so dust and water jets are kept away from internal parts. Heat is removed through liquid cooling; coolant circulating through the frame transfers losses to an external exchanger and helps keep winding temperatures within the F-class limit. Mounting occurs on a 192 mm square flange, which provides a stable interface for machine attachment while the centering pilot maintains concentricity. Closed-loop motion error is held within ±0.5 angular minutes, supporting contouring and repeatable index moves in multi-axis cells.

The mechanical interface also includes a 180 mm centering diameter that aligns the rotor with torque-transmitting components and helps reduce radial runout. Power reaches the stator windings through an output connector, and the encoder reports relative position to the drive. The windings use insulation class F, which permits conductor temperatures up to 155 °C and pairs with the specified operating ambient range of 0 to 40 °C. Winding code 058 matches the electrical characteristics used for motor size 115 and length code C, while the shaft seal blocks coolant splash. Storage is permitted from −20 to +80 °C, and installation is allowed up to 1000 m above mean sea level without derating.