MHD115B-058-PG1-RN Bosch Rexroth Indramat
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MPN: R911287350
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The Bosch Rexroth Indramat MHD115B-058-PG1-RN is a servo motor from the MHD Synchronous Motors series with liquid cooling and a 192 mm flange size. It delivers 50.0 Nm continuous torque at standstill and features a digital servo feedback encoder with absolute position detection. The motor includes a plain shaft with a shaft seal and comes equipped with a holding brake rated at 70.0 Nm.
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Product Description:
The MHD115B-058-PG1-RN belongs to the MHD Synchronous Motors series produced by Bosch Rexroth Indramat. As a servo motor it delivers closed-loop rotary motion for positioning axes, packaging stations, and transfer lines that need repeatable speed and torque. The integrated digital encoder feeds rotor position data to the drive, allowing the controller to synchronize motion with other devices in an industrial automation cell.
A centering diameter of 180 mm aligns the housing with machine frames, while the flange face measures 192 mm, giving a stable bolt pattern for the size 115 frame. The motor develops 50.0 Nm of continuous standstill torque, so it can hold heavy loads without overheating when stationary. Heat generated by that load is extracted through Liquid cooling, enabling higher continuous ratings than air-cooled designs. Power enters through a right-side Power connector, simplifying cable routing in cabinets arranged to the left of the axis. A Plain shaft is supplied, allowing direct coupling to gearboxes or pulleys without keyways that could introduce backlash. The built-in holding brake engages automatically when power is removed and is sealed from coolant by an internal shaft seal.
The brake supplies 70.0 Nm of static torque, so vertical or overhung loads remain fixed during an E-stop. Absolute feedback exceeding >4096 revolutions ensures the drive knows exact rotor angle after a power cycle, eliminating homing moves and reducing cycle times. Winding code 058 defines the electrical resistance and inductance values the compatible drive expects, while motor length B balances torque capability with envelope size for retrofit situations. Together, these attributes let the axis deliver precise, thermally stable motion control in continuous-duty production environments.
Frequently Asked Questions about MHD115B-058-PG1-RN:
Q: What is the continuous standstill torque provided by the MHD115B-058-PG1-RN motor?
A: This motor provides a continuous torque of 50.0 Nm at standstill.
Q: What is the holding brake torque available on the MHD115B-058-PG1-RN?
A: The MHD115B-058-PG1-RN is equipped with a holding brake rated at 70.0 Nm.
Q: What type of housing cooling is featured on the MHD115B-058-PG1-RN motor?
A: This model uses liquid cooling for its housing, supporting efficient heat dissipation.
Q: What type of encoder does the MHD115B-058-PG1-RN motor use?
A: A digital servo feedback system with an integrated encoder is included for precise motion control.
Q: What is the shaft design of the MHD115B-058-PG1-RN, and does it include a shaft seal?
A: The shaft on this motor is a plain design and comes with a shaft seal.
