MKD112B-048-KG1-BN Bosch Rexroth Indramat
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MPN: R911268914
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The Bosch Rexroth Indramat MKD112B-048-KG1-BN is a servo motor from the MKD Synchronous Motors series equipped with a resolver feedback and integrated encoder. It features a continuous torque at standstill of 28 Nm, a holding brake torque of 22 Nm, and comes with a plain shaft and flange size of 192 mm. The motor has a centering diameter of 130 mm and supports absolute position detection for over 4096 revolutions.
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Product Description:
The MKD112B-048-KG1-BN is an AC servo motor built by Bosch Rexroth Indramat for the MKD Synchronous Motors series. Intended for closed-loop positioning and speed control, it converts drive current into rotary motion for packaging, handling, and machining axes. Direct coupling to ball screws, belts, or gearboxes makes it suitable for medium-inertia feed axes that reverse frequently without overshoot. The synchronous design also supports smooth torque delivery during changing speed commands and repeated direction changes.
The motor sustains 28.0 Nm of continuous standstill torque, allowing workholding tables or vertical loads to remain powered without thermal overload at zero speed. A square 192 mm mounting flange interfaces with standard IEC frames, while the 130 mm centering diameter aligns the stator housing concentrically on the machine wall to minimize radial runout. Power and feedback leads exit on Side B at the rear face, which can simplify cable routing when cabinets are installed behind the axis. A single output connector carries both power and resolver signals, reducing wiring points and enclosure penetrations. The winding code of 048 sets coil resistance and inductance so that the paired drive amplifier can deliver rated current without saturation during cyclic acceleration.
Dynamic stopping and power-off holding are managed by a brake that delivers 22 Nm of locking torque. This internal brake engages automatically when control power is removed, securing loads on lifting or indexing axes. A plain shaft transmits motion without keyways, favoring shrink-fit or clamp couplings that reduce backlash at high reversal rates. Position feedback comes from a resolver, and the integrated electronics provide absolute feedback for more than 4096 revolutions, enabling the controller to recover the exact rotor angle after an outage without a homing cycle. A shaft seal is fitted to block coolant or dust ingress along the spindle interface, and the motor length code B balances inertia against peak torque during repeated servo motion.
Frequently Asked Questions about MKD112B-048-KG1-BN:
Q: Does the MKD112B-048-KG1-BN motor have a holding brake and what is its torque rating?
A: The MKD112B-048-KG1-BN motor is equipped with a holding brake that provides 22 Nm of holding torque.
Q: What encoder and position detection system is used in the MKD112B-048-KG1-BN motor?
A: This model features resolver feedback with an integrated encoder for absolute position detection exceeding 4096 revolutions.
Q: What is the continuous standstill torque of the MKD112B-048-KG1-BN motor?
A: The MKD112B-048-KG1-BN provides a continuous torque at standstill of 28.0 Nm.
Q: What type of shaft design does the MKD112B-048-KG1-BN servo motor have?
A: A plain shaft with a shaft seal is used in this motor, supporting applications requiring contaminant protection.
Q: Where is the electrical connection located on the MKD112B-048-KG1-BN motor and what is its type?
A: Connections on this motor are directed to Side B via an output connector for convenient installation.
