MKD112B-048-KG1-RN Bosch Rexroth Indramat
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MPN: R911284553
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The Bosch Rexroth Indramat MKD112B-048-KG1-RN is a servo motor from the MKD Synchronous Motors series featuring a flange size of 192 mm and a centering diameter of 130 mm. It provides a continuous torque at standstill of 28.0 Nm and includes a holding brake with 22 Nm torque. The motor has resolver feedback for position detection and a plain shaft design with a shaft seal.
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Product Description:
The MKD112B-048-KG1-RN is a servo motor manufactured by Bosch Rexroth Indramat as part of the MKD Synchronous Motors series. It is designed for closed-loop speed and position control in automated machining centers, transfer lines, and packaging stations. By combining permanent-magnet excitation with electronic commutation, the unit delivers consistent torque over a broad speed range while maintaining tight synchronization with the drive controller. Its mechanical and electrical interfaces follow industry standards, allowing direct integration into modular motion platforms used throughout industrial automation. This control behavior suits repeatable indexing and positioning tasks that require accurate motion over long duty cycles.
The motor uses a 130 mm centering pilot to keep the stator concentric with the machine frame, and the square flange measures 192 mm to match ISO bolt patterns for the 112 frame class. Continuous torque at standstill is 28.0 Nm, so the motor can support static loads such as pressing tools without overheating. Power and feedback leads exit on the right side through a sealed power connector, which can simplify cable routing in cabinets arranged for that orientation. Position and velocity signals are derived from resolver feedback integrated with the rotor, eliminating external transducers and supporting sinusoidal commutation during operation.
An internal brake supplies 22 Nm of static torque to help prevent axis drift when power is removed. Motion controllers receive absolute position over more than 4096 revolutions, so initial homing routines are not required after a restart. The output uses a plain shaft with a factory-installed shaft seal to support couplings or pulleys while helping keep lubricant out of the motor chamber. The sealed shaft arrangement also supports cleaner operation where the motor is mounted close to gearboxes or belt-driven machine elements. Electrically, winding code 048 indicates the coil resistance and inductance used with compatible drives, and it supports stable current control for this motor configuration.
