KSD071C-0350-NN-S1-1G0-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat KSD071C-0350-NN-S1-1G0-NNNN is part of the KSD IndraDrive Mi Motors series and features a continuous standstill torque of 10.0 Nm and a maximum torque of 28.0 Nm. This motor is equipped with a plain shaft, natural convection cooling, and an optical single-turn encoder with a resolution of 128 × 2^13 per revolution. It is rated for a maximum current of 17.7 Amps and has a rotor inertia of 0.00173 kg·m².
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Product Description:
The KSD071C-0350-NN-S1-1G0-NNNN is an integrated servo motor from the KSD IndraDrive Mi Motors series manufactured by Bosch Rexroth Indramat. In decentralized automation layouts, this motor combines drive electronics with the mechanical section, reducing cabinet space requirements and wiring length. It is intended to position machine axes using high-resolution feedback while maintaining a narrow footprint on packaging, handling, and printing equipment.
The motor can sustain a continuous shaft load of 10.0 Nm at standstill, indicating the torque it can deliver continuously without exceeding its temperature limit. During acceleration or transient moves, the control electronics may draw up to 17.7 A, so upstream power links must accommodate this current. Torque increases in direct proportion to stator current because the electromagnetic torque constant is 1.85 Nm/A at 20 °C. Precise commutation is enabled by an optical single-turn encoder that delivers 128 × 213 increments per revolution, allowing tight speed control and precise positioning when paired with a fine-pitch mechanical system. The back electromotive force at rated conditions is 114.0 V/1000 rpm, which helps determine the DC bus voltage needed for a target speed. Heat is dissipated through the housing by natural convection, eliminating the need for cooling fans.
The motor has a peak torque capability of 28.0 Nm, permitting brief overloads during indexing moves without exceeding magnetic saturation. Dynamic behavior is influenced by a rotor inertia of 0.00173 kg·m², which supports rapid velocity changes while limiting jerk transmitted to the load. The winding has a thermal time constant of 15 min, providing tolerance for short duty-cycle spikes before temperature monitoring requires derating. A plain shaft provides a straightforward interface for compatible couplings. The shaft includes a DS M10 centering hole for mechanical alignment during installation. Its single-turn absolute position range allows the controller to determine the angular position within one revolution after startup.
