Product Description:

Bosch Rexroth Indramat produces the KSD071C-0350-NN-S1-1P0-NNNN as part of the KSD IndraDrive Mi Motors series. This integrated servo motor combines drive electronics and a synchronous motor in one housing, enabling decentralized installation on machine frames. In automated cells, it converts electrical power into commanded rotary motion at the axis. The unit relies on natural convection cooling and follows the B5 flange mounting style, so it bolts directly to gearboxes or fixtures. Position is measured by an optical single-turn encoder that sends absolute angle data to the drive network.

The motor reaches a rated shaft speed of 3500 rpm, which establishes the electrical frequency required for nominal operation. It can deliver up to 28.0 Nm of torque during acceleration or short overloads. A torque constant of 1.85 Nm/A links phase current to the torque produced by the motor, simplifying controller tuning. Dynamic response is influenced by a rotor inertia of 0.00173 kg·m², which helps determine acceleration behavior during direction changes. Closed-loop accuracy is enhanced by an encoder resolution of 128 × 2^13 counts/rev, providing dense feedback increments for precise positioning.

The motor provides a continuous stall torque of 10.0 Nm with a 60 K temperature rise, allowing the shaft to hold static loads without additional cooling equipment. The back electromotive force corresponds to a voltage constant of 114.0 V/1000 rpm, so the drive bus must provide sufficient voltage for full-speed operation. The bearing design accepts up to 40 N of axial thrust from connected mechanical components. Thermal response is characterized by a 15 min time constant, meaning the winding temperature changes gradually as the motor load varies. A 10 × 8 × 45 mm key provides positive engagement between the shaft and compatible couplings, helping transmit torque without relying solely on friction.