Product Description:

The SR-A5.0700.020-00.016 is a Bosch Rexroth Indramat servo unit from the SR Synchronous Servo Motors series. It is a brushless servomotor intended for numerically controlled machinery, where it converts the regulated DC output of an Indramat drive into tightly controlled shaft rotation. The motor has an IM B5 construction style, allowing it to mount on a machine wall through its end flange. This arrangement supports compact axis layouts in packaging, printing, and material-handling equipment while providing a rigid connection to the machine structure.

Electrical performance centers on a DC-link bus rated at 670 V, which is the maximum bus voltage supported by the associated drive system. When the shaft is locked, the windings can accept up to 34 A RMS, producing a stall torque of 69 Nm for high breakaway loads. Continuous torque generation uses a constant of 2.0 Nm/A, so each ampere of phase current produces predictable torque at the coupling. A resolver delivers position data with an interpolated resolution of 8,192 increments per revolution, and its angular error remains within ±10 arc-minutes for precise contour tracking. Two embedded NTC temperature sensors report winding temperature to the drive, while the mounting surface conducts thermal energy into the machine frame.

The flange has a diameter of 190 mm, supporting direct connection to compatible planetary gearboxes. Acoustic output is limited to 58 dB(A) at 1 m, helping reduce operating noise near the machine. Nominal operation reaches a speed of 2,000 rpm, allowing rapid indexing without exceeding the intended bearing limits. The rotor and housing withstand impacts of up to 6 g, providing resistance to mechanical shock during industrial operation. The motor has a minimum service life of 20,000 hours under rated operating conditions. Proper mounting through the B5 face maintains shaft alignment, and resolver feedback allows the drive to control vibration and position drift within process tolerances.