Product Description:

The SR-A2.0020.060-10.000 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SR Synchronous Servo Motors series. As a compact rotary actuator, it converts controlled stator currents into mechanical torque for precise position or velocity control in automated tooling, assembly equipment, and handling stations. An integrated resolver provides electrical feedback, allowing the associated drive to close motion loops with minimal latency and strong immunity to electrical interference.

At a rated speed of 6000 rpm, the motor supports high-cycle operations that require rapid indexing without overspeeding the mechanical drivetrain. The electromagnetic design provides a torque constant of 0.74 Nm/A, so each ampere supplied by the drive contributes predictable torque for feedforward control. The resolver provides an interpolated resolution of 8192 increments per revolution and an accuracy of ±10 angular minutes, giving the controller fine positional granularity during movement. A square mounting interface with a 100 mm flange and an IM B5 face orientation allows the unit to bolt directly to gearboxes or machine frames. When the rotor is blocked, the motor can resist up to 2.0 Nm of torque during clamping or homing operations.

The motor body is 198 mm long and has a mass of 5.5 kg, allowing installation where available mounting space is limited. Its dynamic response is influenced by a rotor inertia of 3 × 10⁻⁴ kg·m², which permits quick acceleration while smoothing small load disturbances. Power is transmitted through a keyed shaft measuring 14 × 30 mm, and a 95 mm pilot diameter supports concentric mounting. During startup, the drive may supply a locked-rotor current of 2.7 A to overcome static friction and initiate movement. Proper alignment of the keyed shaft and pilot helps prevent uneven loading on the motor bearings and connected components.