Product Description:

The SR-A2.00.0041.030-00.000 from Bosch Rexroth Indramat is a synchronous servo motor in the SR Synchronous Servo Motors series. This rotary actuator is intended for closed-loop motion stages, pick-and-place heads, and similar automation axes where stable torque and accurate position feedback are required. It converts controller current into mechanical rotation for industrial machinery and supports precise axis movement in automated systems. Its synchronous design makes it suitable for applications that need controlled speed changes, repeatable positioning, and stable torque delivery throughout the motion cycle. When paired with a digital servo drive, it supports high-speed cycles and consistent load regulation.

When used with a compatible drive, the motor operates from a bus potential of 670 V, giving the windings adequate overhead for rapid current rise. A torque constant of 1.43 Nm/A links current to output torque, while a locked-rotor current of 2.8 A corresponds to a stall torque of 4.0 Nm, which is useful for indexing tables that start under load. Positional data come from an integrated resolver whose raw signal is interpolated to 8192 increments per revolution. With an accuracy of ±10 angular minutes, the feedback system supports repeatable part placement without an additional encoder. This feedback arrangement gives the drive the rotor position information needed for commutation and closed-loop control, and a feather key A5 × 5 × 25 secures couplings to the Ø14 × 30 mm shaft and transfers commanded torque.

During sustained operation, the rotor can spin at 3000 rpm. Rotor inertia is 6 × 10⁻⁴ kg·m², and the housing mass is 7.1 kg, which helps the motor respond quickly in compact axis assemblies. The flange interface measures 100 mm, accepts four through-bolts, and permits an axial shaft load of 70 N. A protection rating of IP67 shields the 233 mm long frame from dust and temporary immersion, so the motor can be mounted directly on wash-down tooling. The keyed shaft and flange mounting support direct coupling to machine elements in enclosed production equipment.