SR-A2.0020.030-10.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A2.0020.030-10.000 is a synchronous servo motor in the SR Synchronous Servo Motors series and weighs 5.5 kilograms. It features a flange size of 100 mm, shaft diameter of 14 mm, and a rated speed of 3000 min^-1. The motor uses a resolver encoder with a resolution of 8192 increments per revolution and a torque constant of 1.5 Nm per ampere.
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Product Description:
The SR-A2.0020.030-10.000 synchronous servo motor is produced by Bosch Rexroth Indramat within the SR Synchronous Servo Motors series. It serves as a compact rotary actuator for industrial automation applications that require precise velocity and torque control to synchronize conveyor sections, indexing tables, or small robotic joints. The motor follows the IM B5 construction type, giving it a flange-mounted face that simplifies alignment with gearboxes or direct-drive loads. A resolver supplies shaft-position data to the drive controller for closed-loop regulation.
The motor reaches a rated speed of 3000 rpm, enabling fast cycle times without exceeding the speed limits of typical 1:1 mechanical couplings. Each ampere of stator current produces 1.5 Nm/A of electromagnetic torque, which helps the drive apply suitable current limits. Position feedback has a resolution of 8192 increments per revolution, so the controller receives fine-grained angular data for smooth interpolation. During startup, the rotor can deliver a locked-rotor torque of 2.0 Nm and draw up to 1.3 A under the stalled condition. These values allow protective trip thresholds to be set so that sufficient breakaway force is available without causing excessive thermal stress. The resolver has an accuracy of ±10 angular minutes, supporting moderate positioning tolerances. The smooth shaft profile avoids the stress concentrations associated with a keyway when the shaft is secured by a collet or friction hub.
Dynamic response is influenced by a rotational inertia of 3 × 10^-4 kg·m², which permits rapid acceleration while helping the rotor resist minor load disturbances. The housing weighs 5.5 kg without a holding brake, keeping the supported mass low on vertical or cantilevered axes. A flange diameter of 100 mm matches standardized machine interfaces. The output journal measures 14 mm in diameter and 30 mm in length, allowing standard couplings to be fitted without adapters. The motor has an overall body length of 198 mm, allowing installation in compact enclosures while leaving space for power and feedback connectors.
