SR-A4.0230.030-00.030 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A4.0230.030-00.030 is a synchronous servo motor in the SR Synchronous Servo Motors series. It features a rated speed of 3000 min-1 and a locked-rotor torque of 22 Nm, with a protection type of IP67. The motor has a resolver encoder type with 8192 increments per revolution and an encoder precision of ±10 arcminutes.
Internal Product Review
The SR-A4.0230.030-00.030 is a Bosch Rexroth Indramat synchronous servo motor with IP67 protection and a rated speed of 3000 min-1. Resolver feedback with 8192 incr/rev supports stable position tracking and clean motion control. A 20000 h bearing life makes the motor a strong long-service option for demanding servo axes.
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Product Description:
The SR-A4.0230.030-00.030 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. It supplies rotational power to automation axes that require closed-loop speed and position control and connects directly to drive controllers in packaging, printing, or material-handling machines. At its rated speed of 3000 rpm, the unit delivers controllable torque for cyclic tasks, while its sealed housing permits installation on lines exposed to washdowns or airborne coolant.
The cylindrical frame measures 341 mm in length and centers on a 130 mm j6 pilot, allowing direct mounting to compatible gearboxes. A 24 mm diameter shaft with a length of 50 mm uses an A8 × 7 × 40 mm key to transfer torque. The enclosure meets IP67, so internal components remain protected against dust and water during washdowns. Continuous operation is supported by a torque constant of 1.57 Nm/A, meaning each ampere of phase current produces a proportional amount of drive torque. When the rotor is blocked, the motor can withstand a locked-rotor current of 14 A and produce a locked-rotor torque of 22 Nm without demagnetization. The rotor inertia is 54 × 10⁻⁴ kg·m², supporting controlled acceleration and helping limit overshoot during rapid indexing moves.
Position feedback is provided by a resolver with a resolution of 8192 increments per revolution and an accuracy of ±10 arcminutes, giving the controller fine position increments for velocity and positioning loops. The bearing sets have a service life of 20,000 hours, supporting extended operation under suitable load and installation conditions. The assembly can withstand on-machine impacts of up to 6 g without a loss of performance. Its resolver feedback allows the drive to monitor rotor position throughout each operating cycle. The keyed shaft provides positive engagement with compatible couplings, while the centered pilot helps maintain alignment between the motor and connected equipment.
