SR-A4.0230.060-10.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A4.0230.060-10.000 is a servo motor from the SR Synchronous Servo Motors series. It features a 142 mm flange size, a smooth 24 x 50 mm shaft, and a protection rating of IP67. The motor offers a rated speed of 6000 min^-1 and a torque constant of 0.88 Nm/A, with resolver feedback that provides a resolution of 8192 increments per revolution.
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Product Description:
The SR-A4.0230.060-10.000 synchronous servo motor is produced by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. This motor is built for industrial automation axes that require rapid indexing and repeatable speed control, delivering mechanical power through a smooth Ø24 × 50 mm shaft while an integrated resolver reports rotor position. A pair of NTC thermal sensors monitors winding temperature so the connected drive can limit current before the insulation reaches its thermal limit. The housing has an overall length of 341 mm, allowing the motor to fit midsize machinery frames without requiring excessive axial space.
The power section is designed for a DC link of 670 V, enabling the drive to reach the motor’s rated speed of 6000 rpm without field weakening. Rotor position is digitized at 8192 increments per revolution, and feedback accuracy remains within ±10 angular minutes to support precise velocity and position control. During locked-rotor operation, the stator draws 25 A and develops 22 Nm of stall torque, indicating the motor’s zero-speed load capability. The torque constant is 0.88 Nm/A, allowing the controller to estimate output torque directly from phase current and regulate load response during acceleration or steady operation.
Mechanical integration uses a 142 mm square flange that matches DIN mounting interfaces, providing a stable connection to the machine frame. The housing has an IP67 protection rating, sealing the stator against dust and temporary immersion while protecting the internal feedback and thermal monitoring components. System inertia calculations use the rotor’s mass moment of 54 × 10⁻⁴ kg·m², which provides a balance between dynamic response and load stability. Internal airflow paths move heat toward the exterior surface during high-speed operation, helping the housing dissipate thermal energy generated in the stator windings.
