SR-A1.0012.060-00.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A1.0012.060-00.000 is part of the SR Synchronous Servo Motors series and has a mass of 1.9 kg with a motor length of 176 mm. It features a resolver feedback type with an accuracy of ±10 angular minutes and a feedback resolution of 8192 increments per revolution. The servo motor has a rated speed of 6000 min^-1 and provides a locked-rotor torque of 1.2 Nm.
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Product Description:
The SR-A1.0012.060-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. It is intended for closed-loop positioning and velocity tasks in industrial automation where compact mechanics and high rotational speed are required. Integrated resolver feedback lets the controller track rotor position in real time, so the motor can execute repeatable indexing, coordinated motion, or tension control on packaging, assembly, and material-handling axes.
The motor reaches a rated speed of 6000 rpm, allowing fast cycle times when coupled to precision gear stages or direct-drive loads. A torque constant of 0.64 Nm/A provides a proportional rise in output torque as phase current increases, giving the drive a linear gain for current loops. During startup or a jam condition, the stator draws a locked-rotor current of 1.9 A. At that current, the shaft produces a locked-rotor torque of 1.2 Nm, which can be considered when sizing fuses and mechanical clutches. The resolver provides a feedback resolution of 8192 increments per revolution with a feedback accuracy of ±10 angular minutes, supporting tight position tolerances without external encoders. A shaft machined to a diameter of 11 mm and a length of 23 mm has a 4 h9 keyway for transmitting torque. The housing length of 176 mm keeps the motor envelope compact, while the output end permits an axial load of up to 33 N.
The assembly weighs 1.9 kg, making it suitable for moving-axis gantries where low moving mass reduces motor effort and improves dynamic response. Rotor inertia is only 0.63 × 10⁻⁴ kg·m², so the drive can command rapid acceleration without excessive overshoot. A shock resistance of 6 g allows the motor to withstand impacts that can occur during transport or operation. The keyway tolerance supports a secure mechanical connection between the shaft and the attached coupling. Sealed bearings protect the rotating components during continuous duty, while the resolver wiring helps maintain reliable feedback signal transmission. These features support accurate alignment and stable operation across repetitive industrial motion cycles.
