Product Description:

The SR-A2.0026.060-14.000 synchronous servo motor is produced by Bosch Rexroth Indramat as part of the SR Synchronous Servo Motors series. It is designed for closed-loop positioning and velocity control on compact gantries, pick-and-place heads, and transfer axes, where electrical input from a drive is converted into controlled mechanical rotation. The motor includes resolver feedback for rotor position monitoring and an electromechanical holding brake for static load retention. Its compact housing allows multiple axes to be installed in confined machine spaces without sacrificing motion control capability.

During continuous operation, the motor reaches 6000 rpm, which suits high-throughput indexing tasks. A torque constant of 0.78 Nm/A links phase current to developed torque, so 3 A produces about 2.3 Nm before saturation. The rotor and encoder assembly has an inertia of 4 × 10⁻⁴ kg·m², which supports rapid acceleration when the drive delivers the locked-rotor current of 3.5 A. At stall, that current produces a locked-rotor torque of 2.7 Nm, helping the axis resist short-term load changes while control loops remain active. Position feedback comes from a resolver with 8192 increments per revolution and an accuracy of ±10 angular minutes. The flange measures 100 mm and includes four tapped holes for direct attachment to gearbox adapters or machine plates.

The integrated holding brake provides 3.2 Nm of static torque and draws 0.56 A from a nominal 24 V control line. With the brake and resolver installed, the assembly weighs 6.5 kg and has an overall length of 229 mm from the end bell to the connector. These values help confirm payload and clearance in compact axis layouts. The motor has a smooth shaft that measures 14 mm in diameter and 30 mm in length, which supports coupling to precision collets or compression hubs while minimizing runout.