Product Description:

The SR-A0.0008.060-14.000 is a compact synchronous servo motor produced by Bosch Rexroth Indramat for the SR Synchronous Servo Motors series. The unit is intended for closed-loop positioning and velocity tasks in small pick-and-place axes, indexing tables, or light robotic joints where rapid acceleration and repeatable motion are required. Resolver signals travel through a shielded connector opposite the power leads, which helps keep feedback wiring orderly inside compact cabinets.

A circular mounting interface with a flange of 55 mm sets its frame size and simplifies attachment to gearheads or machine plates. The integrated holding brake operates on 24 V DC and draws 0.5 A; it supplies 1.0 Nm of holding torque to secure vertical loads whenever power is removed. During normal operation, the permanent-magnet stack converts stator current to mechanical torque with a constant of 0.67 Nm/A, which allows direct current-to-torque scaling in the drive. Position feedback is provided by an analog resolver with a resolution of 8192 increments per revolution and an accuracy of ±10 angular minutes, so the controller can detect small angle changes while resisting electrical noise. The stator laminations are 205 mm long, balancing thermal dissipation with the limited space available in compact machines.

The magnetic circuit supports a rated shaft speed of 6000 rpm, while rotor lock testing shows a stall current of 1.2 A that produces 0.8 Nm of starting torque for overcoming static friction at zero speed. Total moving mass is only 1.48 kg, and the inertia of 0.15 × 10⁻⁴ kg·m² helps the axis respond quickly to changing velocity commands with minimal lag. A 9 mm diameter shaft projects 20 mm beyond the front bearing to accept collet couplings, and the resolver package remains fixed even under rapid reversals.