SR-A1.0012.060-04.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SR-A1.0012.060-04.000 is part of the SR Synchronous Servo Motors series. This servo motor has a rated speed of 6000 min^-1 and features a holding torque of 2.0 Nm. It weighs 2.11 kg and uses a resolver feedback type, with a motor length of 220 mm and flange width of 70 mm.
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Product Description:
The Bosch Rexroth Indramat SR-A1.0012.060-04.000 belongs to the SR Synchronous Servo Motors series and is intended for precision rotary positioning in automated machinery. It transforms regulated drive current into accurately controlled shaft motion so actuators, indexing tables, or small spindles can follow programmed speed and position profiles within CNC, packaging, or assembly equipment. By combining permanent-magnet excitation with resolver feedback, the motor supplies repeatable torque and velocity while occupying a compact footprint suitable for tight mechanical envelopes. This arrangement supports responsive motion control where stable speed regulation and accurate positioning are required during repeated operating cycles.
The motor reaches a rated speed of 6000 rpm, supporting high-cycle processes that demand fast rotation. Torque production scales linearly with a constant of 0.64 Nm/A, giving a consistent relationship between commanded current and mechanical output. Installation is simplified by a square flange that measures 70 mm across, allowing direct attachment to gearheads or mounting plates in IEC Size 70 layouts. A spring-applied brake supplies a static holding torque of 2.0 Nm to keep vertical or loaded axes stationary when power is removed. Despite these features, the unit’s mass remains only 2.11 kg, which helps keep moving assemblies light and supports quick acceleration and deceleration in compact motion systems. The small housing also fits equipment where available mounting space is limited.
The brake coil operates from a control supply of 24 VDC and draws just 0.4 A, so the auxiliary supply requirement remains low. If the rotor is blocked during start-up, the stator windings can momentarily accept a locked-rotor current of 1.9 A, allowing short-term torque buildup until motion resumes or protection responds. Dynamic response is helped by a combined rotor and resolver inertia of 0.63 × 10⁻⁴ kg·m², which allows quick direction changes with reduced lag at the load. This low inertia is useful in applications that require frequent starts, stops, and reversals over short move distances.
