Product Description:

The SR-A0.0004.060-04.000 is a synchronous servo motor produced by Bosch Rexroth Indramat as part of the SR Synchronous Servo Motors series. Designed for compact automation modules, the motor couples directly to miniature gearheads or pulleys to deliver precisely commanded motion. Within a drive system, it converts electrical power into controlled shaft rotation, allowing controllers to synchronize tooling, carriers, or inspection devices with repeatable accuracy at high throughput rates. Its compact form also suits installations where available mounting space is limited.

A permanent-magnet rotor generates torque in proportion to phase current, with a torque constant of 0.62 Nm. During startup or stall, the winding draws a locked-rotor current of 0.65 A, and that current produces a locked-rotor torque of 0.4 Nm, values used when sizing couplings and mechanical stops. Once load inertia is overcome, the shaft reaches its rated speed of 6000 rpm, giving the axis a broad velocity range for indexing or scanning tasks. An integrated holding brake engages through a control feed of 24 V, so the brake can be wired directly to standard machine-level power buses. These electrical values indicate the current, holding, and speed range that the drive amplifier must support.

With the brake installed, the motor mass is 1.38 kg, permitting attachment to lightweight gantry plates without upsetting balance. The rotor inertia, measured with the resolver mounted, is only 0.09 × 10⁻⁴ kg·m², which helps the axis respond quickly during short positioning moves and rapid speed changes. Output power is transmitted through a precision-ground shaft sized at Ø9 × 20 mm, offering sufficient clamping length while keeping overhung load low. This layout supports compact motion platforms that need accurate movement without adding unnecessary mass at the axis.