Product Description:

The SE-LB3.055.060-10.000 is a synchronous servo motor built by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. Within an automated line, it delivers closed-loop rotary motion that allows a drive controller to regulate position or speed accurately. Its compact, frameless permanent-magnet design is suitable for packaging heads, pick-and-place axes, and other high-cycle stations with limited installation space.

An electrical time constant of 10.2 ms indicates how quickly the armature current reaches 63% of its final value after a voltage step, which influences control-loop bandwidth. The rotor can maintain a nominal shaft speed of 6000 rpm, supporting fast traverse or spindle service when paired with a matching gearbox or direct-drive assembly. During acceleration bursts, the power stage can supply up to 76 A, while continuous operation requires a lower current. At standstill, the magnetic circuit produces a holding torque of 6.5 Nm. A phase inductance of 11 mH limits the rate of current change, smoothing current ripple and reducing stress on power semiconductors.

The combined steel rotor and tacho generator have a reflected inertia of 1.21 × 10⁻³ kg·m², balancing quick speed changes with mechanical stability for moderate loads. The motor weighs 10.6 kg, allowing it to be mounted on aluminum frames without excessive reinforcement. Each ampere supplied at standstill contributes approximately 0.52 Nm/A of torque, a coefficient that assists with calculating the required current limits. Back electromotive force rises at a rate of 61 V/1000 rpm, which helps with selecting the DC-bus voltage and regeneration hardware. The thermal time constant is 28 minutes, while the mechanical time constant is 4.1 ms. The phase resistance is 1.03 Ω. The shaft measures 19 mm in diameter and 40 mm in length, providing the physical output interface for coupling the motor to the driven assembly.