SE-LB3.033.030-14.100 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-LB3.033.030-14.100 is part of the SE Synchronous Servo Motors series and has a nominal speed of 3000 rpm. It features a holding torque of 8.0 Nm and a peak current of 24 A. The servo motor offers a torque constant of 1.02 Nm per amp and a winding resistance of 7.9 Ohms.
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Product Description:
The SE-LB3.033.030-14.100 is a synchronous servo motor manufactured by Bosch Rexroth Indramat as part of the SE Synchronous Servo Motors series. It is intended for closed-loop industrial automation axes where accurate torque and speed regulation are required for positioning, feed, or handling tasks. By converting drive current into controlled rotary motion, the motor couples directly to gearboxes or loads and supports feedback-based motion profiles used in CNC machines, pick-and-place systems, and conveyor modules. In servo applications, it is used where the control system must correct speed and position errors quickly during repeated machine cycles.
The electrical response of the motor is characterized by a 7.6 ms electrical time constant, which shows how quickly the armature current reaches its commanded value during transients. Under continuous operation, the shaft runs at a 3000 rpm nominal speed. Short bursts draw up to a 24 A peak current, allowing rapid acceleration before thermal limits intervene, and the motor has a 1.02 Nm/A torque constant. The winding resistance is 7.9 Ω, while the inductance is 60 mH. Additional values include a 4.0 A standstill current, a 5.8 ms mechanical time constant, and a combined inertia of 0.81 × 10⁻³ kg·m². These electrical values shape how the drive delivers torque during fast command changes, and the listed inertia affects how readily the motor can accelerate a connected load.
Static load support reaches 8.0 Nm of holding torque, while short-term overload capability reaches 9.1 Nm maximum torque. From zero to rated speed, the rotor accelerates in a 32 ms ramp-up time, and the voltage constant is 112 V/1000 rpm. During power-off events, a fail-safe brake engages and operates from a regulated 24 ±10% V supply, while the actuator coil draws 0.8 A to clamp the shaft. Static torque at zero speed is 4.2 Nm, which supports controlled holding behavior before the motor begins rotating. The brake circuit is separate from the motor windings, allowing the shaft to remain secured when the servo is disabled.
