Product Description:

The SE-LB3.033.060-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. It serves as a compact prime mover for industrial automation axes that rely on precise velocity and position control through feedback to a matching digital drive controller. By converting commanded current into proportional torque, the unit supports conveyor pick-and-place heads, indexing tables, and light machine-tool spindles that demand repeatable motion profiles. Its synchronous design supports stable closed-loop operation during repeated start-and-stop cycles.

Electrical performance centers on a rated operating speed of 6000 rpm. When the shaft is locked, the motor can resist load with a standstill torque of 3.8 Nm while drawing a standstill current of 7.7 A. The torque constant is 0.49 Nm/A, so each ampere delivered by the drive produces about half a newton-meter of torque. A short electrical time constant of 7.7 ms allows winding current to rise quickly, giving the servo fast transient response. Supporting figures include a tachogenerator back EMF of 1.8 V per 1000 rpm for speed feedback, a winding resistance of 2.4 Ω that contributes to copper losses, and a thermal time constant of 20 minutes for repetitive acceleration duty.

Mechanical integration is aided by a rotor inertia of 0.81 × 10⁻³ kg·m², allowing rapid acceleration without excessive drive demand. The housing mass is 8.5 kg, and a flange width of 116 ±0.6 mm matches standard mounting patterns. The shaft exits as a Ø19 × 40 mm shaft with an A6×6×32 feather key and an M6 center-bore thread for puller tools. Overall length is limited to 256 mm, which helps the motor fit tight enclosures and compact axis modules. A voltage constant of 60 V/1000 rpm matches common low-voltage inverters, while the sealed rotor helps support temperature stability during frequent starts and stops.