Product Description:

The SE-B4.090.030-04.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat as part of the SE Synchronous Servo Motors series. It serves as the rotary actuator on precision axes in automated equipment such as pick-and-place stations and handling modules. The motor converts commanded current from a drive controller into regulated mechanical power for repeatable position and speed control during normal machine operation. Its operating profile suits applications that start and stop frequently while still requiring stable motion between indexing positions.

The motor’s rated operating point is a nominal speed of 3000 rpm, enabling fast cycle times without overspeeding common 1:1 belt drives. At standstill it can apply 9.0 Nm of static torque, which helps hold clamped loads until motion is requested. A torque constant of 0.87 Nm/A links drive current to developed torque, while a winding resistance of 1.92 ohms helps limit copper losses. The motor uses a 142 mm flange size on a 142 ±0.7 mm square mounting face, and the Ø130 j6 pilot supports accurate centering on mating machine plates. This mounting arrangement provides a rigid interface for direct installation on machine frames or IEC-compliant gearheads. A Ø24 k5 shaft is provided for keyed couplings, and the overall length of 299 mm suits installations with limited depth.

The rotor-stator assembly has a mass of 15 kg, which adds thermal mass and helps damp vibration during rapid axis movement. During short duty bursts, the motor can reach a maximum torque of 17.3 Nm. The winding inductance is 16.1 mH, and the integrated spring-applied brake provides 18 Nm of holding torque when 24 VDC ±10% is removed. This brake arrangement supports axes that must remain in position when supply power is lost. The brake releases at 1.0 A coil current and adds only 0.90 × 10⁻³ kg·m² of inertia. A 50 ±0.5 mm shaft extension leaves room for coupler hubs while keeping overhung load low.