Product Description:

The SE-KB4.065.030-10.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and belongs to the SE Synchronous Servo Motors series. The unit is intended for industrial automation tasks that require accurate velocity and position control, such as material handling gantries, pick-and-place heads, and packaging stations. By combining permanent-magnet excitation with encoder feedback, it generates controlled torque over a wide speed band while remaining compact enough for direct integration inside machine frames.

Its static torque is 7.6 Nm, enabling the shaft to resist load when stopped. Under rated conditions, the rotor can reach 3000 rpm, a speed that matches common drive frequencies while keeping magnetic losses low. The motor draws 7.5 A at standstill, which helps the controller size its continuous current channel. Each ampere contributes roughly 1.01 Nm/A of electromagnetic torque, which supports current-loop tuning. The generated back EMF rises at 114 V/1000 rpm, so drives must provide sufficient DC-bus margin at high speed. Coil dynamics are influenced by an inductance of 30 mH, allowing smooth current transitions without excessive ripple. The winding resistance is 3.39 Ω, the flange diameter is 185 mm, and the Ø19 × 28 mm shaft is delivered without a keyway, supporting clamp couplings for a backlash-free connection.

During acceleration, the motor can deliver up to 18.8 Nm for short intervals, provided the inverter supplies the permissible peak current of 45 A at 20 °C. This overload margin is moderated by the rotor inertia of 1.71 × 10⁻³ kg·m², giving a balance between quick response and mechanical stability. With an overall length of 236 mm and a mass of 11 kg, the housing imposes a modest load on moving axes, while the square flange simplifies rigid mounting. The absence of a keyway reduces stress concentrations on the shaft and favors repeatable coupling alignment.