SE-B4.170.050-10.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B4.170.050-10.000 is a synchronous servo motor from the SE Synchronous Servo Motors series with a flange size of 142 mm and a mass of 19 kg. It delivers a nominal speed of 5000 rpm and a maximum torque of 37.5 Nm, featuring a peak current of 145 A. The moment of inertia is 4.08 x 10^-3 kgm², and the shaft is sized at 24 x 50 mm with no keyway.
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Product Description:
The SE-B4.170.050-10.000 is a synchronous servo motor from Bosch Rexroth Indramat's SE Synchronous Servo Motors series. It is built for closed-loop industrial automation where precise velocity and torque regulation are required on packaging machines, gantries, and similar equipment. A permanent-magnet rotor works with digital drive control to convert commanded current into repeatable mechanical motion across a wide speed range. This arrangement supports accurate axis response when load conditions change during normal machine operation.
The motor mounts to machinery with a 142 mm square flange and couples to the load through a 24 mm × 50 mm shaft that is supplied without a keyway, allowing custom hub designs. At its rated operating point, it reaches 5000 rpm, and the electromagnetic design permits a peak torque of 37.5 Nm. Rotor inertia is 4.08 × 10-3 kg·m², which balances acceleration response and load stability, and the winding can accept up to 145 A of peak current during short transients. The motor also has a torque constant of 0.58 Nm/A and a back EMF constant of 67 V per 1000 rpm. Stator inductance is 4.5 mH, and resistance is 0.37 Ω, which affect current ripple and thermal dissipation. The square flange and plain shaft layout also fit applications that use clamp-style couplings instead of keyed hubs.
Total mass is 19.0 kg, and the housing length does not exceed 315 mm, allowing installation in compact multi-axis frames. During static positioning, the windings draw 24 A and generate a holding torque of 14 Nm without an additional mechanical brake. These values help estimate continuous power loss and cabinet cooling requirements during stationary operation. The absence of a shaft keyway reduces stress concentrations during reversing torque cycles. The shaft diameter also matches standard zero-backlash couplings used on many servo axes.
