SE-B4.170.030-04.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B4.170.030-04.000 is part of the SE Synchronous Servo Motors series and features a nominal speed of 3000 rpm with a static torque of 17 Nm. It has a flange size of 142 mm, a shaft size of 24 by 50 mm with a keyway and feather key design, and a housing protection rating of IP67. The holding brake torque is 18 Nm and the brake operates at a nominal current of 1.0 A with a supply voltage of 24 V.
Internal Product Review
The SE-B4.170.030-04.000 is a well-engineered synchronous servo motor with IP67 housing protection and a 3000 rpm nominal speed. A 17 Nm static torque rating and 18 Nm holding brake torque make this unit a strong choice for precise motion applications.
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Product Description:
The SE-B4.170.030-04.000 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. The unit converts electrical energy into controlled rotary motion for positioning axes and feed drives in automated machinery. Its design integrates a permanent-magnet rotor, resolver feedback, and an electromechanical holding brake to maintain shaft position when power is removed, making it suitable for packaging lines, gantry systems, and general-purpose CNC equipment. This arrangement supports accurate starts, stops, and holding behavior on axes that must remain stable during dwell periods and repeated indexing moves.
The housing meets the IP67 protection category, which allows installation where washdown or airborne coolant is present. During operation, the motor can reach a shaft velocity of 3000 rpm, a rating that matches common drive controllers in the 400 V class. To keep vertical loads secure at standstill, the brake delivers a holding torque of 18 Nm. Mounting follows the IEC square flange dimension of 142 mm, so the frame bolts directly to gearboxes or machine plates without adapters. The brake coil is energized from a control supply of 24 ±10% V and draws a nominal excitation current of 1.0 A, which limits heat rise inside the terminal box and supports stable brake release during normal operation.
The remaining mechanical constants describe the dynamic response of the rotor-brake assembly. Continuous torque development starts at the static rating of 17 Nm, while acceleration is influenced by the combined inertia of 0.90 × 10⁻³ kg·m². These values help the drive respond predictably during acceleration, deceleration, and direction changes. Signal quality is supported by a tachogenerator back-EMF of 2.7 V per 1000 rpm, and DC-bus voltage ripple is limited to ≤1.5%. Power transfer to the load is handled by a Ø24 × 50 mm keyed shaft that includes a keyway and feather key for positive torque transmission without slip.
