SE-C4.170.030-00.101 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-C4.170.030-00.101 is a synchronous servo motor in the SE Synchronous Servo Motors series. It has a static torque of 17 Nm, nominal speed of 3000 rpm, and a mass of 19 kilograms without a brake. The flange size is 142 mm and the shaft size measures 24 by 50 mm.
Internal Product Review
The SE-C4.170.030-00.101 is a Bosch Rexroth Indramat synchronous servo motor that delivers 17 Nm static torque at a 3000 rpm nominal speed. An oil-tight driving-end housing and 43.0 Nm maximum torque with Sm 25/50 give the unit strong appeal for demanding motion applications. The 0.91 Nm/A torque constant further highlights the motor’s capability for precise high-response axis control.
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Product Description:
The SE-C4.170.030-00.101 is a synchronous servo motor manufactured by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. Designed for closed-loop industrial automation, the unit converts commanded three-phase current into precise shaft rotation for positioning axes, controlling spindles, and coordinating motion in assembly lines. Its brushless construction operates with Rexroth drives and feedback electronics to maintain regulated speed and torque while minimizing maintenance in continuous production environments.
Its nominal operating speed is 3000 rpm, making it suitable for machinery that must maintain a constant velocity under varying loads. When the rotor is locked and the motor is energized, it supplies 17 Nm of static torque. The torque constant of 0.91 Nm/A links drive current directly to mechanical output, simplifying current-loop tuning. The generated back EMF is 104 V/1000 rpm, a value used to size the DC bus and evaluate regenerative energy. The stator inductance is 9.3 mH, which moderates current rise and helps limit switching losses, while the winding resistance of 0.68 ohms affects copper dissipation. A standstill current of 19 A produces the rated static torque without thermal overload. The tachogenerator delivers 2.7 V per 1000 rpm for velocity feedback.
During rapid motion profiles, the motor can accept a peak current of 111 A and develop up to 43.0 Nm of torque when paired with an SM 25/50 drive. The rotor inertia is 4.08 × 10⁻³ kg·m², balancing responsive acceleration with stable load control. The housing has a mass of 19.0 kg, providing thermal capacity and structural stiffness. An oil-tight drive-end housing seals the bearing chamber against lubricant leakage and external contamination. The 142 mm flange aligns the motor frame with compatible gearboxes, while the 24 × 50 mm shaft transmits torque through keyed couplings. The motor has an overall length of 315 mm without a brake, allowing installation in compact machine cells where axial space is limited.
