Product Description:

The SF-B4.0230.060-14.030 is a servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. Designed for high-speed positioning in industrial automation, the unit supplies rotational motion to ball screws, belt drives, and indexing tables controlled by digital drives. It integrates a single-turn absolute encoder for position feedback and a spring-applied holding brake that secures the shaft when power is removed, helping the axis remain secure during stops and service intervals in packaging, assembly, and material-handling applications.

Dynamic output is characterized by a rated speed of 6000 rpm, enabling rapid cycle times without overspeeding the rotor and bearing system. The electromagnetic design delivers a torque constant of 0.88 Nm/A, so the drive controller can predict torque from phase current with linear accuracy. During startup, the motor can generate 22 Nm of locked-rotor torque while drawing 25 Arms of current; these values support current-loop settings and fuse selection. For load holding during standby, the integrated brake supplies 18 Nm of torque and is released by a 24 VDC coil. A continuous excitation current of 0.7 A keeps the brake disengaged, preventing drag on the shaft during motion.

Rotor inertia is 54 × 10⁻⁴ kg·m², and the brake adds 3.1 × 10⁻⁴ kg·m², which supports fast acceleration without excessive gain in the drive. The single-turn encoder resolves position to 8 million increments per revolution with an accuracy of ±20 arc-seconds, giving tight feedback for sub-arc-minute positioning. The motor has an IP67 protection rating for the 142 mm flange housing and the Ø24 × 50 mm shaft, which helps block dust and temporary immersion. The bearing system is rated for 20,000 hrs of operation when the motor is loaded within its stated limits and the brake receives the specified 24 V supply.