Product Description:

The SF-A5.0460.020-14.000 is a servo motor manufactured by Bosch Rexroth Indramat within the SF Servo Motors series. Designed for closed-loop motion axes, the motor converts electrical drive signals into controlled mechanical rotation for positioning tables, packaging lines, and transfer modules in industrial automation. Position information is returned by a single-turn absolute encoder with ±20 angular-second accuracy, allowing the controller to close velocity and position loops accurately. This feedback helps the drive maintain repeatable motion during indexing, speed changes, and stop positions.

At a rated speed of 2000 rpm, the rotor delivers continuous motion suited to medium-speed production machinery. The motor has a torque constant of 2.2 Nm/A, so each ampere of phase current produces 2.2 newton-meters. A flange diameter of 190 mm aligns the housing with standard DIN mounting interfaces, while a shaft measuring 32 mm in diameter and 58 mm in length accepts couplings directly. During startup, the drive can apply a locked-rotor torque of 46 Nm and will draw a locked-rotor current of 21 A. This operating point suits machinery that needs steady servo performance without moving into very high-speed duty.

For holding duties when power is removed, the integrated brake supplies 56 Nm of static torque. The brake uses a 1.33 A coil at 24 VDC ±10% and adds 3.8 kg of mass plus 30 × 10⁻⁴ kg·m² of inertia to the rotor assembly. The encoder’s high feedback density of 8 million increments per revolution supports fine positioning without external resolvers. The motor has IP67 protection except at the output side, so the stator body resists dust ingress and temporary water immersion, whereas the shaft end remains open for mechanical connection. The brake is useful on axes where the load must remain stationary after power is removed.