Product Description:

The SF-A5.0460.030-14.050 is a servo motor manufactured by Bosch Rexroth Indramat within the SF Servo Motors series. It is intended for closed-loop drive axes in industrial automation where accurate velocity and torque control are required for positioning, indexing, or coordinated motion. The motor integrates an electromagnetic holding brake and a size 190 mounting flange, so it can be directly coupled to gearheads or mechanical transmissions in compact machine layouts.

The drive reaches a rated speed of 3000 rpm, enabling high-cycle operation without mechanical gear multiplication. A holding torque of 56 Nm keeps loads stationary whenever the controller disables drive current. The torque constant of 1.58 Nm/A indicates the proportional relationship between phase current and developed torque for current-loop tuning. During a stall test, the windings can draw a locked-rotor current of 29 A rms and produce a locked-rotor torque of 46 Nm. These values are used to size the drive amplifier and set overcurrent limits. Brake power is supplied by an external 24 VDC line that must deliver 1.33 A, and motor connections are routed through a 4 × 10 mm² power cable. The Ø32 × 58 mm shaft transmits output through a keyed interface.

An axial force of 380 N can be applied to the shaft without exceeding bearing limits, which supports belt tension or thrust screw loads. Including the brake, the assembly weighs 40.2 kg, which is an important consideration for gantry or arm payload calculations. The overall length is 428 mm, allowing clearance checks when the motor is installed inline with gear reducers. The housing withstands shocks up to 6 g, which helps protect internal laminations during transport and machine startup. A dedicated 2 × 1.5 mm² brake cable separates brake power from the phase conductors to minimize electromagnetic interference.