SF-A4.0125.030-04.000 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
Wake Industrial LLC is not an authorized distributor of this product.
MPN: 1070076438
The Bosch Rexroth Indramat SF-A4.0125.030-04.000 is a servo motor from the SF Servo Motors series with a flange size of 142 mm and a mass of 17.7 kg. It features a rated speed of 3000 min-1, locked-rotor torque of 14.5 Nm, and a single-turn STG encoder with 8 million increments per revolution. The motor's brake has a voltage of 24 VDC, a current of 0.7 A, and delivers 18 Nm of brake torque.
Internal Product Review
The SF-A4.0125.030-04.000 is a servo motor that stands out for precise motion feedback with a Single-turn STG encoder and 8 million incr./rev. resolution. Rated speed of 3000 min-1 and locked-rotor torque of 14.5 Nm support responsive performance in dynamic axis applications. A 24 VDC ±10% brake with 18 Nm brake torque is a strong finishing feature for controlled stopping and secure holding.
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Product Description:
The SF-A4.0125.030-04.000 servo motor is produced by Bosch Rexroth Indramat and belongs to the SF Servo Motors series. The unit is an electromechanical rotary actuator intended for positioning and velocity control tasks inside automated machinery such as packaging stations, gantry axes, and material-handling modules. It converts command currents from a matching drive into proportional shaft torque while providing feedback through an integrated encoder, thereby enabling closed-loop motion in industrial automation cells.
The motor mounts to the machine frame with a 142 mm flange size, and its cylindrical shaft measures Ø24 × 50 mm and is furnished with a feather key A8x7x40 for positive torque transfer. A total length of 324 mm and an inertia of 30 × 10⁻⁴ kg·m² give moderate acceleration capability for medium-mass loads. At the stator winding, the locked-rotor current reaches 10.6 A and produces a 14.5 Nm locked-rotor torque, while the 1.37 Nm/A torque constant indicates the torque produced per ampere. Under rated excitation, the rotor can attain a 3000 rpm rated speed, and position information is supplied by a single-turn STG encoder with 8 million increments per revolution. During normal service, the separate holding brake uses a 0.7 A brake current, helping prevent unintended shaft movement when the drive is disabled.
The electromechanical brake operates at 24 VDC ±10% and generates 18 Nm of holding torque to secure the axis during downtime. With a total mass of 17.7 kg, the motor adds a predictable load to the drive chain while remaining suitable for vertical or gantry installation. The keyed shaft mates directly with gearboxes or belt pulleys, allowing slip-free torque transfer. Encoder feedback works with the drive to stop the shaft at precise positions and reduce settling time during step-and-repeat sequences.
