Product Description:

The SF-A3.0093.030-14.030 is a brushless servo motor produced by Bosch Rexroth Indramat within the SF Servo Motors series. The unit converts electrical power into controlled mechanical rotation for positioning, indexing, and process drives in industrial automation lines. Its integrated holding brake and high-resolution feedback allow the connected drive controller to maintain accurate shaft position during power cycling or emergency stops. The motor is intended for axes that require repeatable motion and secure holding at standstill.

In the mechanical domain, the motor uses a holding brake that can resist up to 10.0 Nm of static load. The brake has a moment of inertia of 1.06 × 10⁻⁴ kg·m² and a mass of 0.6 kg, while the brake coil is energized from a 24 V DC source and draws 0.66 A during engagement. Overall motor inertia, including the multiturn encoder, is 16 × 10⁻⁴ kg·m², giving a balance between rapid acceleration and stable stop behavior. A square 116 mm mounting flange simplifies alignment to gearboxes or machine frames, while the Ø19 × 40 mm shaft delivers rated torque through a keyed interface. Physical dimensions reach 326 mm in length, and the complete assembly weighs 11.6 kg, allowing installation in medium-power axes without excessive frame loading.

The optical encoder provides a resolution of 8 million increments per revolution, supporting fine velocity loops at the drive. During startup, the stator can accept a locked-rotor current of 6.0 A and produce a stall torque of 8.1 Nm to overcome static friction. Under continuous conditions, the shaft can sustain 3000 rpm, and each ampere of phase current contributes approximately 1.35 Nm/A of torque for drive matching. The brake rated current remains isolated from the phase conductors, preserving servo bandwidth when the brake is released. This motor is suitable for indexing tables, packaging rollers, and light transfer gantries.