Product Description:

The SF-A5.0250.030-10.000 is a brushless servo motor produced by Bosch Rexroth Indramat for the SF Servo Motors series. It is supplied as a compact drive element that delivers closed-loop torque for automated machine axes, conveyors, and tooling spindles in industrial manufacturing cells. By integrating an absolute encoder and a sealed housing, the motor supports precise feedback and reliable motion in harsh operating areas. This arrangement also allows accurate shaft positioning and stable speed control in systems that require repeatable movement.

The motor reaches a rated speed of 3000 rpm under nominal voltage. Its electromagnetic design gives it a torque constant of 1.44 Nm/A, so current demand remains predictable during load changes. Total rotational inertia, including the encoder, is 83 × 10⁻⁴ kg·m², which affects acceleration response and servo loop behavior. During startup, the drive can withstand a locked-rotor current of 16 Arms and produce a locked-rotor torque of 23 Nm for stall conditions. The mechanical package weighs 24 kg, uses a smooth 32 mm diameter shaft that extends 58 mm from the face, and seats on a 180 mm pilot diameter. At 300 mm overall length, these dimensions allow direct coupling to gearboxes or belt pulleys without intermediate adapters.

Electrical integration is through a DC bus rated at 670 V, enabling operation on high-power Indramat drive modules. Position data comes from a single-turn absolute STG encoder that provides 8 million incr./rev. of resolution and maintains an accuracy window of ±20 arcsec. These values support precise contouring and indexing tasks where small position errors must be controlled closely. The enclosure carries a designation of IP67 except at the output side, giving full dust protection and tolerance to temporary immersion. This sealing helps the motor operate in areas where coolant spray or airborne particles are present while still allowing proper shaft alignment.