Product Description:

The SF-A3.0042.030-10.000 is a servo motor manufactured by Bosch Rexroth Indramat for the SF Servo Motors series. In an automation cell, it provides direct, feedback-controlled rotary motion so that a drive controller can position loads with consistent velocity profiles. The unit uses flange mounting style IM B5 and a smooth shaft, which lets it connect to gearboxes, timing belts, or direct-drive tooling without extra mechanical adapters. This layout suits compact machine axes where accurate rotary control and straightforward mounting are both required during repetitive daily production cycles.

The motor reaches a rated speed of 3000 rpm when the drive supplies current in line with its torque constant of 1.6 Nm/A. During a stall condition, it can resist load with 3.7 Nm of locked-rotor torque while drawing 2.3 A. Acceleration behavior is influenced by a rotor inertia of 7 × 10⁻⁴ kg·m², which helps the axis respond quickly to changing speed commands. The shaft measures 19 mm in diameter and 40 mm in length, and its smooth geometry supports keyless couplings. Overall housing length is 223 mm when no holding brake is installed, helping the motor fit into compact machine sections or articulated assemblies.

The stator housing carries a protection rating of IP67 except at the output flange, which helps keep dust and coolant away from the motor body while still allowing heat to pass through the mounting face. A circular flange diameter of 116 mm aligns with standard machine plates, and the assembled motor weighs 7.0 kg without a brake. Position feedback is supplied by a single-turn STG encoder that delivers 8 million incr./rev. with a precision of ±20 angular seconds, supporting accurate closed-loop positioning. Absolute position data is available after power-up, which can reduce the need for a separate homing cycle before motion begins.