Product Description:

The SF-B5.0250.030-14.011 belongs to the SF Servo Motors series produced by Bosch Rexroth Indramat. It is a permanent-magnet synchronous servo motor intended for closed-loop positioning and velocity control in automated machinery such as pick-and-place axes, rotary tables, and packaging stations. By converting precisely regulated stator currents into mechanical motion, the unit supplies repeatable torque and speed for demanding industrial automation tasks.

The motor reaches a rated speed of 3000 rpm under nominal load. Its torque constant of 1.44 Nm/A links drive current to generated torque, so commanded current can be translated into predictable output torque by the matching drive. Dynamic response is influenced by a rotor inertia of 83 × 10⁻⁴ kg·m², which helps balance quick acceleration with stable running. A holding torque of 56 Nm lets the shaft remain in position when energized but stationary, and the brake releases at 24 VDC. The holding brake draws 1.33 A, adds 30 × 10⁻⁴ kg·m² of inertia, and has 5% torque ripple during engagement. Start-up transients are characterized by a locked-rotor current of 16 A and a locked-rotor torque of 23 Nm, which are useful when matching the motor to an inverter and setting acceleration limits.

The motor has an IP67 rating, which permits installation in areas exposed to dust and temporary immersion, and the flange follows the IM B5 mounting pattern for rigid coupling to gearboxes or machine frames. High-resolution feedback is provided by an encoder with 8 million increments per revolution, enabling fine positional interpolation and stable closed-loop control at low and high speeds. Power is supplied from a DC bus up to 670 V, allowing the servo to pair with high-voltage inverters used in compact control cabinets. The mechanical interface uses a 32 mm diameter shaft that projects 58 mm beyond the mounting face, giving sufficient engagement length for keyed hubs or shrink-fit couplings and supporting secure torque transfer.