Product Description:

The SF-A5.0460.020-00.000 is a brushless servo motor produced by Bosch Rexroth Indramat for the SF Servo Motors series. This rotary unit supplies closed-loop motion in automated machinery, delivering commanded position and velocity to linear stages, indexing tables, and packaging axes. In manufacturing cells, the motor acts as an electromechanical actuator, converting drive current into controlled torque for precise equipment movements.

With a flange diameter of 190 mm, the motor mounts to gearboxes or machine frames using the IM B5 interface, keeping the stator centered and rigid. Its shaft can reach a rated speed of 2000 rpm, a limit chosen to align rotor balance, bearing life, and drive frequency. A torque constant of 2.2 Nm/A links phase current to torque output, allowing the controller to predict load behavior through simple current regulation. During startup or jam conditions, it can withstand a locked-rotor torque of 46 Nm without mechanical damage. The housing carries an enclosure rating of IP67 when no output flange is fitted, so dust ingress and temporary water immersion will not interfere with the single-turn absolute STG encoder, the 2 × NTC temperature sensors, or internal windings.

A locked-rotor current of 21 A is required to generate the specified stall torque while the drive maintains thermal limits. The motor weighs 35 kg without an integral brake, and its rotor inertia of 166 ×10⁻⁴ kg·m² moderates speed changes, reducing overshoot in point-to-point moves. The ground steel shaft measures Ø32 × 58 mm, supplying enough shear strength for pulley or coupling loads, and the total body length is 383 mm when no brake module is installed. This layout also leaves room for standard couplings and support components at the machine interface.