Product Description:

The SF-A5.0700.020-00.000 servo motor is manufactured by Bosch Rexroth Indramat as part of the SF Servo Motors series. Designed as a rotary drive element for CNC axes and handling modules, it converts electrical power from a controller into controlled motion with high position fidelity. By integrating a single-turn absolute encoder and thermal sensing, the unit provides closed-loop feedback that allows the automation system to maintain commanded positions even under variable mechanical loads.

The motor reaches a rated speed of 2000 rpm, so the drive can maintain constant velocity within its continuous operating band. At standstill, it delivers 70 Nm of torque while drawing 34.1 A, which shows its stall capability for holding or indexing duties. Its torque constant is 2.0 Nm/A, meaning every ampere supplied by the inverter produces two newton-meters of torque. A square four-bolt interface with a flange diameter of 190 mm permits direct installation on gearboxes or machine plates. Because the model is built without forced ventilation, heat dissipates through its aluminum housing, and the lack of an integrated brake simplifies the shaft train.

The overall mass is 50 kg, and the active length of 483 mm suits machinery layouts that limit motor depth. Feedback resolution of 8,000,000 inc/rev from the single-turn absolute STG encoder, paired with an angular accuracy of ±20 arcsec, supports precise interpolation for micro-positioning tasks. Two onboard NTC sensors report winding temperature to the drive, enabling derating or shutdown before thermal limits are exceeded. Dynamic response is influenced by a rotor inertia of 257 × 10^-4 kg·m², while the Ø32 × 58 mm keyed shaft transmits torque to belts, couplings, or gearboxes without additional adapters. Natural convection cooling removes heat without a blower.