Product Description:

The SF-A5.0700.020-10.030 belongs to the SF Servo Motors series from Bosch Rexroth Indramat. It is a brushless synchronous servo unit intended to supply closed-loop torque and speed regulation on automated axes such as gantry drives, tool spindles, and transfer stations. Within a drive chain, the motor converts the electrical output of an inverter into mechanical rotation while its built-in single-turn position transducer feeds absolute rotor angle back to the controller. This combination allows the drive system to maintain command accuracy even during fast directional changes demanded by modern production equipment.

Mechanically, the shaft can accept an axial load up to 380 N, so ball-screw or rack assemblies may be pre-loaded without exceeding the bearing limits. Under normal operation the rotor reaches a rated speed of 2000 min⁻¹, and when stalled it can deliver a locked-rotor torque of 69 Nm while drawing a locked-rotor current of 34 A. The electromagnetic design yields a torque constant of 2.0 Nm/A, which helps the controller calculate current references during servo tuning. Power is supplied over a 4-conductor, 10 mm² cable, and mechanical coupling options include a center hole threaded to DIN 332-DS M12, a 32 k5 shaft journal, and a 58 mm shaft extension. These layouts simplify integration into gearboxes and couplings.

For inertia matching the rotor presents 257 × 10⁻⁴ kg·m², a value that balances acceleration capability with vibration damping on medium-mass loads. The single-turn encoder resolves 8 million increments per revolution and maintains ±20 angular-second accuracy, giving high fidelity feedback at the drive. Overall motor mass is 50 kg, and the housing length without a brake measures 483 mm, allowing installation in cabinets where depth is restricted. A flange with a diameter of Ø180 j6 provides the reference surface for locating the motor on machinery faces, while the STG encoder format simplifies wiring by carrying position and status data on one connector.