SF-A3.0068.030-00.018

The SF-A3.0068.030-00.018 servo motor is manufactured by Bosch Rexroth Indramat as part of the SF Servo Motors series. This permanent-excited synchronous device supplies precise rotary motion for indexing tables, pick-and-place heads, and general automation axes. Designed for operation on high-voltage link supplies, it attaches directly to compatible drive modules and fits into sealed machine zones thanks to its aluminum enclosure.

At the nominal shaft speed of 3000 rpm, the motor can hold a continuous standstill torque of 6.8 Nm while drawing only 4.5 A of standstill current. These output figures stem from its electromagnetic design, where each ampere contributes roughly 1.36 Nm/A according to the torque constant. With a rotor inertia of 11.3 x10^-4 kg·m², acceleration times remain low, allowing tight following of command changes without introducing excessive load on the connected gearbox or coupling. Together, these parameters define the dynamic envelope available to machine builders when sizing axes that must start, stop, and reverse in rapid succession.

The housing meets the IP67 protection class, so dust ingress and short-term water immersion will not affect internal windings or the pair of 2x NTC temperature sensors that track thermal rise. Cooling is handled entirely by Natural Convection, eliminating fans and keeping maintenance requirements minimal. The stator is energized from a DC link of 670 V, which aligns with the voltage levels used in multi-axis drive cabinets. Installation is simplified through the flange-mounted IM B5 interface, enabling direct coupling to gearheads or mechanical frames without additional brackets. These construction details complement the performance data above by ensuring environmental sealing, straightforward mounting, and stable thermal behavior during continuous duty.