What this code points to
The 1FK7040-5AK71-1TB0 is a 1FK7 compact synchronous servo motor from Siemens, the brushless servomotor line used on SIMOTION and SINAMICS drive packages where a short, low-inertia axis is needed. On the panel or machine builder's side it slots into the standard Siemens servo cable and encoder ecosystem — the electrical fit is governed by the family, not this single dash code, so any cross-reference has to respect the resolver/encoder option and brake choice baked into the suffix.
Where this motor sits in the lineup
1FK7 is the compact, high-dynamic family inside Siemens' synchronous servomotor range, and 1FK7040 specifically is the 63 mm shaft-height frame — sized for smaller axes (feed rollers, indexing tables, packaging heads, small-format converting) where 1FK7060 and 1FK7080 frames would over-spec the mounting.