Siemens 1FK7042-5AF71-1AA5 — The Siemens 1FK7042-5AF71-1AA5 is a compact synchronous servo motor from the 1FK7 series, designed for precision applications

Part number	1FK7042-5AF71-1AA5
Brand	Siemens
Category	Servo Motor
Description	The Siemens 1FK7042-5AF71-1AA5 is a compact synchronous servo motor from the 1FK7 series, designed for precision applications
Manufacturer	Siemens
Product Line	1FK7
Part Number	1FK7042-5AF71-1AA5
UPC	662643005899
Weight	10.00 lbs (4.54 kg)
Product Name	Synchronous Servo Motor
Build	Compact
Rated Torque	3 Nm
K-Factor	100K
Rated Speed	3000 rpm
Power Output	0.82 kW (1.1 HP)
Cooling	Naturally Cooled
Shaft End	IM B5
Connector Plug Maximum Rotation	270°
Encoder Type	Incremental
Encoder Resolution	2048 pulses per revolution (ppr)
Shaft Key	Yes
Tolerance Class	N
Holding Brake	No

The Siemens 1FK7042-5AF71-1AA5 is a compact synchronous servo motor from the 1FK7 series, designed for precision applications. It provides an output of 0.82 kW (1.1 HP) and delivers a rated torque of 3 Nm at a speed of 3000 rpm, suitable for various motion control tasks.

Also written as

662643005899

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.