Siemens 1FT6044-1AF71-4EH1 — Permanent Magnet Synchronous Servo Motor

Part number	1FT6044-1AF71-4EH1
Brand	Siemens
Category	Servo Motor
Description	Permanent Magnet Synchronous Servo Motor
Manufacturer	Siemens
Product Type	Permanent magnet synchronous servo motor
Product Line	1FT6
Part Number	1FT6044-1AF71-4EH1
UPC	662643010060
Weight	4.38 lbs (1.98 kg)
Rated Continuous Torque	4.3 Nm (nominal), 5.0 Nm (peak)
Maximum Speed	3000 revolutions per minute (rpm)
Power Output	1.88 horsepower (1.4 kW)
Rated Current	2.9 A (at nominal torque)
Cooling Method	Natural convection cooling (no external fan)
Enclosure Protection	IP65-rated dust/water resistance
Mechanical Mounting	Supports IM B5, IM V1, and IM V3 configurations
Position Feedback System	Absolute encoder with EnDat 2.2 interface (2048 pulses per revolution)
Shaft Dimensions	19 mm diameter × 48 mm length
Bearing Type	Preloaded roller bearings for axial/radial loads
Thermal Insulation Class	Class F (155°C maximum winding temperature)
Frame Size	96 mm flange width
Ambient Temperature Limit	Operates up to 40°C (104°F)

The 1FT6044-1AF71-4EH1 by Siemens is a synchronous servo motor featuring a permanent magnet design. It achieves a nominal continuous torque of 4.3 Nm and can deliver a peak torque of 5.0 Nm, all while operating at speeds up to 3000 revolutions per minute (rpm).

Also written as

662643010060

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.