SIEMENS 1FK7042-5AF71-1SG0 AC Servo motor

Buy online your SIEMENS 1FK7042-5AF71-1SG0 AC Servo motor from UK e-store Cnc-shopping UK, specialist in CNC machine-tools spare parts.

The SIEMENS 1FK7042-5AF71-1SG0 is a permanent-magnet synchronous AC servo motor from the SIMOTICS S – 1FK7 Compact series, designed for precise axis positioning on CNC machine tools and industrial automation equipment. It is a practical replacement unit and industrial spare part for compatible SIEMENS installations.

This SIEMENS servo motor delivers a rated torque of 3.0 Nm, an output power of 0.82 kW, and a rated speed of 3,000 rpm. Its electrical specifications include 267 V, a rated current of 2.2 A, and a 100 K temperature rise rating. It features natural convection cooling, an integrated resolver p = 4 for position feedback, an IM B5 (IM V1, IM V3) mounting configuration, and power and signal connectors rotatable through 270°.

The 1FK7042-5AF71-1SG0 is suitable for feed axes on machining centers, CNC lathes, automated handling systems, and industrial equipment. It can be used with SINAMICS S120 drive systems or certain SIMODRIVE 611 installations, provided that the complete configuration, resolver feedback, and drive parameters are compatible.

Manufactured in Germany, this motor is a practical CNC replacement component and emergency spare for maintenance and retrofit applications. Before installation, it is essential to verify the complete reference, electrical specifications, connectors, and mechanical interfaces against the original motor.

Each unit supplied by Cnc-shopping can be inspected and tested on appropriate test benches to verify motor operation, resolver feedback signals, and smooth rotation. Products are packed in protective packaging suitable for industrial shipping and covered by a commercial warranty under our standard terms.

Cnc-shopping offers the SIEMENS 1FK7042-5AF71-1SG0 with fast worldwide shipping, subject to availability. We also assist with sourcing obsolete parts and may offer repair, standard exchange, or refurbished-unit solutions when available.

Frequently asked questions about 1FK7042-5AF71-1SG0:

Which drives are typically used with this motor?
The 1FK7 family is commonly paired with SINAMICS S120 and many legacy SIMODRIVE 611 systems. Confirm compatibility by matching the full order code with your drive data sheet and existing parameters.

Does this variant include a holding brake?
Brake configuration depends on the exact code. Provide the complete motor code and nameplate details and our team will confirm the presence and voltage of the brake.

What encoder type is fitted?
1FK7 motors are available with various incremental and absolute encoders. The encoder specification is encoded in the order code; we can verify the exact feedback type against your machine requirements.

Is it a drop-in replacement if my existing motor has the same code?
Yes. Matching the full SIEMENS code normally ensures the same mechanical interface, feedback configuration and electrical winding so field replacement is straightforward with drive parameters retained.

Can you support repair or exchange for this reference?
Yes. We can arrange repair service, offer a tested unit or a refurbished unit when available, and discuss exchange service to reduce machine downtime.