SIEMENS 1FT5072-1AF71-1EB0 Servomotor Tacho Brake shaft with Key Way

Buy online your SIEMENS 1FT5072-1AF71-1EB0 Servomotor Tacho Brake shaft with Key Way reference 1FT5072-1AF71-1EB0 from our e-store Cnc-shopping, specialist in CNC machine-tools spare parts.

This SIEMENS 1FT5 series servo motor is a permanent-magnet unit built for CNC axis duty, fitted with an integrated tacho generator and a holding brake. Used as a replacement motor in legacy motion systems, it drives feed axes on milling machines, lathes and grinders where analog speed feedback is required. The keyed shaft supports secure coupling to ballscrews and gearboxes, making it a solid CNC replacement component for maintenance teams and retrofit projects.

The motor delivers stable torque across the speed range while the tacho feedback provides the drive with precise speed information, a common requirement on older CNC installations. The integrated brake secures the axis at standstill, typically on vertical or inclined axes where load holding is needed during power-off or servo disable. This configuration is frequently found on machines originally commissioned with SIEMENS 1FT5 motors.

In the CNC drive chain, this unit pairs with SIEMENS servo amplifiers that accept tacho input, allowing closed-loop control without converting the machine to a different feedback technology. The shaft with keyway simplifies field replacement since most legacy couplings are keyed. Technicians usually select this exact reference as a drop-in replacement unit for motors carrying the same nameplate code, keeping mechanical interfaces and cabling unchanged.

When planning a swap, match the complete code 1FT5072-1AF71-1EB0 on the failed motor to preserve flange size, rotor inertia, connector orientation and brake characteristics. This reference is commonly sourced as a spare part for axis drives on metal-cutting equipment, woodworking machinery and general automation lines where a reliable, serviceable SIEMENS servo is preferred over platform changes.

Reference: 1FT5072-1AF71-1EB0

Manufacturer: SIEMENS

Product type: SIEMENS Servo motor 1FT5

Main function: AC servo for CNC axis motion with analog tacho speed feedback and integrated holding brake

Applications: Feed axes on milling, turning and grinding machines, vertical Z axes requiring load holding, retrofit of legacy SIEMENS motion systems

Key technical data: 1FT5072 frame permanent-magnet servo, integrated tacho generator for speed feedback, built-in holding brake, cylindrical shaft with keyway for secure coupling, German-built construction, intended as a like-for-like replacement unit in systems originally equipped with this code.

On the production floor this model is selected to restore motion on aging equipment where the tacho or brake has failed, or where bearings and windings have reached end of life. Keeping a stocked spare with the exact reference helps reduce machine downtime during unplanned stops, especially on vertical axes that cannot remain unsecured. Many maintenance teams schedule a preventive swap during planned outages and keep the removed unit for repair service or core return.

Each motor supplied by Cnc-shopping can be provided as a tested unit or refurbished unit depending on sourcing, verified on CNC simulators by skilled engineers. Typical checks include insulation and winding measurements, brake actuation, tacho output behavior and a dynamic run test with servo drive coupling. Units are packed for industrial shipping, and warranty terms are available with the quotation.

This reference is often required as an emergency spare to get legacy machines back online. Cnc-shopping supports obsolete part sourcing for older SIEMENS motion platforms and can assist with exchange service or repair service when feasible. With proper spare-part support, mature CNC installations can remain productive without a full control retrofit.

Frequently asked questions about 1FT5072-1AF71-1EB0:

What feedback does this motor provide to the drive?
It is equipped with an integrated tacho generator that supplies analog speed feedback for legacy servo amplifiers. Position control is typically handled by the CNC using external position transducers already installed on the machine.

Can I replace any 1FT5072 motor with this code?
Use this unit as a drop-in replacement only when the full code on the nameplate matches. That ensures the same mechanical dimensions, electrical characteristics, connector orientation and brake configuration.

Is the brake suitable for vertical axes?
Yes, the integrated holding brake is intended to secure the axis at standstill. Always verify the brake specifications on the nameplate and confirm that the machine’s drive and wiring match the required parameters.

What shaft interface is provided?
The motor features a keyed output shaft for positive torque transmission with standard keyed hubs or couplings. Confirm hub size and key dimensions against the machine’s existing coupling before installation.

What testing is performed on refurbished units?
Engineers test insulation resistance, winding balance, brake release and holding torque, and check tacho linearity with the drive simulator. A functional run test under load verifies smooth operation and acceptable vibration and noise levels.

Availability may vary by sourcing. Contact Cnc-shopping for current options including replacement unit, refurbished unit, or repair service, with worldwide shipping and fast dispatch depending on inventory.