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Siemens 1FK7105-2AF71-1RH0 SIMOTICS S Motor - Smooth Shaft, With Brake

Siemens SIMOTICS S Synchronous Motor with brake and smooth shaft

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ManufacturerSiemens

Part number1FK7105-2AF71-1RH0

PN 8.2kW

UDC 600V

M0 48Nm (100K)

NN 3000rpm

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8.2kW Power Output 3000rpm Max Speed 48Nm Torque Integrated Holding Brake Smooth Shaft Design Absolute Encoder with Drive-CLiQ

Product description

The Siemens SIMOTICS S Synchronous Motor 1FK7105-2AF71-1RH0 is designed for high-precision applications requiring holding torque. It features a nominal power of 8.2kW, a nominal speed of 3000rpm, and a torque of 48Nm. This naturally cooled motor conforms to IMB 5 design standards (IM V1, IM V3) and has a flange 1 mount. It includes a rotatable power connector, a 20-bit +12-bit multi-turn absolute encoder with Drive-CLiQ interface (AM20DQI), and an IP64 degree of protection. This model is equipped with a smooth shaft (tolerance N) and an integrated holding brake.

This motor is ideal for applications where maintaining position during power-off is critical, such as vertical axes in automation, robotic arms, or any system requiring reliable load holding. It is commonly used in industries like machine building, automotive manufacturing, and logistics automation.

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Technical specifications

PN	8.2kW
UDC	600V
M0	48Nm (100K)
NN	3000rpm
Cooling	Naturally cooled
Design	IMB 5 (IM V1, IM V3)
Flange	1
Encoder	AM20DQI (20-bit +12-bit multi-turn)
Shaft	Smooth shaft, tolerance N
Brake	With holding brake
IP Rating	IP64

Common applications

Vertical Axes

Robotic Arms

Load Holding Applications

Machine Building

Automotive Manufacturing

Logistics Automation

Compatible systems

Siemens SIMATIC Controllers Drive Systems

Also known as

Siemens SIMOTICS S 1FK7-CT 1FK7 Servo Motor with Brake Smooth Shaft Siemens 1FK7 Motor

Replaces / compatible with

This motor from the Siemens SIMOTICS S 1FK7 series is designed with a smooth shaft and a holding brake. It serves as a direct replacement for other 1FK7 motors with similar configurations where load holding is required.

Technical note

Expert tip

When using the holding brake, ensure the control system is configured to release the brake before attempting to move the motor shaft to prevent damage.

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Frequently asked questions

What is the function of the holding brake in the 1FK7105-2AF71-1RH0?

The holding brake in the 1FK7105-2AF71-1RH0 is designed to maintain the motor's position when power is removed or in emergency stop situations. This is crucial for applications with vertical loads or where precise positional integrity is required.