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Siemens 1FK7042-5AF71-1AH0 SIMOTICS S Servo Motor with Brake

Siemens SIMOTICS S 1FK7 Servo Motor with Brake & Plain Shaft.

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ManufacturerSiemens

Part number1FK7042-5AF71-1AH0

Torque 3.0 Nm

Speed 3000 rpm

Power 0.82 kW

Cooling Natural

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SIMOTICS S synchronous servo motor Integrated holding brake Plain shaft 1FK7 Compact series 3.0 Nm nominal torque 0.82 kW rated power

Product description

The Siemens 1FK7042-5AF71-1AH0 is a SIMOTICS S compact synchronous servo motor equipped with a holding brake and a plain shaft. It provides 3.0 Nm of torque at 3000 rpm, with a continuous power output of 0.82 kW, utilizing natural cooling. The motor conforms to IM B5 mounting standards and features a 270° rotatable power/signal connector. It is fitted with a 2048 P/REV incremental encoder (SIN/COS 1 VPP) and a plain shaft (tolerance N). This motor has a degree of protection of IP64.

This servo motor is ideal for applications requiring both precise motion control and the ability to hold position when power is removed, combined with the flexibility of a plain shaft. Common applications include vertical axis drives in automation, robotic end-effectors, and machinery requiring secure positioning, across industries like logistics, automation, and manufacturing.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 1FK7042-5AF71-1AH0. We specialize in providing cost-effective surplus automation components. Partner with Stanlo Automation for reliable access to quality servo motors and other industrial parts.

Technical specifications

Torque	3.0 Nm
Speed	3000 rpm
Power	0.82 kW
Cooling	Natural
Mounting	IM B5
Encoder	Incremental 2048 P/REV
Shaft	Plain
Holding Brake	Yes
IP Rating	IP64

Common applications

Vertical Axis Drives

Robotic End-Effectors

Industrial Automation

Logistics

Manufacturing Equipment

Compatible systems

Designed for use with Siemens drives and controllers (e.g., SINAMICS, SIMODRIVE)

Also known as

1FK70425AF711AH0 Siemens Servo Brake Plain Shaft SIMOTICS S motor brake shaft

Replaces / compatible with

This Siemens SIMOTICS S 1FK7 series servo motor combines a holding brake and a plain shaft. It's designed for integration within Siemens control systems.

Technical note

Expert tip

When using the holding brake, ensure the servo drive is configured to manage its engagement and disengagement cycle times for optimal performance and longevity.

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Frequently asked questions

How does the holding brake function on the 1FK7042-5AF71-1AH0?

The integrated holding brake on the Siemens 1FK7042-5AF71-1AH0 engages automatically when power is removed or when commanded by the drive. It provides a secure mechanical stop to maintain the motor's position.