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Yaskawa SGM7J-04AFA21 Sigma-7 400W Servo Motor with Plain Shaft

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Yaskawa SGM7J-04AFA21 Sigma-7 400W Servo Motor with Plain Shaft

Name: Yaskawa SGM7J04AFA21 Sigma7 400W Servo Motor with Plain Shaft
Brand: YASKAWA
Price: 326 USD

Price : USD 326/Unit

Packaging Details : original packing

Motor Speed : 3000 RPM Rated; 6000 RPM Maximum

Model Number : SGM7J-02AFA21

Encoder Feedback : 24-Bit Incremental Serial Encoder

Supply Ability : 10Units per Month

Rated Output : 400 W

Instantaneous Maximum Torque : 4.46 Nm

Payment Terms : D/A, D/P, T/T, Western Union, MoneyGram,

Rated Current : 2.5 Arms

Delivery Time : 3-5Days

Power Supply Voltage : 200 VAC Class

Brand Name : YASKAWA

Shaft and Options : Straight Shaft with Key and Tap; Without Brake or Oil Sealz

Model : SGM7J-04AFA61

Rated Torque : 1.27 Nm

Protective Structure : Totally Enclosed Self-Cooled IP67; Excluding Shaft Opening

Place of Origin : USA

MOQ : 1

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Product Overview

The Yaskawa SGM7J-04AFA21 is a 400 W Sigma-7 medium-inertia rotary servo motor designed for precise industrial motion control. It provides a rated torque of 1.27 Nm at 3000 RPM and supports a maximum speed of 6000 RPM.

This configuration uses a 24-bit incremental serial encoder and a straight output shaft without a keyway. The final 21 specification does not include a holding brake or oil seal.

Main Features

400 W rated output for 200 VAC-class servo systems.
Medium-inertia design for stable load matching.
Rated torque of 1.27 Nm and instantaneous maximum torque of 4.46 Nm.
Rated speed of 3000 RPM and maximum speed of 6000 RPM.
24-bit incremental serial encoder.
Straight output shaft without a keyway.
Compact 60 mm flange-class construction.
No integrated holding brake or oil seal.

Technical Specifications

Manufacturer	Yaskawa Electric
Series	Sigma-7 SGM7J
Model	SGM7J-04AFA21
Motor Type	Medium-Inertia Rotary Servo Motor
Power Supply Class	200 VAC
Rated Output	400 W
Rated Current	2.5 Arms
Instantaneous Maximum Current	9.3 Arms
Rated Torque	1.27 Nm
Instantaneous Maximum Torque	4.46 Nm
Rated Motor Speed	3000 RPM
Maximum Motor Speed	6000 RPM
Encoder	24-Bit Incremental Serial Encoder
Shaft End	Straight Without Key
Options	Without Holding Brake or Oil Seal
Approximate Dimensions	60 * 74.7 * 115.5 mm
Approximate Motor Weight	1.1 kg
Protective Structure	IP67, Excluding Shaft Opening

Compatible System and Applications

The SGM7J-04AFA21 is normally used with a compatible 400 W Sigma-7 SERVOPACK such as an SGD7S-2R8A capacity. The complete drive model must be selected according to the controller interface, required safety functions, encoder support and machine communication system.

Typical applications include electronic assembly machinery, semiconductor equipment, compact packaging systems, inspection machines, printing equipment, indexing mechanisms and robotic positioning axes.

Maintenance and Replacement Notes

The output shaft does not have a keyway. Confirm that the installed coupling uses a suitable clamping, compression or shrink-fit arrangement. It should not be mechanically replaced by a keyed-shaft version without checking shaft engagement and coupling compatibility.

Verify the complete suffix, encoder type, shaft diameter, shaft length, flange, connectors, SERVOPACK capacity, firmware and motor parameter file. This version has no holding brake and requires a separate holding method for suspended loads.

Related Models

Related models include SGM7J-04AFA61 with a keyed and tapped shaft, SGM7J-04AFA2C with a plain shaft and holding brake, SGM7J-04A7A21 with an absolute encoder and SGM7J-04AFA6C with a keyed shaft and holding brake.

Inquiry and Supply Notes

Please provide the complete motor nameplate, installed SERVOPACK model, coupling design, cable part numbers and photographs of the shaft and connectors. Product condition and included components must be confirmed for each quotation.

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