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Main image of 2pcs MGN9 300mm Linear Guide Rail with 2pcs MGN9H Sliding Carriage Block Bearing Steel and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Silver

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2pcs MGN9 300mm Linear Guide Rail with 2pcs MGN9H Sliding Carriage Block Bearing Steel and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Silver

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Specification: 2pcs x 300mm linear rail,2pcs x MGN9H carriage block suitable for 9mm rail, 2pcs mini linear guide suitable for MGN9H carriage block, is designed for use in 3D printers and CNC machines.
Material: The linear guide rail and the carriage block are made from bearing steel material, and the mini linear guide is made of plastic material, to ensure stability and smooth operation.
Advantage: The linear guide rail has a limit block at both ends, which can play the role of collision protection; The MGN9H sliding carriage block can provide precise linear motion control for 3D printers and CNC machine tools, minimizing vibration, ensuring smooth motion and reducing equipment wear; Plastic mini linear guide to assist installation, do not let the ball fall off, suitable for MGN9H slide block.
Install Method: First, install the mini linear guide on the slider, place the slider parallel to the guide rail, and then gently push the slider into the guide rail. After the slide into the guide rail, the installation is successful without dropping the steel ball.
Wide Application: This linear guide rail system is great for 3D printers and CNC machines, providing accurate and reliable linear motion, and is also suitable for various applications, including precision printing, engraving, milling, and other tasks requiring controlled movement.

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Linear Motion Guides

Essential components in various industries, help in achieving smooth and precise linear motion for different applications

Carriage Block
Carriage Block
Shaft Support
Linear Motion Rod
Aluminum Extrusion Profile
Lead Screw

Linear Motion Guides

Essential components in various industries, help in achieving smooth and precise linear motion for different applications

Carriage Block
Carriage Block
Shaft Support
Linear Motion Rod
Aluminum Extrusion Profile
Lead Screw

2pcs MGN9 300mm Linear Guide Rail with 2pcs MGN9H Sliding Carriage Block Bearing Steel and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Silver

Additional Information
First Listed on Newegg	August 04, 2026

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Item#: 9SIC7P8M3K8755

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2pcs MGN9 300mm Linear Guide Rail with 2pcs MGN9H Sliding Carriage Block Bearing Steel and 2pcs Plastic Mini MGN12 Linear Guide for DIY 3D Printers and CNC Machine, Silver

Linear Motion Guides

Carriage Block

Carriage Block

Shaft Support

Linear Motion Rod

Aluminum Extrusion Profile

Lead Screw

Linear Motion Guides

Carriage Block

Carriage Block

Shaft Support

Linear Motion Rod

Aluminum Extrusion Profile

Lead Screw

Learn more about the Detailed Specifications

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info