2pcs MGN12H 300mm Linear Rail, Linear Guide for Update 3D Printer and CNC Machine, with 1 Carriage Block (MGN12H, 300mm, 2pcs)

【Easy to install】Standard MGN12 linear rail. Width is 12mm, Thickness is 8mm. With pre-drilled ⌀3.5mm mounting hole. The mount holes are metric. The spacing is 25mm. This linear rails are supposed to use M3*8mm bolts and T nuts.
【High Quality Material】The Linear rail is made of very hard stainless steel, which has the characteristics of strong rigidity, high precision, and rust resistance. It adopts four-point contact design, which can bear the load in all directions.
【Smooth and Quiet】All of them can easily pass the free fall test at 45° after lubrication. The rails are very smooth. The carriage moves smoothly and quiet, no binding, good quality, nice workmanship. Compared with other brands of rails, it has a longer service life.
【Wide application】The linear guide are small size and light weight, especially suitable for miniaturized equipment, such as routers, 3D printers and plasma cutters etc.
【Outstanding service】If there is a issues with the product you received, send us a message and we will help you out. If the product is damaged during use, we will replace it with a new one for you. Thanks.

Packing list:

MGN12 linear rail*2

MGN12H carriage block*2

The spacing of each hole is 25mm, the number of holes for different lengths of rails:

200mm (8 holes), 250mm (10 holes), 300mm (12 holes), 350mm (14 holes)

400mm (16 holes), 450mm (18 holes), 500mm (20 holes), 550mm (22 holes)

Difference between MGN12H block and MGN12C block:

MGN12H: Long Carriage Block, size 45.4mmx27x10mm

MGN12C: Short Carriage Block, size 34.7mmx27x10mm

Please select the correct size and type you need.

Installation and usage advice:

1. Please lubricate the rail and slider again before installation.

2. When installing the rail, do not remove the block unless necessary.

3. When installing the rail, do not switch the block of the rail arbitrarily, so as not to affect the accuracy.

4. Lubricate regularly to reduce friction of rolling parts, prevent burns and reduce wear, and prolong service life.

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