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MGN12H 300mm Linear Rail 11.81'' with MGN12H Steel Carriage Block for DIY 3D Printer and Machines

Free shipping on orders over $29.99

$21.99

$ 8 .99 $8.99

In Stock

1.Style:Rail + Mgn12h Carriage Block


2.Size:100mm


  • 1 x 300mm/11.81" Linear Rail,1x MGN12H Carriage Blocks.Linear Guide Rail adpots blackening treatment on surface to prevent rusting in long-term use.
  • Rail Guide Material: Heavy-duty bearing steel,which is more durability,high stiffness stiffness,high accuracy,smooth running,low noise than others.
  • MGN12H Carriage Block Material: Stainless Steel.Blocks are pre-loaded.
  • Suggested to use M3 T nut and screws if you fix it to 20 series EU Al-profile.There are two rubber stoppers on each side of the linear rail to prevent the sliding block from falling out.
  • The linear guide are small size and light weight,especially suitable for miniaturized equipment,such as routers,3D printers and plasma cutters etc.



Product Description

sfu1204

NUIBBYED

NUIBBYED is a company that specializes in manufacturing high-quality bearings and guide rails. With a focus on precision and durability.NUIBBYED's core values are innovation, quality, and reliability, and our company continually strives to improve and enhance its products and services to meet the ever-changing needs of customers.

mgn12h

Linear Ball Bearings

The all-black MGN12 can be better hidden in the 3D printer, which is more beautiful

  • Model: MGN12-H
  • Material: Steel
  • Size: 100MM -700MM
  • This item includes:

1Pcs MGN12 Linear Sliding +1 Pcs MGN12-H Type Linear Slider Carriage Block(BLACK)

Applied in semiconductor manufacturing equipment, printed circuit boards, IC assembly equipment, medical equipment, robotic arms, precision measurement machine and other small linear motion device.


Customer
2025-08-18 18:46:24
I used this to add a Z axis to a laser engraver. They had some minor grinding, all of that went away with running some grease down the grooves and moving the carriage back and fourth a few times. Great bang for your buck if you need a small rail.
Nathen Foster-Lentz
2025-07-06 09:40:40
Works as it should moves free and smooth great value fits perfectly
William Brown
2025-07-01 14:08:57
So far this had been a good purchase and don't forget to clean and grease the rail block. I use an nlgi 1 Mobil brand grease.
Malaki
2025-05-17 16:35:29
I've never worked with linear rails aside from Hiwin rails that I got in a 3D printer kit.This rail is very loud, even after re-greasing, but it arrived straight and works for my purposes. An acceptable cheap linear rail.
Drew George
2025-03-02 14:39:30
Don't be a moron like me and pull the stopper off and let carriage block fall off and hit the floor. FYI, I now know there are 30 (60 total for each block) metal balls on each side. :)
Ariel
2025-01-20 13:52:41
Recibo sin problemas
Mogujerry
2025-01-05 16:35:15
Very grindy and bindy, also appear to not have enough ball bearings in them, there is space in between the ball bearings on both sides of the block where it looks like they need 1 or 2 more bearings. I purchased 2 and both are like this
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