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Linear Motion Rods 2PCS 8mmx 400mm (0.315 x 15.748 inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide for 3D Printer, DIY, CNC - Metric h8 Tolerance

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$11.99

$ 6 .99 $6.99

In Stock

1.:Diameter 8mm


2.Size:Sk8 Linear Rail Shaft Support


  • HIGH FINISH AND STRAIGHTNESS:The surface of the Linear Motion Rods is treated by special grinding and hard chrome plating technology, and then mirror polished. The surface is smooth, without cracks, and even with no bubbles.
  • HIGH HARDNESS: Adapting C45 high quality steel, high frequency quenching, surface chromium plating(10um-20um). The case hardness could be reach to 57-62 HRC. Durable and corrosion-resistant.
  • HIGH ACCURACY: Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm), length 400mm, tolerance ± 0.5mm ( 399.5mm - 400.5mm ).
  • HUMANIZATION DESIGN:Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.
  • WHAT YOU GET: 2 PCS 8mm x 400mm Linear Motion Shaft. 30-Days money back guarantee, 1-Year warranty, 24/7 friendly customer service.



Product Description

Linear Motion Rods

Material:C45 carbon steel(surface chromium plating(10um-20um))

Hardness:57-62 HRC

Diameter:6mm/8mm/10mm/12mm.tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)

length:150mm/200mm/250mm/300mm/320mm/330mm/350mm/400mm/450mm/500mm/550mm/600mm/700mm/800mm(optional).tolerance ± 0.5mm ( 499.5mm - 500.5mm )

Ultra high smoothness

The rods cut smooth surface without burr,surface mirror polishing treatment, ,smooth and beautiful,corrosion resistance and smooth operation.

Linear Motion Rod Shaft Guide

High stability

Using 45# high carbon steel material, stable property, pure steel impurity content is low,the surface of hard chromium plating treatment, surface hardness of 57-62 HRC,Strong and durable, high stability and almost no noise.

Easy to install

Easy to install

Using both ends of the humanized chamfering treatment,easier to install linear bearings and won't hurt fingers when installing it.

HIGH ACCURACY

High precision

High precision of size specification,Diameter tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm), length tolerance ± 0.5mm ( 499.5mm - 500.5mm ).

Complete specifications

Complete specifications

From the inner diameter of 6mm to 12mm, length of 150mm to 800mm, a variety of specifications are complete, to meet the needs of 3D printers, CNC and other automation equipment.


Raul A. Lugo
2025-09-07 11:29:29
No issues receiving straight rods. They worked perfectly for my application.
david
2025-09-01 14:33:39
size measures nearly perfect to size bought through entire rod, straight and solid, use it on sanding jig for fishing rod cork handles i build and it works great.
Montana
2025-08-22 14:37:23
Great rods great price thay work well
Ian Mazursky
2025-08-21 12:29:41
These are very nice 6mm rods. Id definitely buy more.
Mr. Phillip
2025-08-06 10:54:39
I used these with pillow blocks to make a rock tumbler. In use continuously for months now with no sugn of wear.
Tellinit Likeitis
2025-08-03 17:47:36
I bought these to repair a Bergeon watch waterproof tester that originally had an aluminum rod that had corroded. I figured to upgrade with stainless. I had to cut it to a shorter length no problem I thought took it to my bandsaw. All the blade did was make a small scuffed spot. Had to cut it with an abrasive wheel. Then I had to drill a small hole in the side for a tiny roll pin. I destroyed several cobalt drill bits before giving up and tig welding a bit of rod on the side. The rods I got were perfectly straight.
garyd9
2025-07-06 15:06:43
There isn't much to write in a a review when the product is exactly as described by the seller. The rods were cut to the length described by the seller, the correct diameter, etc. No issues whatsoever.
Willie Lugo
2025-06-25 15:15:18
Excellent product
Occasional Customer
2025-05-29 10:04:08
I used these rods to refurbish Y axis assembly of my Prusa MINI and so far they perform fine. They arrived in a sturdy cardboard box, which I appreciated, except both rods were in one plastic sleeve, thus touching each other. It would be better to have the rods separated to prevent any potential damage to precision ground surfaces. Luckily, I didn't notice any damage, trimmed the rods to proper length and they work fine so far.
Kim Campbell
2025-04-06 10:28:48
Not much to say about these, they're exactly as advertised. Perfectly straight and dimensions are accurate, linear bearings run smooth on them
prototyper
2024-12-21 15:51:01
Beautifully made to good tolerances. My project was more successful because of finding these good quality shafts.
raposo Benjamin
2024-12-11 16:43:35
need to make the hole youself in the end of the bar
Richard S.
2024-11-30 17:57:14
Bought this to mount a laser sight for my metal saw. Drilled it out to size, works perfect.
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