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2PCs 8mm x 1000mm (.315 x 39.37 inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric h8 Tolerance

4.7 4.7 out of 5 stars 514 ratings
$33.99 $17.00 per Item
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Extra Savings Save 10% on LMK8LUU Flange Linear Bearing when you purchase 1 or more Qualifying items offered by ReliaBot. 3 Applicable Promotion(s)
  • Save 10% on LMK8LUU Flange Linear Bearing when you purchase 1 or more Qualifying items offered by ReliaBot. Shop items
  • Save 5% on SK8 8mm Linear Rod Support when you purchase 1 or more Qualifying items offered by ReliaBot. Shop items
  • Save 5% on KP08 ID08mm Mounted Pillow Block Bearing when you purchase 1 or more Qualifying items offered by ReliaBot. Shop items
Diameter 8mm

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Purchase options and add-ons

  • The material is carbon steel, which is very suitable for linear motion rod.
  • The surface has been chrome plated to enhance the hardness.
  • Chamfer on both ends, easier to install linear bearings and won't hurt fingers when installing it.
  • Diameter 8mm, tolerance -0.005mm to -0.03mm ( 7.995mm - 7.97mm)
  • Length 1000mm ( 1 meter ) , tolerance ± 0.5mm ( 999.5mm - 1000.5mm )

Frequently bought together

ReliaBot 2PCs 8mm x 1000mm (.315 x 39.37 inches) Case Hardened Chrome Plated Linear Motion Rod Shaft Guide - Metric h8 Tolera
$33.99 ($17.00/Item)
Get it as soon as Monday, May 6
In Stock
Sold by ReliaBot and ships from Amazon Fulfillment.
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12 Pcs LM8UU Linear Ball Bearings, 8mm Bore Dia, 15mm OD, 24mm Length with Double Side Rubber Seal Great for CNC, 3D Printer
$11.99 ($1.00/Item)
Get it as soon as Saturday, May 4
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Sold by YuHuiH and ships from Amazon Fulfillment.
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Zeberoxyz 10 PCS/Pack 8mm Shaft Lock Collar T8 Lead Screw Lock Ring Stainless Steel Material Isolation Apply for 3D Printer A
$8.89
Get it as soon as Saturday, May 4
In Stock
Sold by Zeberoxyz 3D and ships from Amazon Fulfillment.
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Product details

  • Package Dimensions ‏ : ‎ 40 x 1.5 x 1.5 inches; 2 Pounds
  • Item model number ‏ : ‎ RD048-1000
  • Date First Available ‏ : ‎ February 6, 2022
  • Manufacturer ‏ : ‎ ReliaBot
  • ASIN ‏ : ‎ B09RVRQXRR
  • Customer Reviews:
    4.7 4.7 out of 5 stars 514 ratings

Product Description

Packing list:
2 * Diameter 8mm Length 1000mm ( 1 meter ) Linear Motion Rod

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
514 global ratings

Customers say

Customers like the quality, straightness, size and value of the linear guides and rails. For example, they mention it's a solid purchase, works well and is good value for money. Customers are also satisfied with smoothness.

AI-generated from the text of customer reviews

28 customers mention28 positive0 negative

Customers are satisfied with the quality of the linear guides and rails. They mention that the product is of great quality, and is well-made. Some customers also say that the rods came in excellent condition.

"...these for robotics, CNC, or 3D printing, but they were absolutely perfect for the project they were purchased for...." Read more

"...was well packed, product was dimensional as described, quality of finish was great, shipping was on time...." Read more

"...Nice quality other than that small problem." Read more

"...This is good stock, will make a lot of small machines easier to build, there are so many accessories available." Read more

21 customers mention21 positive0 negative

Customers are satisfied with the straightness of the linear guides and rails. They mention that both rods are perfectly straight, much straighter than other low price rods, and of consistent size.

"...Great straightness and surface finish...." Read more

"Rods were of consistent size and straight, time will tell how they will wear but I'm optimistic." Read more

"...Both rods were perfectly straight. They cut easily with my chop saw and a 7" diamond metal cutting blade. Dimensions were as advertised...." Read more

"...There was a notable difference in precision, accuracy, and straightens...." Read more

15 customers mention11 positive4 negative

Customers like the size of the linear guides and rails. They mention that the dimensions are spot on, uniform, and precise down to 0.01 mm. The diameter was precisely 8mm, and it came with the measurements that they asked for. The quality of finish is great, and everything fit perfectly when making their 2D plotter.

"Package was well packed, product was dimensional as described, quality of finish was great, shipping was on time...." Read more

"...Dimensions were as advertised. Shipped promptly and arrived on time." Read more

"...These are perfect for my machine." Read more

"They were about 5mm too short for the bed of my Robo R1+ but I was able to make some spacers to deal with the problem...." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the performance of the linear guides and rails. They mention that it works well, has no issues, and is easy to install.

"...Great straightness and surface finish. Worked very well and do not any grooves where the rolling elements make contact after 100h like the Anet rods..." Read more

"...The stock rods that Prusa uses were 99.9% straight. Overall these new rods work fine." Read more

"I actually used this with a 3d printed bearing and was surprised at how well they worked!" Read more

"Rods came in excellent condition. No scratches or bends and will work perfect on my printrbot simple metal" Read more

6 customers mention6 positive0 negative

Customers are satisfied with the smoothness of the linear guides and rails. They mention that the rods are smooth with no burs.

"...Great straightness and surface finish...." Read more

"...sucks because they seem like great quality for the price and are very polished" Read more

"...reviews talked of bent rods but mine were perfectly straight and absolutely smooth. The diameter was precisely 8mm, pretty much all you could ask for." Read more

"rods are smooth with no burs and straight" Read more

6 customers mention6 positive0 negative

Customers appreciate the value of the linear guides and rails. They say it's a great quality for the price.

"...Really sucks because they seem like great quality for the price and are very polished" Read more

"Packaged really well and great price. I checked to see if they were straight and to my surprise they were perfect to my measurement equipment...." Read more

"...rods are the correct diameter and most likely straight.Good value." Read more

"...A bargain price for a quality product." Read more

Straightest rods I have ever tested. Excellent customer service
5 Stars
Straightest rods I have ever tested. Excellent customer service
I have tested several rods using a dial indicator to check for straightness. I use the HF digital dial indicator on a magnetic stand. The key to getting consistent results is to have a follower that rides on top of the rod so that minor xy position error does not affect the dial indicator reading. I use a piece of glass as it provides a perfectly flat surface to the rod. Good stock rods are typically <0.05mm out of round. Unfortunately one of my boxes was damaged in shipping, but one of the rods was undamaged. It measured better than 0.01mm!. The second set of rods arrived in perfect condition with high denisty foam separating the rods and protecting them from the box at 5 different points. Customer service was excellent for the damaged box. I will update when I get a chance to test the second set of rods
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Top reviews from the United States

JD
5.0 out of 5 stars Excellent rods
Reviewed in the United States on June 24, 2018
Size: Diameter 8mmStyle: 362mm longVerified Purchase
These were well packaged and both were perfectly straight. I'm very pleased with these and will buy again from this seller.
2 people found this helpful
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Mrs. A
5.0 out of 5 stars Solid and straight
Reviewed in the United States on March 17, 2024
Size: Diameter 8mmStyle: 320mm longVerified Purchase
Precision machined and looks great!
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jody trobaugh
5.0 out of 5 stars These were perfect for the project I had
Reviewed in the United States on August 16, 2023
Size: Diameter 8mmStyle: 300mm longVerified Purchase
I didn't use these for robotics, CNC, or 3D printing, but they were absolutely perfect for the project they were purchased for. I didn't spend much time on any measurements, but they were consistent enough for what I was doing. I wouldn't hesitate to buy them again.
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Trung
5.0 out of 5 stars Nice quality straight!
Reviewed in the United States on February 26, 2019
Size: Diameter 8mmStyle: 362mm longVerified Purchase
Quality rods. Used for my custom zaribo 3d printer. Good packaging
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Mark B
5.0 out of 5 stars Straightest rods I have ever tested. Excellent customer service
Reviewed in the United States on September 20, 2019
Size: Diameter 8mmStyle: 380mm longVerified Purchase
I have tested several rods using a dial indicator to check for straightness. I use the HF digital dial indicator on a magnetic stand. The key to getting consistent results is to have a follower that rides on top of the rod so that minor xy position error does not affect the dial indicator reading. I use a piece of glass as it provides a perfectly flat surface to the rod. Good stock rods are typically <0.05mm out of round. Unfortunately one of my boxes was damaged in shipping, but one of the rods was undamaged. It measured better than 0.01mm!. The second set of rods arrived in perfect condition with high denisty foam separating the rods and protecting them from the box at 5 different points. Customer service was excellent for the damaged box. I will update when I get a chance to test the second set of rods
Customer image
Mark B
5.0 out of 5 stars Straightest rods I have ever tested. Excellent customer service
Reviewed in the United States on September 20, 2019
I have tested several rods using a dial indicator to check for straightness. I use the HF digital dial indicator on a magnetic stand. The key to getting consistent results is to have a follower that rides on top of the rod so that minor xy position error does not affect the dial indicator reading. I use a piece of glass as it provides a perfectly flat surface to the rod. Good stock rods are typically <0.05mm out of round. Unfortunately one of my boxes was damaged in shipping, but one of the rods was undamaged. It measured better than 0.01mm!. The second set of rods arrived in perfect condition with high denisty foam separating the rods and protecting them from the box at 5 different points. Customer service was excellent for the damaged box. I will update when I get a chance to test the second set of rods
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7 people found this helpful
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Mike N
5.0 out of 5 stars Excellent linear motion rod
Reviewed in the United States on September 9, 2022
Size: Diameter 8mmStyle: 150mm longVerified Purchase
Package was well packed, product was dimensional as described, quality of finish was great, shipping was on time. Nothing bad to say about the Reliabot products.
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Krestoverson
5.0 out of 5 stars Great
Reviewed in the United States on July 1, 2019
Size: Diameter 8mmStyle: 500mm longVerified Purchase
Bought these to replace the awful rods that came with the Anet A8 plus. Great straightness and surface finish. Worked very well and do not any grooves where the rolling elements make contact after 100h like the Anet rods did.
9 people found this helpful
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Shadow
4.0 out of 5 stars A little short
Reviewed in the United States on July 10, 2023
Size: Diameter 8mmStyle: 350mm longVerified Purchase
They were about 5mm too short for the bed of my Robo R1+ but I was able to make some spacers to deal with the problem. Nice quality other than that small problem.
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Top reviews from other countries

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Sid Bitters
5.0 out of 5 stars These fit perfectly in my Prussa
Reviewed in Canada on April 21, 2024
Size: Diameter 8mmStyle: 370mm longVerified Purchase
In can’t comment on wear but they fit perfectly in the x-axis of my purse 2.5s.
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Coko
5.0 out of 5 stars Correcto
Reviewed in Spain on April 22, 2023
Size: Diameter 8mmStyle: 330mm longVerified Purchase
Buena calidad
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Bernd Sander
5.0 out of 5 stars Ersatzwellen Y Achse für Prusa i3 MK3s
Reviewed in Germany on November 27, 2019
Size: Diameter 8mmStyle: 330mm longVerified Purchase
Die Originalwellen sind ein graus und nach dem Austausch mit neuen Lagern läuft die Y Achse besser
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MikeL
5.0 out of 5 stars Parfaitement linéaire & très bonne finition
Reviewed in France on April 14, 2019
Size: Diameter 8mmStyle: 410mm longVerified Purchase
Acheté en remplacement pour mon imprimante 3D, elles sont parfaitement linéaires(ce qui est rare), la rigidité est excellente et le traitement de cémentation est de très bonne qualité.
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MikeL
5.0 out of 5 stars Parfaitement linéaire & très bonne finition
Reviewed in France on April 14, 2019
Acheté en remplacement pour mon imprimante 3D, elles sont parfaitement linéaires(ce qui est rare), la rigidité est excellente et le traitement de cémentation est de très bonne qualité.
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Valerio
5.0 out of 5 stars barre ottime
Reviewed in Italy on May 31, 2019
Size: Diameter 8mmStyle: 400mm longVerified Purchase
Salve,
comprate e montate queste barre per una cnc. Che dire fanno il loro dovere sono moto ben rifinite i cuscinetti scorrono molto bene . Le consiglio !!!
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