I recently bought a stereo microscope head and needed a stand for it. The best stands are double arm boom stands, which use two linear rails. I have a 3D printer, so I figured, why not just build one? Looking at McMaster-Carr, linear rails and pillow blocks are EXPENSIVE. I looked elsewhere online, and they still weren't anywhere near what I wanted to pay. So then, of course, I checked Amazon and found these. I probably could have gotten away with the 16mm rails for my application, but I decided on the 20mm x 1m.
First of all, they're super heavy. I guess that should be expected. They have a nice coating of oil on them, which seems to get on everything like anti-seize does - nothing a little brake cleaner can't take care of. The rails are straight and have a nice polish, and they measure 20mm +0.1/-0.2. The ends aren't chamfered, which would have been preferable, but that's an easy fix. The pillow blocks seem well made, with recirculating ball type bearings in them. Putting the two together, the blocks slide nicely on the rails, though they're a bit loud. The dust seals on the blocks seem to be well-fitted and there's no discernible play in the bearings.
I need to cut these rails down, and I did so using an angle grinder with a cutoff wheel. I then polished and chamfered the ends with a 120 grit flap disc. Cutting took a couple of minutes per cut. You could probably do it with a hacksaw but it'll take you all afternoon. Out of curiosity, I tried drilling into a piece of the rail and I was able to drill without too much problem, so the rails aren't too terribly hard.
Overall, these are a great choice if you need a set of linear rails, pillow blocks, and mounting blocks. I'll be posting my build to Hackaday and thingivese, and I'll be recommending these rails to anyone looking to build their own microscope stand.
VEVOR Linear Rail, 2 PCS SBR 20-2200mm, Linear Guideway Rail, and 4 PCS SBR20UU Square Type Carriage Bearing Blocks, Linear G
4.5 | 318 ratings
Price: 112.99
Last update: 07-23-2024
About this item
SBR Linear Guide Rail Set: SBR20-2200 mm Linear motion guide rail includes 2 x 86.6 in/2200 mm length SBR20 guide rails and 4 x SBR20UU slide blocks. Dynamic Load Per Block: 882 N, Static Load Per Block: 1370 N.
Durable & Long-lasting: The linear rail is made of carbon steel and aluminum with a chrome-plated surface for rust resistance and high durability. Built-in 4 aluminum slide blocks and ball bearings for smooth and unobstructed sliding.
Low Noise Sliding: Aluminum SBR slide blocks and carbon steel linear shaft are perfectly paired. The built-in ball bearing provides low friction movement and is smooth and not tilted, allowing you to control more labor-saving.
High Precision: Precise circular shaft dimensions and straightness, ensuring high accuracy, repeatability, and stability in its motion. The sturdy aluminum base and slide block have accurate mounting holes, making it easy for users to perform reliable installation and connection.
Wide Application: The SBR linear rail set is versatile and suitable for all kinds of high-load automation equipment and DIY project, such as router/mill/lathe sleds, 3D printers, laser engravers, CNC machines, trainer rocker plates, etc.
Durable & Long-lasting: The linear rail is made of carbon steel and aluminum with a chrome-plated surface for rust resistance and high durability. Built-in 4 aluminum slide blocks and ball bearings for smooth and unobstructed sliding.
Low Noise Sliding: Aluminum SBR slide blocks and carbon steel linear shaft are perfectly paired. The built-in ball bearing provides low friction movement and is smooth and not tilted, allowing you to control more labor-saving.
High Precision: Precise circular shaft dimensions and straightness, ensuring high accuracy, repeatability, and stability in its motion. The sturdy aluminum base and slide block have accurate mounting holes, making it easy for users to perform reliable installation and connection.
Wide Application: The SBR linear rail set is versatile and suitable for all kinds of high-load automation equipment and DIY project, such as router/mill/lathe sleds, 3D printers, laser engravers, CNC machines, trainer rocker plates, etc.
Product Description
SBR Linear Guide Rail
VEVOR high-quality SBR linear guide rail includes 2 guide rails and 4 slide blocks. The durable aluminum guide rails feature precise hole diameter and distance, while the SBR slide blocks utilize ball bearings for smooth and unobstructed movement.
The linear bearing adopts an all-metal structure, and the slide block is tightly locked on the linear shaft, which has a high bearing capacity.
Aluminum SBR slide block and built-in ball bearings slide smoothly and move more effortlessly to ensure long-term stable operation.
The linear motion guides have accurate hole distance, hole diameter, and standard shaft diameter, allowing you to install your equipment more precisely.
Linear rail kit is widely used in high-load automation equipment and DIY equipment production. For example, DIY CNC engraving machines, lathes, etc.
Top reviews from the United States
D
Great linear rails for a great price
Reviewed in the United States on April 28, 2024
D
Reviewed in the United States on April 28, 2024
First of all, they're super heavy. I guess that should be expected. They have a nice coating of oil on them, which seems to get on everything like anti-seize does - nothing a little brake cleaner can't take care of. The rails are straight and have a nice polish, and they measure 20mm +0.1/-0.2. The ends aren't chamfered, which would have been preferable, but that's an easy fix. The pillow blocks seem well made, with recirculating ball type bearings in them. Putting the two together, the blocks slide nicely on the rails, though they're a bit loud. The dust seals on the blocks seem to be well-fitted and there's no discernible play in the bearings.
I need to cut these rails down, and I did so using an angle grinder with a cutoff wheel. I then polished and chamfered the ends with a 120 grit flap disc. Cutting took a couple of minutes per cut. You could probably do it with a hacksaw but it'll take you all afternoon. Out of curiosity, I tried drilling into a piece of the rail and I was able to drill without too much problem, so the rails aren't too terribly hard.
Overall, these are a great choice if you need a set of linear rails, pillow blocks, and mounting blocks. I'll be posting my build to Hackaday and thingivese, and I'll be recommending these rails to anyone looking to build their own microscope stand.
Images in this review
Randy
Worked well for home use.
Reviewed in the United States on June 6, 2024
Dave R
Works well with some extra work
Reviewed in the United States on June 22, 2024
Dave R
Reviewed in the United States on June 22, 2024
Images in this review
HARVEY BEVERLY
It was better than I thought it could be.
Reviewed in the United States on July 8, 2024
HARVEY BEVERLY
Reviewed in the United States on July 8, 2024
Images in this review
Angry consumer
Great customer service
Reviewed in the United States on November 28, 2023Darrell
Took Waaaaay too long to arrive!
Reviewed in the United States on April 25, 2024Scott
Linear rail
Reviewed in the United States on March 2, 2024Robert Northrup
Very stout linear rail with bearing blocks.
Reviewed in the United States on January 12, 2024