2 PCS 8mm x 500mm (0.315 x 19.69 inches) Vigorous Linear Motion Rods, Case Hardened Chrome Shaft Linear Rail Rod Shaft for 3D Printer, DIY, CNC - Metric h8 Tolerance
Description
⚙️ Elevate your build with precision that moves you forward!
- FLAWLESS FINISH - Chrome plating with 0.01mm thickness and Ra0.05-0.08 surface roughness for smooth, corrosion-resistant operation.
- PRECISION PERFECTED - Metric h8 tolerance ensures ultra-smooth linear motion for flawless CNC and 3D printing results.
- VERSATILE POWERHOUSE - Ideal for CNC, 3D printers, injection molding, and engraving machines—upgrade your DIY projects effortlessly.
- ROCK SOLID DURABILITY - Case hardened 45# carbon steel with HRC55-62 hardness for long-lasting, wear-resistant performance.
- SAFETY MEETS SIMPLICITY - Chamfered ends (C1.0--45°) for easy, safe assembly—no more fumbling or damage during installation.
This 2-piece set of 8mm x 500mm linear motion rods features case-hardened 45# carbon steel with a hardness rating of HRC55-62, chrome plating for corrosion resistance, and tight metric h8 tolerances for exceptional straightness and smoothness. Designed with chamfered ends for safe, easy assembly, these rods are perfect for enhancing the performance and durability of CNC machines, 3D printers, and other precision DIY projects.
Reviews
B**S
High-quality linear bearing shaft
This shaft is incredibly good value when compared with other linear guide shafts available from industrial supply houses like McMaster. The diameter is within the h8 tolerance, just as stated. The shaft is case-hardened and can be cut with carbide parting tools. The shaft center is soft and can be drilled and tapped with conventional HSS tools.
N**O
It's a strong stainless steel rod. Does what it say it do
Super sturdy. Can easily support my full body weight without permanently deforming. I have this rotating in a set of two bearings about 2.5 feet apart, and it's critical that the axel stay very straight, and this rod has done awesome.Hard enough that the set screws don't chowder the surface when they are locked in place, but not so hard that the set screws just slide over the surface.
M**G
Straight and true
Showed up packaged well, straight, and good tolerance/accuracy. Bearings/gears/pulleys slipped right on. Do need a cutoff wheel to cut to length, my portaband cried.
W**N
Solid
True to dimensions and do the job.
P**L
Quality!
Exactly as described. Quality steel!
M**R
Cetme jig bar
This bar is the right diameter to bend a cetme flat around and buying it though amazon was the cheapest option. It didn't flex in the press, just worked out great.
T**S
Clean and quality pair of rods. Great for holding filament.
Used for holding 5 rolls of filament on a prusa enclosure. No issues for quality and looks fine.
D**K
Works fine for a 6lb rock tumbler.
Good price for metal rods. Used to make a rock tumbler.
Common Questions
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