---
product_id: 609678440
title: "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"
brand: "vigorous"
price: "€ 42.56"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fi/products/609678440-2-pcs-8mm-x-500mm-0-315-x-19-69
store_origin: FI
region: Finland
---

# 8mm diameter precision ±0.1mm length tolerance HRC55-62 hardened steel 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

**Brand:** vigorous
**Price:** € 42.56
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your build with precision that moves you forward!

## Quick Answers

- **What is this?** 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 by vigorous
- **How much does it cost?** € 42.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/609678440-2-pcs-8mm-x-500mm-0-315-x-19-69)

## Best For

- vigorous enthusiasts

## Why This Product

- Trusted vigorous brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **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.

## Overview

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.

## Description

Full description not available

## Features

- What You Get: 2Pcs 8mm x 500mm Linear Motion Rod Pack
- Great Performance Material: 45# Carbon steel, Hardness about HRC55-62, Surface roughness about Ra0.05-08, Straightness≤0.1/1000mm, Chrome plated thickness about 0.01mm
- Tolerance: Diameter tolerance about -0.01to-0.03mm, Length tolerance about ± 0.1mm
- Humannized Design: Our linear motion guides are chamfered about C1.0--45°on both ends in order to ensure safety and easiness in assembling other parts on the rod shaft.
- Wide Application: Widely applied in CNC, 3D printer, automatic machinery, injection molding machine, engraving machine, etc. especially in bearing purpose.

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/51+cJosGlqL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/513XD7LxdyL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/51BocXZEiaL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/71JRBOmt4-L.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/61X+uz1EV9L.jpg)

## Available Options

This product comes in different **Size, Number of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High-quality linear bearing shaft
*by B***S on August 7, 2025*

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.

### ⭐⭐⭐⭐⭐ It's a strong stainless steel rod. Does what it say it do
*by N***O on March 18, 2025*

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.

### ⭐⭐⭐⭐⭐ Straight and true
*by M***G on July 28, 2025*

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.

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**Shop now:** [https://www.desertcart.fi/products/609678440-2-pcs-8mm-x-500mm-0-315-x-19-69](https://www.desertcart.fi/products/609678440-2-pcs-8mm-x-500mm-0-315-x-19-69)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-09*