---
product_id: 545353196
title: "Shaft Collar for SBR20 Linear Rail Stop, 20mm Bore 40mm OD 12mm Thickness Aluminum Alloy Anodized Clamp-On with M5 Set Screw, Locking Collars for CNC and Linear Motion Systems"
brand: "aoweital"
price: "€ 31.51"
currency: EUR
in_stock: true
reviews_count: 11
category: "Aoweital"
url: https://www.desertcart.pt/products/545353196-shaft-collar-for-sbr20-linear-rail-stop-20mm-bore-40mm
store_origin: PT
region: Portugal
---

# M5 set screw clamp 20mm precision bore Anodized corrosion resistance Shaft Collar for SBR20 Linear Rail Stop, 20mm Bore 40mm OD 12mm Thickness Aluminum Alloy Anodized Clamp-On with M5 Set Screw, Locking Collars for CNC and Linear Motion Systems

**Brand:** aoweital
**Price:** € 31.51
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in precision, unlock your machine’s potential!

## Quick Answers

- **What is this?** Shaft Collar for SBR20 Linear Rail Stop, 20mm Bore 40mm OD 12mm Thickness Aluminum Alloy Anodized Clamp-On with M5 Set Screw, Locking Collars for CNC and Linear Motion Systems by aoweital
- **How much does it cost?** € 31.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/545353196-shaft-collar-for-sbr20-linear-rail-stop-20mm-bore-40mm)

## Best For

- aoweital enthusiasts

## Why This Product

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

## Key Features

- • **Secure Clamp-On Design:** M5 set screw locks the collar firmly without damaging your shaft—no compromises.
- • **Effortless Installation:** Clamp-on style makes setup quick and hassle-free, perfect for DIY CNC projects.
- • **Robust Aluminum Alloy Build:** Lightweight yet durable anodized aluminum resists oxidation and wear for long-term reliability.
- • **Pack of Four for Versatility:** Multiple collars included to optimize your linear motion system or CNC build.
- • **Precision Fit, Zero Slippage:** Engineered for exact 20mm shaft engagement to ensure flawless positioning.

## Overview

This anodized aluminum shaft collar features a 20mm bore and 40mm outer diameter with 12mm thickness, designed for secure clamp-on positioning on SBR20 linear rails. Equipped with an M5 set screw, it ensures a damage-free, tight grip ideal for CNC and linear motion systems. Sold in packs of four, it combines durability, corrosion resistance, and easy installation to elevate your mechanical projects.

## Description

Shaft Collar for SBR20 Linear Rail Stop, 20mm Bore 40mm OD 12mm Thickness Aluminum Alloy Anodized Clamp-On with M5 Set Screw, Locking Collars for CNC and Linear Motion Systems: desertcart.com: Industrial & Scientific

Review: Very stable and well made. - Perfect fit on my linear rails. Very easy to install and works as designed. Love the product and price.
Review: Great product - Great product

## Features

- For shaft fixing and positioning, SBR linear guide stop for DIY CNC machine tools.
- Designed to fully engage with the shaft, easy to install.
- High quality aluminum alloy material, light weight, oxidation and corrosion resistant surface, sturdy and durable.
- The shaft can be clamped tightly by set screws and the shaft will not be damaged.
- Package: 4 clamping shaft collars

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.6 out of 5 stars 219 Reviews |

## Images

![Shaft Collar for SBR20 Linear Rail Stop, 20mm Bore 40mm OD 12mm Thickness Aluminum Alloy Anodized Clamp-On with M5 Set Screw, Locking Collars for CNC and Linear Motion Systems - Image 1](https://m.media-amazon.com/images/I/71eAYmzrOgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very stable and well made.
*by S***S on January 2, 2026*

Perfect fit on my linear rails. Very easy to install and works as designed. Love the product and price.

### ⭐⭐⭐⭐⭐ Great product
*by G***. on December 30, 2025*

Great product

### ⭐⭐⭐⭐⭐ Work great on my router sled rails
*by A***T on June 5, 2025*

These work great on my router sled for manual stops. My only criticism would be that when you tighten the screws they tend to make a divot in the rail bases, so micro adjustments after those divots are in place become more difficult. But this may be due to the softness of the rail base metal, not a failure of these stops.

## Frequently Bought Together

- Shaft Collar for SBR20 Linear Rail Stop, 20mm Bore 40mm OD 12mm Thickness Aluminum Alloy Anodized Clamp-On with M5 Set Screw, Locking Collars for CNC and Linear Motion Systems
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**Shop now:** [https://www.desertcart.pt/products/545353196-shaft-collar-for-sbr20-linear-rail-stop-20mm-bore-40mm](https://www.desertcart.pt/products/545353196-shaft-collar-for-sbr20-linear-rail-stop-20mm-bore-40mm)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-01*