---
product_id: 170180595
title: "uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs"
brand: "uxcell"
price: "70.16 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Uxcell"
url: https://www.desertcart.tn/products/170180595-uxcell-8mm-to-8mm-bore-rigid-coupling-set-screw-l22xd14
store_origin: TN
region: Tunisia
---

# 22mm total length compact 8mm bore precision fit Stainless steel durability uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs

**Brand:** uxcell
**Price:** 70.16 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in precision, power your projects with confidence!

## Quick Answers

- **What is this?** uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs by uxcell
- **How much does it cost?** 70.16 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/170180595-uxcell-8mm-to-8mm-bore-rigid-coupling-set-screw-l22xd14)

## Best For

- uxcell enthusiasts

## Why This Product

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

## Key Features

- • **Set Screw Security:** Dual M4 screws lock shafts firmly in place, delivering high rigidity and zero rotation gap.
- • **Compact 22mm Length:** Space-saving design perfect for tight motor and 3D printer assemblies.
- • **Precision 8mm Bore Fit:** Engineered for flawless shaft alignment, eliminating wobble and maximizing torque transfer.
- • **Versatile Compatibility:** Ideal for 3D printers, CNC machines, stepper motors, and DIY robotics—join the maker elite.
- • **Industrial-Grade Stainless Steel:** Corrosion-resistant alloy steel ensures long-lasting, maintenance-free performance.

## Overview

The uxcell 8mm to 8mm Rigid Shaft Coupling Set features a compact 22mm length and 14mm outer diameter, crafted from corrosion-resistant stainless steel. Designed for high torque and zero backlash, it securely connects shafts in 3D printers, CNC machines, and robotics with dual M4 set screws for a maintenance-free, durable fit.

## Description

Specification:8 pcs screws designThread Size: M4Color: Silver ToneMaterial: SteelConnection Diameter: 8mm to 8mmTotal Length: 22mm /0.87 inchOutside Diameter : 14mm/ 0.55 inchThrough Angle: 90 Degree Package List:2 Pcs x Rigid Shaft Coupler8 Pcs x M4 ScrewsDescription:Made from Steel material to reduce inertiaRigid coupling,high torque with rigidity,low inertia and excellent sensitivityNo rotation gap, elastic action can make up for symmetrical angular misalignmentMaintenance-free, oil proof and corrosion resistanceSuitable for model car, model boat, hardware, , mechanical drive situations etc Note:Please allow 1-3mm differs due to manual measurementDue to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding

Review: Works for 1/4 to 3/8 inch shaft - I figured that I would give this a shot to join a 1/4 to 3/8 inch shaft for a drill. 3/8 is about half a millimeter smaller than the 10mm spec but I managed to get it set just fine. After a few tests I noticed a slight wobble. This was quickly resolved with a thin shim to steady and center the 3/8 in shaft in the 10mm hole. Precision demands such things. Now I know how tolerances are important if you want a quality tool. I’m really happy with how it turned out. Good coupling sleeve for mating two odd shafts. If I need another one in the future, I wouldn’t hesitate to order more of the same. Highly recommended.
Review: Almost Perfect!! - Yep, I said "Almost". But it's my shortcomings not the product's shortcomings that make me say "almost". The set screws are really small and hard to see or insert. You have to put them in the right way or you cannot use an allen wrench to tighten them. In my younger days, before cataracts, I wouldn't have had any problem seeing these set screws. But today, it was difficult getting them screwed in and tightened. I would have liked the set screws to be locked into the holes so I only had to tighten them and couldn't take them out or lose them. I am building a linear stage which uses a 5/16" threaded rod and a 12VDC motor with a 4mm shaft. I needed to connect them together. I talked with employees at the big box hardware stores and department stores -- they had no idea what to use to make the connection. It wasn't until I realized that the motor manufacturer would probably have good ideas for how to make the connection that I found these connectors.

## Features

- Connection Diameter: 8mm to 8mm, Total Length: 22mm /0.87 inch, Outside Diameter : 14mm/ 0.55 inch
- Widely used in blowers,3D printer,DIY robots,CNC machine,stepper motors,etc. Similar to rigid clamp couplings, shaft couplers are used to hold bearings and sprockets tightly on the shaft, and are used in motor and gearbox assemblies.
- Top tight type rigid coupling with 2/4 screws to hold the shaft tightly; high torque with rigidity, low inertia and excellent sensitivity.
- NOTE: The rigid type basically does not allow eccentricity, and it must be fully adjusted during use.
- Single piece set screw clamp design makes it easy to set up the items on the shaft and control the holding capacity of the coupling.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07P5YZKY5 |
| Best Sellers Rank | #19,715 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Rigid Set Screw Couplings |
| Brand | uxcell |
| Color | Silver Tone |
| Compatible Groove Diameter | 8 Millimeters |
| Customer Reviews | 4.4 out of 5 stars 682 Reviews |
| Exterior Finish | Stainless Steel |
| Fastener Type | Coupling |
| Finish Types | Silver |
| Grade Rating | industrial |
| Inside Thread Size | M4 |
| Item Diameter | 8 Millimeters |
| Item Dimensions | 1.97 x 1.18 x 1.18 inches |
| Manufacturer | uxcell |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Metal Type | Alloy Steel, Stainless Steel |
| Number of Pieces | 10 |
| Outside Diameter | 14 Millimeters |
| Part Number | a18121800ux0657 |
| Set Name | Rigid Shaft Coupler Set (2 Pcs) with M4 Screws (8 Pcs) |
| Size Name | 8mm to 8mm |
| Thread Class | Class 2B |
| Thread Size | M 4 |
| Thread Style | Metric, Right Hand |
| Thread Type | Iso Metric |
| Unit Count | 2.0 Count |

## Product Details

- **Color:** Silver Tone
- **Exterior Finish:** Stainless Steel
- **Fastener Type:** Coupling
- **Material:** Alloy Steel
- **Thread Size:** M 4

## Images

![uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs - Image 1](https://m.media-amazon.com/images/I/61hKw4ng7oL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works for 1/4 to 3/8 inch shaft
*by W***E on June 22, 2024*

I figured that I would give this a shot to join a 1/4 to 3/8 inch shaft for a drill. 3/8 is about half a millimeter smaller than the 10mm spec but I managed to get it set just fine. After a few tests I noticed a slight wobble. This was quickly resolved with a thin shim to steady and center the 3/8 in shaft in the 10mm hole. Precision demands such things. Now I know how tolerances are important if you want a quality tool. I’m really happy with how it turned out. Good coupling sleeve for mating two odd shafts. If I need another one in the future, I wouldn’t hesitate to order more of the same. Highly recommended.

### ⭐⭐⭐⭐⭐ Almost Perfect!!
*by I***S on April 1, 2024*

Yep, I said "Almost". But it's my shortcomings not the product's shortcomings that make me say "almost". The set screws are really small and hard to see or insert. You have to put them in the right way or you cannot use an allen wrench to tighten them. In my younger days, before cataracts, I wouldn't have had any problem seeing these set screws. But today, it was difficult getting them screwed in and tightened. I would have liked the set screws to be locked into the holes so I only had to tighten them and couldn't take them out or lose them. I am building a linear stage which uses a 5/16" threaded rod and a 12VDC motor with a 4mm shaft. I needed to connect them together. I talked with employees at the big box hardware stores and department stores -- they had no idea what to use to make the connection. It wasn't until I realized that the motor manufacturer would probably have good ideas for how to make the connection that I found these connectors.

### ⭐⭐⭐⭐ Well made
*by C***D on January 28, 2026*

Seems well made and finished. Worked well for me.

## Frequently Bought Together

- uxcell 8mm to 8mm Bore Rigid Coupling Set Screw L22XD14 Stainless Steel,Shaft Coupler Connector for 3D Printers, Motor Accessories,2pcs
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-27*