---
product_id: 167748349
title: "POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer"
brand: "polisi3d"
price: "€ 20.71"
currency: EUR
in_stock: true
reviews_count: 13
category: "Polisi3 D"
url: https://www.desertcart.gr/products/167748349-polisi3d-2pcs-5mm-to-8mm-shaft-coupling-25mm-l-20mm
store_origin: GR
region: Greece
---

# Durable 25mm length aluminum build Compatible with top 3D printers Precision 5mm to 8mm shaft fit POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer

**Brand:** polisi3d
**Price:** € 20.71
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your 3D printing game with precision and power!

## Quick Answers

- **What is this?** POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer by polisi3d
- **How much does it cost?** € 20.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/167748349-polisi3d-2pcs-5mm-to-8mm-shaft-coupling-25mm-l-20mm)

## Best For

- polisi3d enthusiasts

## Why This Product

- Trusted polisi3d brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Zero Slip Guarantee:** Say goodbye to print errors with a secure, tight fit that outperforms 3D printed alternatives.
- • **Dual Pack Convenience:** Two couplers included so you can upgrade multiple axes or share with your maker community.
- • **Seamless Shaft Transition:** Effortlessly connect 5mm motor shafts to 8mm leadscrews for flawless motion.
- • **Premium Aluminum Durability:** Robust 25mm long coupler ensures long-lasting, slip-free performance under heavy use.
- • **Universal Printer Compatibility:** Perfectly engineered for CR-10, Ender 3 V2 Pro, A8, and more—upgrade your setup instantly.

## Overview

The POLISI3D 2pcs 5mm to 8mm Shaft Coupling set features high-quality aluminum couplers measuring 25mm in length and 20mm in outer diameter. Designed for seamless compatibility with popular 3D printers like CR-10, Ender 3 V2 Pro, and A8, these flexible couplers ensure a secure, slip-free connection between motor shafts and leadscrews, enhancing print accuracy and reliability.

## Description

Can be used for the below printers: U10, CR-10 (All sizes), CR-10S (All sizes), CR-20, Ender 2/3/4/5, A8, A6, E10, E12, Size：L = 25mm; D = 20mm; d1 = 5mm; d2 = 8mm

Review: Fit good - I got these for my Ender 3 Pro which I upgraded to have a dual Z axis. They work good and I have not had any problems with them.
Review: Fantastic coupler - This replaced a 3d printed coupler that could never be tightened enough. With this there is no more slip.

## Features

- Can be used with printers that have 8mm Leadscrew and 5mm Motor Shaft
- Package: 2pieces coupler
- Good quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YYBQHVX |
| Additional Printer Functions | Print Only |
| B&W Pages per Minute | 1 pages_per_minute |
| Best Sellers Rank | #175,717 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,898 in 3D Printer Accessories |
| Brand | POLISI3D |
| Built-In Media | 2 Flexible Couplers |
| Color | Black |
| Color Pages per Minute | 1 pages_per_minute |
| Compatible Devices | PC |
| Connectivity Technology | USB |
| Control Method | Remote |
| Customer Reviews | 3.9 out of 5 stars 180 Reviews |
| Duplex | Simplex |
| Hardware Interface | USB |
| Ink Color | Black |
| Item Weight | 1.06 ounces |
| Manufacturer | POLISI3D |
| Maximum Copy Speed Black and White | 1 pages_per_minute |
| Model Name | P-1065 |
| Model Number | 5x8 |
| Model Series | 1065 |
| Other Special Features of the Product | Portable |
| Print media | Paper (plain) |
| Printer Connectivity Type | USB |
| Printer Output Type | Monochrome |
| Printer Type | Thermal |
| Printing Technology | Thermal |
| Series Number | 1065 |
| Special Feature | Portable |
| Specific Uses For Product | 3D printer accessories for CR10, CR-10S, Ender 3 V2 Pro /5, A8, etc. |
| Total Usb Ports | 1 |
| UPC | 791300410049 |

## Product Details

- **Brand:** POLISI3D
- **Connectivity Technology:** USB
- **Printing Technology:** Thermal
- **Model Name:** P-1065
- **Printer Output:** Monochrome
- **Maximum Print Speed (Color):** 1 ppm
- **Max Printspeed Monochrome:** 1 ppm
- **Item Weight:** 1.06 Ounces
- **Included Components:** 2 Flexible Couplers
- **Print media:** Paper (plain)

## Images

![POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer - Image 1](https://m.media-amazon.com/images/I/31vgJ2Z0scL.jpg)
![POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer - Image 2](https://m.media-amazon.com/images/I/31c046tqDXL.jpg)
![POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer - Image 3](https://m.media-amazon.com/images/I/31WmbbD2D1L.jpg)
![POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer - Image 4](https://m.media-amazon.com/images/I/31-rRlzgLNL.jpg)
![POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer - Image 5](https://m.media-amazon.com/images/I/31SLe4N6ROL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fit good
*by M***D on April 7, 2022*

I got these for my Ender 3 Pro which I upgraded to have a dual Z axis. They work good and I have not had any problems with them.

### ⭐⭐⭐⭐⭐ Fantastic coupler
*by M***R on February 5, 2021*

This replaced a 3d printed coupler that could never be tightened enough. With this there is no more slip.

### ⭐ Poor quality and out of spec.
*by A***R on February 22, 2021*

These couplers are of a very poor quality. The first coupler I used cracked when tightening the screw on the 8mm side. The second coupler took an to much torques to be able to adequately grab either the 5mm or 8mm side. Luckily these were cheap and I'm not wasting time sending these back and just ended up in the trash. I would highly recommend looking elsewhere for couplers.

## Frequently Bought Together

- POLISI3D 2pcs 5mm to 8mm Shaft Coupling 25mm L 20mm OD Aluminum Joint Connector Stepper Motor Leadscrew Flexible Coupler for CR10 CR-10 CR-10S Ender 3 V2 Pro /5, A8 3D Printer
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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-17*