---
product_id: 340890210
title: "2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor"
brand: "befenybay"
price: "€ 29.08"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/340890210-2pcs-5mm-to-8mm-aluminium-plum-flexible-shaft-coupling-d20
store_origin: PT
region: Portugal
---

# Super Torque Flexible Coupling 5-8mm Diameter 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor

**Brand:** befenybay
**Price:** € 29.08
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Engineering Game!

## Quick Answers

- **What is this?** 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor by befenybay
- **How much does it cost?** € 29.08 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/340890210-2pcs-5mm-to-8mm-aluminium-plum-flexible-shaft-coupling-d20)

## Best For

- befenybay enthusiasts

## Why This Product

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

## Key Features

- • **Compact Design:** Space-saving dimensions (25 x 20 mm) fit seamlessly into your projects.
- • **Unmatched Durability:** Crafted from high-grade aluminum alloy for long-lasting performance.
- • **Vibration Absorption:** Engineered to absorb vibrations, ensuring smooth operation.
- • **Precision Engineering:** Designed for optimal torque transmission without loosening.
- • **Versatile Compatibility:** Perfect for CNC machines, servo motors, and stepper motors.

## Overview

The Befenybay 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling is a high-performance connector designed for 3D printers, CNC machines, and servo motors. With a compact size of 25 x 20 mm and made from durable aluminum alloy, it offers superior torque transmission and vibration absorption, ensuring reliable and efficient operation in various applications.

## Description

2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor

## Features

- Size: 25 x 20 mm (L x W); Diameter: 5 mm to 8 mm
- Material: aluminum alloy, polyurethane type: plum shape
- Super torque can absorb vibration, good torque transmission. High hardness, durable and excellent response, not easy to loosen
- Coupling shaft flexibility eliminates tension between motor and driving components
- Shaft couplers are mainly used for CNC machines, servo motors, shafts, stepper motors, etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | befenybay |
| Part number | BE011 |
| Item Weight | 30 g |
| Package Dimensions | 7.1 x 4.9 x 2.2 cm; 30 g |
| Item model number | BE011 |
| Size | D20 L25 |
| Style | 5-8 mm |
| Material | Aluminium |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Aluminum
- **Fastener Type:** Coupling
- **Exterior Finish:** Silver
- **Color:** Silver, Red
- **Metal Type:** Aluminum

## Images

![2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor - Image 1](https://m.media-amazon.com/images/I/71hM4JCrZ7L.jpg)

## Available Options

This product comes in different **Size Name, Style Name** options.

## Questions & Answers

**Q: How hard is to pull the two halves apart?**
A: You can separate the halves with your hands. They are friction fit together but not under any significant pressure. I use them for my two Z axis screws on my 3D printer (motors at bottom) which are always under pressure from the X carriage and they have never separated after 1000+/- prints.

**Q: these actually grip the lead screw right? because the stock spring style, my lead screw crawls up it inside, causing binding, due to poor QC thx**
A: I had problem with mine slipping, No amount of tightening that screw would cause it to hold fast. Resolved with a few drops of CA glue.

**Q: Wil this fix on a cr10s pro v2?**
A: Yes,it can be used for cr10s pro v2

**Q: Which size to get for CR10V3?**
A: It is 5mm to 8mm for cr10 v3

## Frequently Bought Together

- Befenybay 2PCS 5mm to 8mm Aluminium Plum Flexible Shaft Coupling D20 L25 Connector Flexible Coupler for CNC Machine and Servo Stepped Motor（5x8mm）
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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-16*