---
product_id: 807203598
title: "Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor"
brand: "heyiarbeit"
price: "€ 26.60"
currency: EUR
in_stock: true
category: "Heyiarbeit"
url: https://www.desertcart.hr/products/807203598-heyiarbeit-4mm-to-4mm-shaft-coupling-aluminium-flexible-plum-coupling
store_origin: HR
region: Croatia
---

# Super elastic torque absorption Aluminum alloy, wear-resistant 4mm to 4mm precision fit Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor

**Brand:** heyiarbeit
**Price:** € 26.60
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your machine’s performance with flexible precision coupling!

## Quick Answers

- **What is this?** Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor by heyiarbeit
- **How much does it cost?** € 26.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/807203598-heyiarbeit-4mm-to-4mm-shaft-coupling-aluminium-flexible-plum-coupling)

## Best For

- heyiarbeit enthusiasts

## Why This Product

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

## Key Features

- • **High Torque Capacity:** Handles demanding torque loads without loosening or failure
- • **Durable Aluminum Alloy:** High hardness and wear resistance ensure long-lasting performance
- • **Universal Compatibility:** Ideal for CNC machines, servo motors, stepper motors, and 3D printers
- • **Precision Engineered Fit:** Seamlessly connects 4mm shafts for flawless power transfer
- • **Vibration-Dampening Flexibility:** Absorbs motor stress to protect your CNC or 3D printer components

## Overview

The Heyiarbeit 4mm to 4mm Aluminum Flexible Plum Shaft Coupling is a polished, wear-resistant connector designed for CNC machines, 3D printers, and servo motors. Measuring 20mm in diameter and 30mm in length, it offers super elastic torque absorption to reduce vibration and stress, ensuring durable, high-torque transmission and reliable motor performance.

## Description

desertcart.com: Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor : Industrial & Scientific

## Features

- 【Size】-Shaft Usage: 4mm to 4mm / 0.16inch to 0.16inch; length: 30mm/1.18inch; Outer diameter: 20mm/0.79inch
- 【Material】-Aluminum alloy; Wear resistant ,high hardness and excellent response; Super elastic torque can absorb vibration, appropriate a large torque transmission;Type: Plum shaped
- 【Features】-Flexibility of coupling shaft removes stress between the motor and driving components.
- 【Advantages】-Super torque can absorb vibration, appropriate a large torque transmission; High hardness, Durable, and excellent response, not easy to loosen.
- 【Suitable for】-The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor,etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099MTB7TX |
| Best Sellers Rank | #1,121,895 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15,212 in 3D Printer Accessories |
| Brand | Heyiarbeit |
| Date First Available | July 16, 2021 |
| Exterior Finish | Aluminium |
| Fastener Type | Coupling |
| Finish Type | Polished |
| Manufacturer | Heyiarbeit |
| Material | Aluminum |
| Metal Type | Aluminum |
| Package Dimensions | 1.97 x 1.97 x 1.97 inches |
| Size | D20 x L30 |
| Thread Size | M 3 |

## Product Details

- **Exterior Finish:** Aluminium
- **Fastener Type:** Coupling
- **Material:** Aluminum
- **Metal Type:** Aluminum
- **Thread Size:** M 3

## Images

![Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor - Image 1](https://m.media-amazon.com/images/I/51JUZxU18zL.jpg)
![Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor - Image 2](https://m.media-amazon.com/images/I/61DE-FiKNQL.jpg)
![Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor - Image 3](https://m.media-amazon.com/images/I/51PxVJwG50L.jpg)
![Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor - Image 4](https://m.media-amazon.com/images/I/51MpXnZGRPL.jpg)
![Heyiarbeit 4mm to 4mm Shaft Coupling Aluminium Flexible Plum Coupling D25 L30 Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor - Image 5](https://m.media-amazon.com/images/I/61A+rsSmZ-L.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.hr/products/807203598-heyiarbeit-4mm-to-4mm-shaft-coupling-aluminium-flexible-plum-coupling](https://www.desertcart.hr/products/807203598-heyiarbeit-4mm-to-4mm-shaft-coupling-aluminium-flexible-plum-coupling)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-06*