---
product_id: 580207253
title: "(2PCS) OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine"
brand: "generic"
price: "¥2581"
currency: JPY
in_stock: true
reviews_count: 1
url: https://www.desertcart.jp/products/580207253-2pcs-octagonstar-flexible-couplings-5mm-to-8mm-nema-17-shaft
store_origin: JP
region: Japan
---

# Flexibility reduces stress 19mm x 25mm 5mm to 8mm compatibility (2PCS) OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine

**Brand:** generic
**Price:** ¥2581
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Precision and Flexibility!

## Quick Answers

- **What is this?** (2PCS) OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine by generic
- **How much does it cost?** ¥2581 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/580207253-2pcs-octagonstar-flexible-couplings-5mm-to-8mm-nema-17-shaft)

## Best For

- generic enthusiasts

## Why This Product

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

## Key Features

- • **Compact Dimensions:** Space-saving size of 19mm x 25mm fits effortlessly in tight setups.
- • **Durable Construction:** Built to withstand the rigors of continuous use in demanding environments.
- • **Seamless Compatibility:** Perfectly fits NEMA 17 stepper motors, ensuring a smooth operation.
- • **Versatile Applications:** Ideal for both RepRap 3D printers and small CNC machines.
- • **Stress-Free Performance:** Flexible design minimizes stress between motor and driving components.

## Overview

The (2PCS) OctagonStar Flexible Couplings are designed for NEMA 17 stepper motors, accommodating shaft diameters from 5mm to 8mm. With compact dimensions of 19mm x 25mm, these couplings provide essential flexibility to reduce stress between motor and driving components, making them perfect for RepRap 3D printers and small CNC machines.

## Description

(2PCS) OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine

## Features

- Dimensions: 19mm x 25mm.
- Flexibility of this coupler removes stress between motor and driving component.
- Compatible with NEMA 17 stepper motors (for 5mm to 8mm shaft diameter).
- Useful in RepRap 3D Printers and small CNC machines.

## Images

![(2PCS) OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine - Image 1](https://m.media-amazon.com/images/I/61Nw1pn3k2L.jpg)
![(2PCS) OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine - Image 2](https://m.media-amazon.com/images/I/51a13yR3klL.jpg)
![(2PCS) OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine - Image 3](https://m.media-amazon.com/images/I/51v6xsCSlzL.jpg)

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Not as specified
  

*by C***O on Reviewed in the United States on September 15, 2024*

After dissamembling the whole printer to install the coupling, I realized that the piece was not 5mm to 8mm as specified in the description but 8mm to 8mm. Waste of time and money

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**Shop now:** [https://www.desertcart.jp/products/580207253-2pcs-octagonstar-flexible-couplings-5mm-to-8mm-nema-17-shaft](https://www.desertcart.jp/products/580207253-2pcs-octagonstar-flexible-couplings-5mm-to-8mm-nema-17-shaft)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-14*