---
product_id: 169251670
title: "2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling Diameter 20mm Length 25mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（10x10mm）"
brand: "befenybay"
price: "KD 6.76"
currency: KWD
in_stock: true
reviews_count: 13
category: "Befenybay"
url: https://www.desertcart.com.kw/products/169251670-2pcs-10mm-to-10mm-aluminium-plum-flexible-shaft-coupling-diameter
store_origin: KW
region: Kuwait
---

# High Torque Aluminum Alloy 10mm Bore 2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling Diameter 20mm Length 25mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（10x10mm）

**Brand:** befenybay
**Price:** KD 6.76
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Engineering Game!

## Quick Answers

- **What is this?** 2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling Diameter 20mm Length 25mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（10x10mm） by befenybay
- **How much does it cost?** KD 6.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/169251670-2pcs-10mm-to-10mm-aluminium-plum-flexible-shaft-coupling-diameter)

## 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

- • **Robust Construction:** Crafted from high-grade aluminum alloy for durability and longevity in demanding applications.
- • **Precision Engineering:** Designed for a perfect fit with a 10mm bore diameter, ensuring optimal performance in CNC machines and servo motors.
- • **Stress-Free Operation:** Eliminates stress between motor and components, enhancing the reliability of your machinery.
- • **Unmatched Flexibility:** Experience seamless operation with our plum-shaped design that absorbs vibrations effortlessly.
- • **High Torque Transmission:** Engineered to handle significant torque, making it ideal for high-performance setups.

## Overview

The 2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling is a high-performance connector designed for 3D printers, CNC machines, and servo motors. With a diameter of 20mm and a length of 25mm, this coupling features a robust aluminum alloy construction that ensures durability and high torque transmission while effectively absorbing vibrations to maintain smooth operation.

## Description

PLEASE NOTE: The shaft coupler is not elastic, can not modify the concentricity.Shaft must be located in a straight line. If your equipment is eccentric already, then it will make noise and cause off-centering. Please be cautious before your final purchasing, thank you. Product Name: Shaft Plum Coupling Type: Plum Shaped Shaft Usage: 10mm to 10mm / 0.39inch to 0.39inch Size: :L25mm x D20mm/0.98inch x 0.79inch( L*D) Material: Aluminum Alloy,Polyurethane Main Color: Silver Tone,Red Weight: 30g The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc Package Content: 2 x Shaft Plum coupling 1x Allen Key

Review: These are awesome! Much better than competitor's design. - For some reason the flexible couplers milled from a single piece of aluminum tend to shear on my DIY CNC machine on both the X and Y axis. I've tried different brands and suppliers, including the one in the photo, with the very same results. Within 6 hours of run time it breaks on the simplest of carves, ruining my workpiece. As you can see in the photo and the pictured break, one has to question the mill stock used vs. who mills these from that stock. However, since changing to this 3 piece design, I've been running fine without any issues or mid-carve failures!!! Thanks!
Review: Helps with misalignment and prevent disasters. - I bought these couplers to replace the horrendous ones that came with the Biqu B1SE, as well as on an Ender 3 I had (which to be honest didn't need replacing, but I had a two pack so I threw it on). This style of coupler provides a couple of advantages: -The set screw clamps the coupler around the leadscrew, rather than screws directly into the leadscrew. The stock B1SE coupler has a pair of setscrews that go directly into the leadscrew, and not only did this mean that you can never properly center the leadscrew (because you had to clamp setscrews into it from both sides), but that it also came loose quite often. Nevermind the fact that it can damage the leadscrew itself. The Befenybay couplers required only tightening one set screw and that was it- no fuss and never came loose again. This alone fixed a major pain point of that printer. -The design compensates for minor misalignment. If your leadscrew is extremely bent this probably won't fix any Z-problems you have, but for minor misalignments they can and do work very well. Again, the B1SE has a very long leadscrew which has a very slight offset between the gantry and stepper; this is incredibly obvious because the leadscrew is not parallel to the vertical extrusions and wobble around a lot despite efforts squaring the frame and moving things around to get them perfectly aligned. Installing this coupler, that leadscrew is now parallel and does not show the same level of wobble as before. Printing a test cylindrical tube also shows no z-banding. -It provides an extra level of protection. If something causes your Z-axis to jam or otherwise smash into the bed, the two halves of this coupler actually separates completely allowing the stepper to free spin. In my case, I forgot to remove a tool I used to lock the z-axis into place during maintenance, and the separation of the coupler avoided any additional stress I would have placed on the printer components. I see some comments about this coupler separating prematurely during normal printing, but I hadn't experienced that problem. I can see that if coupler tolerances are bad, this can happen, but also you should be checking to make sure that your gantry is able to move up and down freely (remove the leadscrew and just move it up and down with your arms). Overall, this is a minor improvement over traditional coupler designs. I would not necessarily buy these simply for the sake of an upgrade (as I said, the stock Ender 3 coupler works ok); but if you were already looking to replace couplers for any reason, I think these are a no-brainer to get.

## Features

- Size:L25mm x D20mm/0.98inch x 0.79inch( L*D) Bore Diameter: 10mm to 10mm / 0.39inch to 0.39inch
- Material: Aluminum alloy Type: Plum shaped
- Super torque can absorb vibration, appropriate a large torque transmission.High hardness,and excellent response,not easy to loosen
- Flexibility of coupling shaft removes stress between the motor and driving components
- The shaft couplers are mainly used for CNC machines,servo motors, spindle, step motor etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TF63R4C |
| Best Sellers Rank | #87,845 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,495 in 3D Printer Accessories |
| Brand | Befenybay |
| Color | Red,Silver |
| Compatible Groove Diameter | 0.39 Inches |
| Customer Reviews | 4.3 out of 5 stars 701 Reviews |
| Exterior Finish | Silver |
| Fastener Type | Coupling |
| Finish Type | Polished |
| Finish Types | Polished |
| Grade Rating | industrial |
| Inside Thread Size | 10mm or 0.39inch |
| Item Diameter | 10 Millimeters |
| Item Dimensions | 1.18 x 0.98 x 0.98 inches |
| Item Weight | 45 Grams |
| Manufacturer | befenybay |
| Material | Aluminum |
| Material Type | Aluminum |
| Metal Type | Aluminum |
| Model | BE-032-3-fba |
| Number Of Items | 2 |
| Number of Pieces | 2 |
| Part Number | BE-032-3-fba |
| Screw Head Style | Plum |
| Set Name | 2-pack |
| Size Name | D20 L25 |
| Thread Class | Class 2A |
| Thread Coverage | Unthreaded |
| Thread Style | Internal |
| UPC | 824007403868 |

## Images

![2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling Diameter 20mm Length 25mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（10x10mm） - Image 1](https://m.media-amazon.com/images/I/61Re9V1zsyL.jpg)
![2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling Diameter 20mm Length 25mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（10x10mm） - Image 2](https://m.media-amazon.com/images/I/61eLkOVh7tL.jpg)
![2PCS 10mm to 10mm Aluminium Plum Flexible Shaft Coupling Diameter 20mm Length 25mm Connector Flexible Coupler for 3D Printer CNC Machine and Servo Stepped Motor（10x10mm） - Image 3](https://m.media-amazon.com/images/I/51L3KrkgwTL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ These are awesome! Much better than competitor's design.
*by M***R on October 14, 2020*

For some reason the flexible couplers milled from a single piece of aluminum tend to shear on my DIY CNC machine on both the X and Y axis. I've tried different brands and suppliers, including the one in the photo, with the very same results. Within 6 hours of run time it breaks on the simplest of carves, ruining my workpiece. As you can see in the photo and the pictured break, one has to question the mill stock used vs. who mills these from that stock. However, since changing to this 3 piece design, I've been running fine without any issues or mid-carve failures!!! Thanks!

### ⭐⭐⭐⭐⭐ Helps with misalignment and prevent disasters.
*by C***G on February 7, 2024*

I bought these couplers to replace the horrendous ones that came with the Biqu B1SE, as well as on an Ender 3 I had (which to be honest didn't need replacing, but I had a two pack so I threw it on). This style of coupler provides a couple of advantages: -The set screw clamps the coupler around the leadscrew, rather than screws directly into the leadscrew. The stock B1SE coupler has a pair of setscrews that go directly into the leadscrew, and not only did this mean that you can never properly center the leadscrew (because you had to clamp setscrews into it from both sides), but that it also came loose quite often. Nevermind the fact that it can damage the leadscrew itself. The Befenybay couplers required only tightening one set screw and that was it- no fuss and never came loose again. This alone fixed a major pain point of that printer. -The design compensates for minor misalignment. If your leadscrew is extremely bent this probably won't fix any Z-problems you have, but for minor misalignments they can and do work very well. Again, the B1SE has a very long leadscrew which has a very slight offset between the gantry and stepper; this is incredibly obvious because the leadscrew is not parallel to the vertical extrusions and wobble around a lot despite efforts squaring the frame and moving things around to get them perfectly aligned. Installing this coupler, that leadscrew is now parallel and does not show the same level of wobble as before. Printing a test cylindrical tube also shows no z-banding. -It provides an extra level of protection. If something causes your Z-axis to jam or otherwise smash into the bed, the two halves of this coupler actually separates completely allowing the stepper to free spin. In my case, I forgot to remove a tool I used to lock the z-axis into place during maintenance, and the separation of the coupler avoided any additional stress I would have placed on the printer components. I see some comments about this coupler separating prematurely during normal printing, but I hadn't experienced that problem. I can see that if coupler tolerances are bad, this can happen, but also you should be checking to make sure that your gantry is able to move up and down freely (remove the leadscrew and just move it up and down with your arms). Overall, this is a minor improvement over traditional coupler designs. I would not necessarily buy these simply for the sake of an upgrade (as I said, the stock Ender 3 coupler works ok); but if you were already looking to replace couplers for any reason, I think these are a no-brainer to get.

### ⭐⭐⭐⭐⭐ So far so good
*by P***G on April 2, 2022*

They seem to work. Hard to test it. You have to take the Z rods out all the way to get it to go in. But that's a good time to clean them. The fitting is very loose at first and the screws are very hard to turn. I thought I was going to strip it. Then finally it turned and tightened. I thought I had the wrong size at first.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.kw/products/169251670-2pcs-10mm-to-10mm-aluminium-plum-flexible-shaft-coupling-diameter](https://www.desertcart.com.kw/products/169251670-2pcs-10mm-to-10mm-aluminium-plum-flexible-shaft-coupling-diameter)

---

*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-21*