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- 2PCS 6mm to 8mm Bore Rigid Coupling Set Screw...
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Item #:
91197692
2PCS 6mm to 8mm Bore Rigid Coupling Set Screw L25XD14 Aluminum Alloy,Shaft Coupler Connector for 3D Printers, Motor Accessories
87% of respondents would recommend this to a friend
Item #:
91197692
TTD 95
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 1 item left in stock.
Order now and get it around Monday, September 07
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Achieve precise connections with our high torque, low inertia shaft couplers designed for versatile use in various applications!
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What Stands Out
High Durability
Crafted from premium aluminum alloy, these couplings ensure long-lasting performance and resistance against wear, making them ideal for demanding 3D printing and motor applications.
Versatile Compatibility
Designed to fit bore sizes of 6mm to 8mm, this coupling set seamlessly connects various motor shafts, enhancing flexibility for different 3D printer setups and motor accessories.
User-Friendly Design
The set screw mechanism allows for easy installation and secure fastening, minimizing downtime and ensuring reliable operation during 3D printing projects and other motor applications.
Product Details
| Fastener Type | Coupling |
| Thread Size | M 4 |
| Exterior Finish | Aluminum |
| Inside Thread Size | M 4 |
| Compatible Groove Diameter | 6 millimeters |
| Drive Style | External Hex |
| Grade Rating | Industrial |
| Size Name | 6mm to 8mm |
| Item Diameter | 6 millimeters |
| Number of Pieces | 2 |
| Brand | LULUQUEEN |
| Manufacturer | LULUQUEEN |
| Number Of Items | 2 |
| Part Number | L03-LV2PCS-6-8 |
| Material Type | Aluminum |
| Metal Type | Aluminum |
| Finish Types | Polished |
| Material | Aluminum |
| Item Weight | 0.5 lbs (230 grams) |
Who Should Buy?
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3D Printing Users
Ideal for hobbyists and professionals using 3D printers that require reliable motor coupling for accurate movement.
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DIY Electronics
Great for individuals working on custom electronics projects needing robust shaft connections and motor accessories.
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Robotics Enthusiasts
Perfect for hobbyists constructing robots that require strong joint connections between motor shafts and couplings.
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Heavy Machinery
Not suitable for industrial applications where high torque or heavy loads are involved; choose heavy-duty couplings instead.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the bore size compatibility of the 2PCS Rigid Coupling Set?
Answer: The 2PCS Rigid Coupling Set is specifically designed to accommodate bore sizes of 8mm to 10mm. This versatility allows it to be used with a variety of motors and 3D printers that require different shaft diameters. It ensures a secure and stable connection between components, preventing slippage and wear during operation, which is vital for maintaining precision in 3D printing or other mechanical assemblies. -
Question:
What materials are the rigid couplings made from and why is it important?
Answer: These rigid couplings are crafted from aluminum alloy, a material known for its strength, durability, and lightweight properties. This combination is essential for minimizing vibrations and enhancing the overall stability of mechanical assemblies, especially in 3D printers. The lightweight design also helps to reduce the load on motors, making it ideal for high-speed applications. -
Question:
What is a rigid coupling and when should it be used?
Answer: A rigid coupling is a device that connects two shafts together in a fixed position, allowing them to rotate together without any relative movement. It is ideally used when precise alignment of the shafts is required, such as in 3D printing, where misalignment can affect print quality. Rigid couplings are best suited for applications where the shafts are properly aligned and minimal flexibility is needed. -
Question:
How do I install the rigid couplings on my 3D printer?
Answer: Installing the rigid couplings is straightforward; start by loosening the set screws on the coupling. Align the coupling with the motor shaft and the driven shaft, ensuring both are inserted into the coupling deeply enough. Once positioned, tighten the set screws securely to ensure a strong connection. Proper installation is vital to avoid misalignment during printing, which could lead to quality issues. -
Question:
Can this coupling be used with other motor types besides those for 3D printers?
Answer: Yes, the 2PCS Rigid Coupling Set can be effectively used with various motor types beyond 3D printers, such as stepper motors and servo motors, which often require reliable connections. Its adaptability makes it an excellent choice for DIY projects, robotics, and other mechanical applications where precise power transmission is necessary, thereby enhancing overall performance. -
Question:
What is the length and diameter of this coupling set?
Answer: The nominal dimensions of the coupling set are 25mm in length and 14mm in diameter. These dimensions are specifically designed to ensure a snug fit for the shafts while maintaining a low profile. This compact design helps in reducing the overall footprint of your setup, which is particularly useful when space is limited in 3D printer builds or other machinery. -
Question:
Are there any specific maintenance tips for aluminum alloy couplings?
Answer: To ensure the longevity of aluminum alloy couplings, regular inspection is recommended to check for wear or loosening of set screws due to vibrations. Cleaning the outer surface and tightening screws periodically can prevent dirt buildup and ensure a firm grip. Maintaining the coupling in optimal condition is crucial for preserving the performance effectiveness and preventing potential breakdowns during operation. -
Question:
What advantages does a set screw provide in this coupling design?
Answer: Set screws in this coupling design facilitate a firm and adjustable connection between the shafts. They allow for precise adjustment and easy disassembly, making maintenance and replacement straightforward. The set screw mechanism effectively counters axial motion and provides stability, critical for applications like 3D printing where, even minor shifts can adversely affect print results. -
Question:
Where can I buy the 2PCS 8mm to 10mm Bore Rigid Coupling Set in Trinidad and Tobago?
Answer: You can purchase the 2PCS 8mm to 10mm Bore Rigid Coupling Set from Ubuy in Trinidad and Tobago. Ubuy offers a wide selection of mechanical and motor accessories, ensuring you can find the right components for your 3D printing or mechanical projects conveniently.
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Pros
- Durable aluminum construction
- Easy installation
- Perfect for 3D printers
- Provides strong connection
- Lightweight design
Cons
- Limited color options available.
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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TTD 95
Order now and get it around Monday, September 07
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 1 item left in stock.
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Features & Benefits
- Connect two shafts of different specifications effortlessly.
- Ideal for blowers, 3D printers, DIY robots, CNC machines, and stepper motors.
- Features a top tight type rigid coupling with screws for a secure hold.
- Designed for high torque and rigidity, ensuring low inertia and excellent sensitivity.
- Includes 2 couplings, a hex wrench, and fastening screws for a complete setup.
- Requires full adjustment to prevent eccentricity during use.
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