● 9 min readTop Products This Week: Probots Expert Lab Briefing: 08 Jun 2026
Workbench Vol. 30 🚀 The Project Trifecta: 3 Builds to Start Today We don’t just stock parts; we curate ecosystems. This week’s arrivals are desi
Read Article →| Bulk Pricing | ||
|---|---|---|
| QTY | Unit Price(Inlc. GST) | |
| 25+ | ₹146.02 ₹ 123.75 + 22.28 GST | |
| 50+ | ₹143.04 ₹ 121.22 + 21.82 GST | |
| 75+ | ₹140.06 ₹ 118.69 + 21.36 GST | |
| 100+ | ₹137.08 ₹ 116.17 + 20.91 GST | |
Industrial-grade precision flexible coupler used for building smooth transmission mechanisms. Used to extend servo and stepper motor shafts, connecting shaft to leadscrews, loads, gear assemblies, etc. Flexible movement allows for misalignment in assembly without transferring the stress to the motor or shaft.
Use these couplers to connect a 5mm Shaft to an 8mm Shaft. These couplers are made of machined aluminum and have a spiral cut that makes them slightly flexible so they can be fit to two shafts even if they are not perfectly co-linear and will help reduce binding effects. The way they're cut, they're a little springy in the X Y & Z linear axis but not in the rotational axis. That means that you won't get increased backlash - so they're suitable for precision CNC work.
This coupler will connect a 5mm diameter shaft to an 8mm diameter shaft. A perfect add-on for our stepper motors. Comes with two sets of double set-screws (two per side) for secure attachment. You'll need a 2mm allen wrench to tighten/loosen the set screws.
In the simplest of terms, a coupling’s purpose is to transfer rotational movement from one shaft to another. Reality is somewhat more complicated, though, as flexible shaft couplings have also to compensate for misalignment between two shafts. This ability must be balanced with the need to be pliable in the planes of misalignment while still having the torsional strength to carry out the coupling’s main function. This is known as the Compliance mechanism where compliance is the capacity for allowing relative displacement. Several factors should always be taken into consideration when looking to specify flexible shaft couplings. These are torsional stiffness, backlash, torque, life, and attachment system. All of these have a bearing on coupling selection.
Flexible couplings are usually used to transmit torque from one shaft to another when the two shafts are slightly misaligned. They can accommodate varying degrees of misalignment up to 1.5° and some parallel misalignment. They can also be used for vibration damping or noise reduction.
Specifications:
Package Includes:
1 x 5mm to 8mm Flexible Coupler for 3D Printer CNC Shaft Metal
Applications:
| Technical Details |
Dimensions |
|---|---|
| Coupler Type | Flexible |
| Mounting Type: | Shaft-Shaft |
| Shaft Bore Size-Side A (mm) | 5 |
| Shaft Bore Size-Side B (mm) | 8 |
Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We delivery electronics components and parts throughout India using standard couriers like Bluedart, Delhivery & India Post.
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Probots sells every Electronics Part for your next Project. You can order 10,000+ Electronic Parts Online - Arduino, Raspberry Pi, NodeMCU Development Boards, Sensors, Motors, Motor Drivers, SMPS, Plastic Enclosures etc in India directly on probots.co.in
We offer specialized services for Bulk, Wholesale & B2B Customers like discounted prices, additional shipping options, customised products, etc . Customer with large quantity & regular orders qualify for the specialised discounted rates.
We also offer dedicated sales team to assist you with the order process by providing sales quotations, PI, technical support for choosing products, etc.
Note: Business Orders are processed manually and usually take 1-3 days to process compared to placing the order directly on our website. Please plan your purchases accordingly.
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First-time buyers will appreciate the professional support and guidance provided by the staff, who are known for helping customers choose the right components for their technical projects. While the store offers excellent post-sale support and a wide range of stock, some reviewers suggest confirming delivery timelines and noting that prices may be higher than traditional local markets.
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