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Precision Shaft Connection for Your DIY Projects
The daier 4mm Flange Coupling Connector Set provides a robust solution for connecting motor shafts to driven components in DIY RC models and other small machinery. Constructed from high-quality 45# steel, these couplings offer superior durability and insulation compared to copper or aluminum alloys, ensuring a stable and reliable connection. The heat and electroplated process enhances sturdiness, making installation and replacement straightforward.
This set is widely used for model shaft connections, serving as perfect accessories for RC model motors. Each coupling features a 4mm inner diameter, a 12mm height, and uses M3 fastening screws for secure mounting. The package includes four 4mm flange couplings, one M3 mini hex wrench, and eight M3 fastening screws, providing everything needed for a complete installation.
For Indian makers and hobbyists, these rigid couplings offer a precise way to link shafts without introducing play, crucial for applications requiring accurate motion control. While local alternatives may exist, this imported set guarantees authentic materials and construction for demanding DIY projects. All customs duties and GST are included in the price, with delivery via ExpressBox.
Engineered for Precision DIY Projects
This daier 4mm flange coupling set is built for hobbyists and makers who demand reliability in their DIY RC models, boats, or custom machinery. The 45# steel construction provides exceptional durability and insulation, outperforming common copper or aluminum alloys. Its rigid design ensures precise shaft alignment, crucial for smooth operation and preventing motor wear. Imported directly, this set guarantees authentic materials and construction, offering a dependable solution for your intricate projects where accuracy is paramount.
Ideal for 4mm Shafts, Not for Flexible Needs
This coupling is perfect for users needing to connect 4mm motor shafts to other components in fixed, direct alignment for applications like RC cars, drones, or small DIY robots. It is not suitable for systems requiring any degree of shaft misalignment compensation, flexibility, or vibration dampening. If your project involves significant shaft angle differences or requires a flexible connection, consider alternative coupling types.
Typical situations where daier 4mm Flange Coupling Connector Set with Hex Wrench & Screws | 4 Pieces helps — illustrative scenarios, not customer reviews.
A hobbyist in Bangalore is building a custom drone and needs to connect a 4mm motor shaft to a propeller adapter.
This daier 4mm flange coupling provides a rigid, secure connection, ensuring the propeller spins true without wobble. The 45# steel construction offers durability for sustained flight, and the included M3 screws allow for a tight fit.
A maker in Delhi is creating a small robotic arm with a 4mm motor shaft for precise joint movement.
The rigid nature of this coupling ensures accurate transmission of motor rotation to the arm's mechanism, preventing backlash. The included hex wrench simplifies installation, allowing for quick assembly and testing of the robotic arm's movements.
| Application | DIY RC Model Motors, Shaft Connection, Robotics, Small Machinery |
| Shaft Size Compatibility | 4 mm |
| Screw Type | M3 Set Screw |
| Installation | Requires M3 Hex Wrench (included) |
| Cost per use | This is a durable part, not a consumable. Cost per installation is minimal, with ₹348 per piece for the set. |
| Feature | daier 4mm Flange | Others |
|---|---|---|
| Material & Durability | 45# Steel (Alloy Steel) with heat & electroplated finish. Superior sturdiness and insulation. | Often copper or aluminum alloys; may offer lower sturdiness and insulation. Quality varies by local brand. |
| Shaft Connection Type | Rigid flange coupling with M3 set screws for precise, fixed alignment. | May offer similar set screw or clamp styles; alignment precision can vary. |
| Included Accessories | 4 couplings, 1 M3 hex wrench, 8 M3 screws. | May or may not include a hex wrench or sufficient screws; check package contents. |
| Cost per Piece (Set of 4) | ₹348 per piece | Local sets may range from ₹200-₹500 for comparable 4mm bore sets, depending on material and brand. |
| Application Suitability | Ideal for DIY RC models, robotics, and light machinery requiring precise 4mm shaft connection. | Suitable for similar applications, but verify material grade and precision for critical DIY projects. |
| SKU | sdn6156 |
| Brand | daier |
| Model Number | H416*4 |
| Part Number | H416*4 |
| Material | 45# Steel (Alloy Steel) |
| Finish Type | Heat and Electroplated |
| Color | Silver |
| Inner Diameter | 4 mm (0.157 in) |
| Height | 12 mm (0.472 in) |
| Fixed Hole Screw Size | M3 |
| Number of Pieces | 4 Couplings |
| Included Accessories | 1x M3 Hex Wrench, 8x M3 Screws |
| Item Weight | 30 grams (1.06 oz) |
| Package Weight | 40 grams (0.09 lbs) |
| Item Dimensions (L x H x W) | 5 cm x 4 cm x 1.5 cm (1.97 in x 1.57 in x 0.59 in) |
| Package Dimensions (L x H x W) | 1.2 cm x 9.4 cm x 8 cm (0.47 in x 3.7 in x 3.15 in) |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About daier
daier specializes in model accessories and power transmission components, offering reliable parts for DIY enthusiasts and hobbyists.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
daier 4mm Flange Coupling Connector Set with Hex Wrench & Screws | 4 Pieces, 12mm Height, M3 Screws
1,390
This item
daier 4mm Flange Coupling Connector Set with Hex Wrench & Screws | 4 Pieces, 12mm Height, M3 Screws
1,390
Total price:
4,630
You save 3,730 (45%) Extra3 items selected
3 items
4,630You save 3,730 (45%) Extra
| Attributes | Current |  |  |  |  |  |  |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 1,390 2,790 | 1,390 2,790 | 1,850 2,780 | 1,760 2,940 | 830 970 | 3,520 5,420 | 1,720 2,750 |
| Rating | 4.50(911) | 4.50(912) | 4.63(8) | 4.50(910) | 4.13(8) | 4.50(1,036) | 4.70(294) |
| Brand Name | daier | daier | daier | daier | uxcell | Quartet | uxcell |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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