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Get free shipping on all orders above ₹999, delivered across India.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
The Hex Coupling for Robot Smart Car Wheel is designed to securely connect motors with 4mm, 5mm, or 6mm shafts to wheels featuring a hexagonal hub. With a durable metal construction and precise machining, this coupling provides a reliable mechanical link between the motor shaft and the wheel, ensuring efficient power transfer and alignment.
Its 18mm length offers ample grip and support, making it ideal for DIY robotic vehicles, smart car kits, and custom chassis applications. The coupling is equipped with set screws to ensure a firm hold on the motor shaft.
Features of Hex Coupling:
Compatible with 4mm, 5mm, and 6mm motor shafts
18mm length provides a secure and stable connection
Designed for hex-type wheels used in robotic car platforms
Strong metal construction ensures durability and longevity
Easy installation with included grub/set screws
Ideal for smart cars, robots, and automation projects
Specifications of Hex Coupling:
Dimensions: 6x18mm
Shaft Compatibility: 4mm, 5mm, 6mm (selectable version)
Wheel Interface: Hexagonal slot for smart car wheels
Material: Metal (aluminum alloy or steel)
Fixing Method: Dual side grub screws
Package Includes:
1 × Hex Coupling for Robot Smart Car Wheel – 18mm
2 x Set Screws
1 x Allen key
At ROBODIUM™, we want you to be completely satisfied with your purchase. You may return most items within 7 days of delivery for a full refund or exchange.
Most items sold on ROBODIUM™ can be returned within the return window, including:
To be eligible for a return, items must be:
Note: Products damaged due to misuse, modification, static discharge, soldering, or improper handling may not be eligible for return.
We arrange the return pickup for you — hassle-free returns similar to major e-commerce platforms.
All products include a minimum 15-day warranty against manufacturing defects, unless otherwise specified on the product page.
Warranty does not cover misuse, soldering damage, modifications, physical damage, or incorrect electrical connections.
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