The Robot Wheel 70mm x 40mm for DC Gear Motor is a plastic and rubber robot car wheel with 70mm outer diameter, 40mm width, and 6mm shaft bore, designed for standard DC gear motor chassis builds requiring maximum traction contact patch. This robotics wheel is the widest standard robot wheel the 40mm tyre width exceeds the 38mm of the ATV wheel and the 25mm of the 65mm BO motor wheel, giving this wheel the largest rolling contact surface per wheel of any non-mecanum wheel in the range.
These 70mm dc gear wheels’ 6mm shaft bore fits standard DC gear motor output shafts — the same bore size as the 50mm black and white robot wheel covered separately, making this wheel a direct substitute for builders who want the same motor compatibility with a larger and wider wheel for higher ground clearance and more traction. The Robot Wheel 70mm x 40mm’s plastic and rubber construction follows the same dual-material approach as the 50mm and 65mm variants: the plastic body transmits torque from the shaft while the rubber tyre provides grip on the rolling surface.
The wider 40mm rubber contact patch of this 70mm robot wheel distributes the chassis weight across a greater floor area per wheel than narrower options, improving traction on smooth surfaces and reducing the tendency to slip under motor acceleration. Explore quality robotics components at StemVolt.
Related Products:
- Checkout Robot Wheel 70mm x 13mm
Features:
- 6mm bore fits standard DC gear motor output shafts directly
- 70mm diameter gives good ground clearance for robot chassis builds
- Plastic hub and rubber tyre for torque transfer and floor grip
- Largest contact patch of any non-mecanum wheel in the range
Technical Specifications:
| Specification | Details |
|---|---|
| Material | Plastic and Rubber |
| Diameter | 70mm |
| Width | 40mm |
| Shaft Bore | 6mm |
| Compatible Motor | DC Gear Motor |
Applications:
- Robotics wheel used for maximum traction DC gear motor chassis build
- Robotics uses 70mm dc gear wheels for wider grip robot car
- Maker uses robot wheel for 6mm gear motor wide chassis
- College project uses wide robot wheel for contact patch experiment
Package Includes:
- 1 × Robot Wheel 70 mm×40 mm for DC Gear Motor














Ranveer Singh Jhala –
It worked exceptionally well with my DC gear motor setup. Its wider profile provided better grip and stability, making it ideal for DIY robotics and mobile robot platforms.
Suryaveer Suman –
Purchased for a robotics project and the quality was outstanding. Responsive support and secure packaging added to the positive experience.
Vishwanathan Iyer –
Authentic product received
Gurpreet Singh Bhullar –
Speedy dispatch service
Nimish Khandelwal –
Impressed with the quality
Zeeshan Ali –
Protective packing ensured safety
Saptarshi Dasgupta –
Easy checkout process