<p>While it is technically not a rubber wheel, you can use an axle with a half-bush and with an additional rubber band to provide grip. Tensioning the band between two such axles will form a short conveyor belt with a rubbery surface, which could be used for transporting balls when surrounded by appropriate elements to form a channel:</p>

<p><a href="https://i.sstatic.net/PrtLE.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/PrtLE.png" alt="quick-and-dirty MS Paint sketch"></a></p>

<p>(the black lines are axles, the grey ovals are half-bushes, the red freehand-circle is a rubber band and the round spotty ugliness is supposed to be my rendition of a LEGO football)</p>

CC BY-SA 4.0
2018-12-19T13:44:31.350Z
2018-12-19T13:44:31.350Z
zovits
<p>I think the smallest one in diameter is the tire <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=3641&amp;idColor=11#T=P&amp;C=11" rel="noreferrer">3641</a> </p>

<p><a href="https://i.sstatic.net/8PiHx.png" rel="noreferrer"><img src="https://i.sstatic.net/8PiHx.png" alt="enter image description here"></a></p>

<p>with the bush <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=4265c&amp;idColor=9#T=P&amp;C=9" rel="noreferrer">4265c</a>.</p>

<p><a href="https://i.sstatic.net/1ceqS.png" rel="noreferrer"><img src="https://i.sstatic.net/1ceqS.png" alt="enter image description here"></a></p>

<p>Alternatively, you can use the tire <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=3139&amp;idColor=11#T=P&amp;C=11" rel="noreferrer">3139</a></p>

<p><a href="https://i.sstatic.net/N3gAo.png" rel="noreferrer"><img src="https://i.sstatic.net/N3gAo.png" alt="enter image description here"></a></p>

<p>which has a smooth surface and also compatible (but a little bit loosely) with the same bush.</p>

CC BY-SA 4.0
2018-10-29T14:02:41.393Z
2018-10-30T02:38:56.117Z
2018-10-30T02:38:56.117Z
BalazsToth
<p>What the smallest rubber wheels that can be turned by a Technic axle?</p>

<p>This is what I have so far</p>

<p><a href="https://i.sstatic.net/PS8rU.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/PS8rU.png" alt="enter image description here"></a></p>

<p><a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=4288#T=S&amp;C=11&amp;O" rel="nofollow noreferrer">Wheel Full Rubber Balloon with Axle hole #4288</a></p>

<p>Background: I'm building a GBC and I want to push the balls at speed across an open area. I plan to hide small spinning wheels in the opening they go through and assume that rubber tyres are the best solution.</p>

CC BY-SA 4.0
2018-10-29T02:04:10.917Z
There are some small tires that fit on half-bushings.
Alexander O'Mara
<technic><piece-information><wheel>
Smallest rubber wheel that can be turned by a technic axle
Craig
# Smallest rubber wheel that can be turned by a technic axle

(Asked by: username_0 on 2018-10-28)

What the smallest rubber wheels that can be turned by a Technic axle?

This is what I have so far

[![enter image description here](https://i.sstatic.net/PS8rU.png)](https://i.sstatic.net/PS8rU.png)

[Wheel Full Rubber Balloon with Axle hole #4288](https://www.bricklink.com/v2/catalog/catalogitem.page?P=4288#T=S&C=11&O)

Background: I'm building a GBC and I want to push the balls at speed across an open area. I plan to hide small spinning wheels in the opening they go through and assume that rubber tyres are the best solution.

**Tags:** technic, piece-information, wheel

> **Comments:**
> **username_1**: There are some small tires that fit on half-bushings.  

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## 2 answers

### Answer by username_3 on 2018-10-29. Score: 9 | Accepted answer

I think the smallest one in diameter is the tire [3641](https://www.bricklink.com/v2/catalog/catalogitem.page?P=3641&idColor=11#T=P&C=11)

[![enter image description here](https://i.sstatic.net/8PiHx.png)](https://i.sstatic.net/8PiHx.png)

with the bush [4265c](https://www.bricklink.com/v2/catalog/catalogitem.page?P=4265c&idColor=9#T=P&C=9).

[![enter image description here](https://i.sstatic.net/1ceqS.png)](https://i.sstatic.net/1ceqS.png)

Alternatively, you can use the tire [3139](https://www.bricklink.com/v2/catalog/catalogitem.page?P=3139&idColor=11#T=P&C=11)

[![enter image description here](https://i.sstatic.net/N3gAo.png)](https://i.sstatic.net/N3gAo.png)

which has a smooth surface and also compatible (but a little bit loosely) with the same bush.


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### Answer by username_2 on 2018-12-19. Score: 3

While it is technically not a rubber wheel, you can use an axle with a half-bush and with an additional rubber band to provide grip. Tensioning the band between two such axles will form a short conveyor belt with a rubbery surface, which could be used for transporting balls when surrounded by appropriate elements to form a channel:

[![quick-and-dirty MS Paint sketch](https://i.sstatic.net/PrtLE.png)](https://i.sstatic.net/PrtLE.png)

(the black lines are axles, the grey ovals are half-bushes, the red freehand-circle is a rubber band and the round spotty ugliness is supposed to be my rendition of a LEGO football)


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