Answers.Body: <p>There are some variants registered on bricklink, but judging by the name and the presence of the brick in the middle, I guess the closest is:
  <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=715ac02&amp;name=Wheel%20with%2012%20Studs%20and%20Axle%20Cam%20with%20Light%20Gray%20Tire%20Smooth%20-%20Large%20(715a%20/%2036)&amp;category=%5BWheel%20&amp;%20Tire%20Assembly%5D#T=C" rel="noreferrer">Wheel with 12 Studs and Axle Cam with Light Gray Tire Smooth - Large (715a / 36)</a></p>
  
  <p>The small version you mention is probably:
  <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=7039bc02&amp;name=Wheel%20with%204%20Studs%20and%20Axle%20Cam%20with%20Light%20Gray%20Tire%20Smooth%20-%20Small%20(7039b%20/%20132-old)&amp;category=%5BWheel%20&amp;%20Tire%20Assembly%5D#T=C" rel="noreferrer">Wheel with 4 Studs and Axle Cam with Light Gray Tire Smooth - Small (7039b / 132-old)</a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-06T13:32:46.093Z
Answers.Text: The wheels can be removed from the brick
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-07T07:47:57.877Z
Answers.Text: That was mostly why I went with a variant with the axle.
Answers.UserDisplayName: Henrik supports the community
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-07T10:52:44.877Z
Answers.Text: Thank you! @Henriksupportsthecommunity
Answers.UserDisplayName: Kurbo Matematikon
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-06T07:45:47.587Z
Answers.LastActivityDate: 2020-06-06T07:57:12.283Z
Answers.LastEditDate: 2020-06-06T07:57:12.283Z
Answers.UserDisplayName: Henrik supports the community
Answers.Body: <p>Henrik covered wheels, so I'll just mention the brick used to attach these - <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=7049b#T=C" rel="nofollow noreferrer">Brick, Modified 2 x 4 with Wheels Holder, Trans-Clear Bottom</a></p>
  
  <p><a href="https://i.sstatic.net/S3G7l.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/S3G7l.png" alt="enter image description here"></a></p>
  
  <p>As noted on Bricklink there could be some variations of this brick:</p>
  
  <blockquote>
    <p>Several versions of this brick exist. Bush colors have been reported as red, black, milky white, and mixed colors, as well as a version missing the middle bush.</p>
  </blockquote>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-06T08:19:31.343Z
Answers.LastActivityDate: 2020-06-06T08:19:31.343Z
Answers.UserDisplayName: Alex
Body: <p>What is this old wheel brick? Wheels are also available in about the half size. They have metal axles.</p>
  
  <p><a href="https://i.sstatic.net/N6AeO.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/N6AeO.png" alt="Example Photo"></a></p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-06-06T17:00:33.710Z
Comments.Text: The question seems to be more about the wheels than the center brick.  I'm guessing that Kurbo assumed it was one part, and not an assembly.
Comments.UserDisplayName: chicks
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-06-06T17:19:34.027Z
Comments.Text: @chicks I disagree, because how are you supposed to know if the wheels have metal axles without taking them apart? Still, I admit that this is not exactly a duplicate. But this question has already been smashed 2 times with a dupe-hammer anyways.
Comments.UserDisplayName: mindstormsboi
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-06-07T10:49:13.180Z
Comments.Text: I did assume that they were always bundled together - I didn't think that they would have separate part numbers.
Comments.UserDisplayName: Kurbo Matematikon
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-02-14T14:30:10.853Z
Comments.Text: Yes, it is. Early 1960's a British consortium with new Lego parts, 2 size of wheels, turn-table & towbar. The axle bricks contains Nylon tubes, these hold wheel axle & as  not fixed can turn. 1st have red underside,  then came with   clear there, see red tube across & black at ends.
Comments.UserDisplayName: Andrew Hodson
Tags: <part-identification>
Title: What is this old wheel brick?
UserDisplayName: Kurbo Matematikon
ThreadText: # What is this old wheel brick?
  
  (Asked by: username_0 on 2020-06-06)
  
  What is this old wheel brick? Wheels are also available in about the half size. They have metal axles.
  
  [![Example Photo](https://i.sstatic.net/N6AeO.png)](https://i.sstatic.net/N6AeO.png)
  
  **Tags:** part-identification
  
  > **Comments:**
  > **username_1**: The question seems to be more about the wheels than the center brick.  I'm guessing that username_0 assumed it was one part, and not an assembly.  
  > **username_2**: @username_1 I disagree, because how are you supposed to know if the wheels have metal axles without taking them apart? Still, I admit that this is not exactly a duplicate. But this question has already been smashed 2 times with a dupe-hammer anyways.  
  > **username_0**: I did assume that they were always bundled together - I didn't think that they would have separate part numbers.  
  > **username_3**: Yes, it is. Early 1960's a British consortium with new Lego parts, 2 size of wheels, turn-table & towbar. The axle bricks contains Nylon tubes, these hold wheel axle & as  not fixed can turn. 1st have red underside,  then came with   clear there, see red tube across & black at ends.  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_4 on 2020-06-06. Score: 6 | Accepted answer
  
  There are some variants registered on bricklink, but judging by the name and the presence of the brick in the middle, I guess the closest is:
  [Wheel with 12 Studs and Axle Cam with Light Gray Tire Smooth - Large (715a / 36)](https://www.bricklink.com/v2/catalog/catalogitem.page?P=715ac02&name=Wheel%20with%2012%20Studs%20and%20Axle%20Cam%20with%20Light%20Gray%20Tire%20Smooth%20-%20Large%20(715a%20/%2036)&category=%5BWheel%20&%20Tire%20Assembly%5D#T=C)
  
  The small version you mention is probably:
  [Wheel with 4 Studs and Axle Cam with Light Gray Tire Smooth - Small (7039b / 132-old)](https://www.bricklink.com/v2/catalog/catalogitem.page?P=7039bc02&name=Wheel%20with%204%20Studs%20and%20Axle%20Cam%20with%20Light%20Gray%20Tire%20Smooth%20-%20Small%20(7039b%20/%20132-old)&category=%5BWheel%20&%20Tire%20Assembly%5D#T=C)
  
  > **Comments:**
  > **username_2**: The wheels can be removed from the brick  
  > **username_4**: That was mostly why I went with a variant with the axle.  
  > **username_0**: Thank you! @username_4  
  
  ---
  
  ### Answer by username_5 on 2020-06-06. Score: 3
  
  username_4 covered wheels, so I'll just mention the brick used to attach these - [Brick, Modified 2 x 4 with Wheels Holder, Trans-Clear Bottom](https://www.bricklink.com/v2/catalog/catalogitem.page?P=7049b#T=C)
  
  [![enter image description here](https://i.sstatic.net/S3G7l.png)](https://i.sstatic.net/S3G7l.png)
  
  As noted on Bricklink there could be some variations of this brick:
  
  > Several versions of this brick exist. Bush colors have been reported as red, black, milky white, and mixed colors, as well as a version missing the middle bush.
  
  
  ---
  
  