Answers.Body: <p>They both appear to have the same part ID despite being quite different.</p>
  
  <p>Sariel answers most of your questions in <em>The Unofficial LEGO Technic Builder's Guide</em>.</p>
  
  <blockquote>
    <p><strong>toothed half bush with a cutout</strong></p>
    
    <p>The second variant, the toothed half bush with a cutout, is exactly
    what its name implies: a copy of the previous version with part of the
    axle hole cut out, which makes the axle hole large (see Figure 4-13). </p>
    
    <p>This modification was introduced to make it easier for children to
    take half bushes on and off the axles, and that's exactly what makes
    it much less popular with builders: These bushes are more likely to
    shift when stressed than the first variant. </p>
    
    <p>Other than that, it has every quality of the original toothed half
    bush except that, having been introduced a few years later, it's newer
    and thus made of strong material.</p>
    
    <p>(Chapter 4. Page 36.)</p>
  </blockquote>
  
  <p>Pawel "Sariel" Kmiec, 2012. <em>The Unofficial LEGO Technic Builder's Guide</em>. 1 Edition. No Starch Press. </p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-06-27T13:16:00.813Z
Answers.LastActivityDate: 2015-06-27T13:16:00.813Z
Answers.UserDisplayName: Ambo100
Answers.Body: <p>Interesting... <a href="http://www.brickowl.com" rel="nofollow noreferrer">brickowl</a> lists the right picture for <a href="http://www.brickowl.com/catalog/lego-half-bushing-32123" rel="nofollow noreferrer">4265c</a> while <a href="http://www.peeron.com" rel="nofollow noreferrer">peeron</a> lists <a href="http://www.peeron.com/inv/parts/4265c?img=20791" rel="nofollow noreferrer">the left picture</a>.</p>
  
  <p>This leads me to think that both are interchangeable and that the one in the right picture is a more cost-efficient version of 4265c (using slightly less ABS). <a href="http://shop.lego.com/en-US/Pick-A-Brick-ByTheme" rel="nofollow noreferrer">Lego Pick-a-Brick</a> also shows the version in the picture on the right.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2015-06-26T12:51:41.657Z
Answers.LastActivityDate: 2019-12-12T17:12:12.510Z
Answers.LastEditDate: 2019-12-12T17:12:12.510Z
Answers.UserDisplayName: Phil B.
Body: <p>While randomly browsing some LEGO sites, I came across a weird (to me anyway) looking bushing. Its part <a href="http://www.bricklink.com/catalogItem.asp?P=4265c" rel="nofollow noreferrer">4265c</a>. Below is one of the images describing it and the left one I recognize, but the right one I have never seen. It looks like there is some built-in play to the axis.</p>
  
  <p>So my questions:</p>
  
  <ol>
  <li>Are the two bushings on the image interchangeable?</li>
  <li>Are they both really referred to by the same id (<a href="http://www.bricklink.com/catalogItem.asp?P=4265c" rel="nofollow noreferrer">4265c</a>)?</li>
  <li>Is there any practical difference between the two?</li>
  <li>Are there any specific use cases where the second would be preferred over the first one? </li>
  </ol>
  
  <p><img src="https://i.sstatic.net/Y1tF0.jpg" alt="Bushing 4265c"></p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-06-29T20:44:44.853Z
Comments.Text: Related to: [What's the difference between these hole shapes?](http://bricks.stackexchange.com/q/4277/56)
Comments.UserDisplayName: Zhaph - Ben Duguid
Tags: <piece-information><technic>
Title: What is the difference between these two Technic half bushings?
UserDisplayName: UlfR
ThreadText: # What is the difference between these two Technic half bushings?
  
  (Asked by: username_0 on 2015-06-26)
  
  While randomly browsing some LEGO sites, I came across a weird (to me anyway) looking bushing. Its part [4265c](http://www.bricklink.com/catalogItem.asp?P=4265c). Below is one of the images describing it and the left one I recognize, but the right one I have never seen. It looks like there is some built-in play to the axis.
  
  So my questions:
  
  1. Are the two bushings on the image interchangeable?
  2. Are they both really referred to by the same id ([4265c](http://www.bricklink.com/catalogItem.asp?P=4265c))?
  3. Is there any practical difference between the two?
  4. Are there any specific use cases where the second would be preferred over the first one?
  
  ![Bushing 4265c](https://i.sstatic.net/Y1tF0.jpg)
  
  **Tags:** piece-information, technic
  
  > **Comments:**
  > **username_1**: Related to: [What's the difference between these hole shapes?](http://bricks.stackexchange.com/q/4277/56)  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2015-06-27. Score: 6 | Accepted answer
  
  They both appear to have the same part ID despite being quite different.
  
  Sariel answers most of your questions in *The Unofficial LEGO Technic Builder's Guide*.
  
  > **toothed half bush with a cutout**
  >
  > The second variant, the toothed half bush with a cutout, is exactly
  > what its name implies: a copy of the previous version with part of the
  > axle hole cut out, which makes the axle hole large (see Figure 4-13).
  >
  > This modification was introduced to make it easier for children to
  > take half bushes on and off the axles, and that's exactly what makes
  > it much less popular with builders: These bushes are more likely to
  > shift when stressed than the first variant.
  >
  > Other than that, it has every quality of the original toothed half
  > bush except that, having been introduced a few years later, it's newer
  > and thus made of strong material.
  >
  > (Chapter 4. Page 36.)
  
  Pawel "Sariel" Kmiec, 2012. *The Unofficial LEGO Technic Builder's Guide*. 1 Edition. No Starch Press.
  
  
  ---
  
  ### Answer by username_3 on 2015-06-26. Score: 0
  
  Interesting... [brickowl](http://www.brickowl.com) lists the right picture for [4265c](http://www.brickowl.com/catalog/lego-half-bushing-32123) while [peeron](http://www.peeron.com) lists [the left picture](http://www.peeron.com/inv/parts/4265c?img=20791).
  
  This leads me to think that both are interchangeable and that the one in the right picture is a more cost-efficient version of 4265c (using slightly less ABS). [Lego Pick-a-Brick](http://shop.lego.com/en-US/Pick-A-Brick-ByTheme) also shows the version in the picture on the right.
  
  
  ---
  
  