<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>

CC BY-SA 3.0
2015-06-27T13:16:00.813Z
2015-06-27T13:16:00.813Z
Ambo100
<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>

CC BY-SA 4.0
2015-06-26T12:51:41.657Z
2019-12-12T17:12:12.510Z
2019-12-12T17:12:12.510Z
Phil B.
<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>

CC BY-SA 3.0
2015-06-29T20:44:44.853Z
Related to: [What's the difference between these hole shapes?](http://bricks.stackexchange.com/q/4277/56)
Zhaph - Ben Duguid
<piece-information><technic>
What is the difference between these two Technic half bushings?
UlfR
# 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.


---

