# What is a shaft collar called that is used to restrain a pulley?

I would like to look for a shaft collar like the one used in this photo of a cable robot:

As you can see, there is a flexure that clamps the collar onto the shaft (as a shaft collar does). In addition, there are two screw holes where the collar can secure to a pulley.

When shaft collar is typed into google you get an infinity of these, so clearly I don't have good search terms or the correct name for this type of component:

• There is a variety of shaft collars. A good way to figure out names is McMaster, which has one of the best parts websites I can think of -- mcmaster.com/shaft-collars/construction~one-piece/… ... As NMech points out, the picture is also showing a flange feature, which may be the more unique feature in the picture. Oct 6, 2021 at 16:17

• mountable shaft collar with flange or
• flanged mount