Sliding these collars on  shaft and tighting the set screw to keep the collar . Collars are easy to adjust with the screws. 

1)Material: Steel or Stainless

2)Great Finish ,Black Oxid

3)Assembly with setscrew

4)Small quantity available

5)ISO9001:2008 certified

6)Strict QC system

7)OEM available

8)Reasonable price

9)On time delivery 

10) Available in several different styles to meet you or your customer’s needs.