Coned Aluminium Spindle Locking Collars are a type of mechanical fastening device used to secure a shaft or spindle in place. They consist of a conical-shaped body with internal and external threads that mate with the shaft, and a locking mechanism to prevent the collar from coming loose over time. 

Used for when the drum hole is over sized, this will give an even load over the drum, reducing ware and tear. 

Collars to suit 50mm OD spindle (Supplied as a set of 2) 60 – 100mm range, 150mm long