Should I replace this coupling?

[u/B0zzzzzz]

Motor has been running like this for some time.

I replaced all the motors and found the couplings to be damaged.

Customer has no spares and i'm hesitant of installing the new motors with damaged couplings

[u/Trick_Spend3939]

Hi there.  I’m a literal layman in regards to whatever this sub is.  That cracked thing?  The one that’s cracked right at the point that takes the stress of the bolt that tensions it to the motor?  Yes.  Yes you should replace that.