Can I use a threadlocker for non-threaded assemblies like locking bearings or bushings in housings or on shafts?
Yes, you can. Traditionally we recommend retaining compounds like LOCTITE 609 or LOCTITE 603 but threadlockers are the same base chemistry and could be substituted in many cases. In fact, years ago Threadlocker LOCTITE 271 was referenced as Stud & Bearing Mount. Inversely, you could use retaining compounds to lock threads as long as you're cognizant of the fact that most will permanently lock threads.