National Lockwasher owned U . S . Patent 1, 655, 018, which covered split-ring, compression-spring lock washers with a construction preventing them from interlinking with one another when handled in bulk.
12.
At the same time, the alternator drive hub fastening method was changed from a lock washer to a belleville washer to stop the bolt from working loose due to heat cycling.
13.
:: : Split lock washers have at least one advantage over star lock washers : You can easily tell when they're fully compressed, both visually ( they're squashed flat ) and through the rapid rise in torque that occurs.
14.
:: : Split lock washers have at least one advantage over star lock washers : You can easily tell when they're fully compressed, both visually ( they're squashed flat ) and through the rapid rise in torque that occurs.
15.
I've seen you there, too, your wife standing by patiently as you sensuously paw through the bins of lock washers, as your heart flutters at the sight of 57 sizes of wood screws, as your nostrils flare while you mentally undress the cordless drills.
16.
The use and effectiveness of spring lock washers has been in debate of late, with some publications advising against their use on the grounds that, when tight, the washer is flat against the substrate and gives no more resistance to rotation than a normal washer at the same torque.
17.
In applications where vibration or rotation may work a nut loose, various locking mechanisms may be employed : lock washers, jam nuts, specialist adhesive thread-locking fluid such as Loctite, safety pins ( split pins ) or lockwire in conjunction with castellated nuts, nylon inserts ( Nyloc nut ), or slightly oval-shaped threads.
18.
They can also be a lot less-marring to the surface and the bolt . ( Wave washers and Bellevilles are even less-marring, of course, and share some of the " indicating " advantages of split-lock washers . ) But as 83.100.138.7 mentioned, if you're looking for a solid electrical connection, those star washers ( with their surface-up-chewing teeth ) have it all over the other kinds of washers.
