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A ball swivel with an opening through which a bolt or other attaching hardware may pass is pressed into a circular casing with a threaded shaft attached. The threaded portion may be either male or female. The heim joint's advantage is that the ball insert permits the rod or bolt passing through it to be misaligned to a limited degree.
The keyhole of a mechanical cam lock is usually the same as an ordinary padlock. A physical key is used to unlock the lock. The physical key has a notch or slot corresponding to the obstacle in the cam lock, allowing it to rotate freely in the lock. Different from mechanical cam locks, electronic cam locks use an electronic key to unlock.
A typical ball joint with cutaway view (right) An inner tie rod end cut open to expose the ball joint. In an automobile, ball joints are spherical bearings that connect the control arms to the steering knuckles, and are used on virtually every automobile made. [1] They bionically resemble the ball-and-socket joints found in most tetrapod ...
When a boat swings on a well-embedded anchor, this can cause strong lateral loads on the swivel, causing its jaws to be pried open - thus disconnecting the chain from the swivel. Hence the above advice from Rocna. [4] Some boating schools teach that the anchor should be pulled tight against the bow roller by the windlass.
A positive locking device is a device used in conjunction with a fastener in order to positively lock the fastener. This means that the fastener cannot work loose from vibrations. The following is a list of positive locking devices: [1] A split beam nut; A castellated nut and a split pin; A hex nut or cap screw and a tab washer
The ball-bearing roller locking system used in straight-pull rifles like the Anschütz 1827 Fortner, Crossfire MK1, Heym SR 30 and Savage Impulse. The collet locking system used in the Blaser R8 / R93 / Blaser Tactical and Thompson .30-06 prototype which uses an expanding collet in a similar fashion.
Ball chain detail Dogtags on ball chain. Ball chain or bead chain is a type of chain consisting of small sheet metal balls connected via short lengths of wire. [1] The balls are hollow and have two small antipodal holes. These holes accept a short length of wire deformed on the end like a rivet so that the end is bound inside the ball. The wire ...
A rack and pinion has roughly the same purpose as a worm gear with a rack replacing the gear, in that both convert torque to linear force. However the rack and pinion generally provides higher linear speed — since a full turn of the pinion displaces the rack by an amount equal to the pinion's pitch circle whereas a full rotation of the worm screw only displaces the rack by one tooth width.