Eye bolts and hoist rings are mechanical fasteners with a threaded shaft and head forming a ring, and they attach to cables, ropes, or shackles to either secure an object to a structure and mitigate its movement, or they are installed to a device for lifting. While both are ring-shaped fasteners, eye bolts and hoist rings are two separate components with branching characteristics and applications. However, they do share one specific function in relation to one another; objects like a cable or other similar equipment can be inserted through the ring of an eye bolt or hoist ring to create a joining method for lifting heavy-duty equipment.
Eye bolts function as straight, unmoving focal points for overhead lifting equipment utilizing an in-line cable or pull, and each fastener consists of an eye, shoulder, and shank. However, each individual eye bolt is designed to hold a predetermined amount of weight, making them susceptible to failure if overloaded. As such, different styles and configurations exist to accommodate various load lifting ranges within different industries that require rigging, anchoring, pulling, or hoisting applications between 200-65,000 lbs. This makes them especially useful for lifting items like motors, containers, plates of steel, dies, and more.
When compared to hoist rings, eye bolts are simple in nature, lacking any moving parts which makes them easy to use and maintain. Though, they are non-repairable, meaning any damage to the apparatus requires immediate part replacement before resuming prior operations. Because of their simplicity, eye bolts usually come at a reduced cost; that way they can be replaced quickly, even when in high demand.
Hoist rings, otherwise known as swivel hoist rings or swivel eye bolts, are often used in place of an eye bolt when an overhead lift is angular or requires manipulation of the load. Although similar in function to eye bolts, hoist rings have an additional feature which allows them the capability to swivel and/or pivot in place, serving use for lifting objects at an angle without damaging the overall mechanism. Further, much like eye bolts, such components are routinely employed to lift large containers, motors, dies, plates of steel, and other heavy items.
Fabricated to be sturdy, hoist rings typically provide more leverage when it comes to lifting loads. This means that they can hold anywhere from 800-250,000 lbs depending on the type of hoist chosen, alongside the particular size and shape of the load which needs lifting. Moreover, more than one hoist ring can be installed throughout the surface of a load to supply further support during turning, flipping, and other non-lateral movements.
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