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A washer is a thin plate (typically disk-shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a screw or nut. We offer all sizes of Heavy Washer, Plain & Machined Washers, Taper Washers, Chamfered Washer, Machined Washers Ss Washer, Flat Washer as per drawing & specification, national & international standard.
A Belleville washer, also known as a coned-disc spring, conical spring washer, disc spring, Belleville spring or cupped spring washer, is a conical shell which can be loaded along its axis either statically or dynamically. A Belleville washer is a type of spring shaped like a washer. It is the frusto-conical shape that gives the washer its characteristic spring.
Plain Chamfered Washers. Also known as a Through Hardened washer. Used with high strength friction grip / preloaded bolting assemblies. Designed to stop the bolt head or nut embedding into the material being clamped or deforming when under load instead distributing the force onto the material over a wider area.
Spring washers, which have axial flexibility and are used to prevent fastening or loosening due to vibrations. Spring washers, sometimes called disc springs, are a subtype of washers. They lend their mechanical capabilities to the unique profile of the material: when subject to a load, the irregularities of the washer compress with a proportionate resistance to return to their predeflected shape. Spring washers are employed in applications where assemblies need a part to take up play, eliminate rattle, maintain assembly tension, compensate for expansion or contraction in materials after assembly, or to absorb intermittent shock loads and provide a controlled reaction under dynamic loads.
DTIs are a function of induced tension. As a fastener assembly is tightened, the archlike protrusions are compressed and the change in distance between the base of the protrusions of the DTI washer and the protrusion apex, correlates to a value of tensile force induced into the fastener. This distance can be verified by insertion of a tapered feeler gage between the protrusions to the bolt shank. The number of instances the bolt shank can be reached by the feeler gage is then compared to either the results of a pre-installation verification procedure or the manufacturer's
A circular washer with circular hole and 2 nibs is called as ear washer it is generally supplied as per is 6649 with type “A”. It is hard and tempered washer with hardness 35- 45 hrc for finish black oxide & with hardness 26-45 hrc for finish hot dip galvanized.
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