In whatever project you are in, it is crucial that you ensure the right components or parts are being utilised for successful operation. Washers are critical to a successful operation of every machine with moving parts. Washers are more than securing nuts, bolts, screws, and rivets. It also distributes the pressure evenly over any surface without damaging it.
There are many types of washers. Knowing the right one for a particular application should be a priority. Remember that failure to indicate the right washer can lead to machine downtime and eventually increased production costs. Basically, there are 6 basic washer types with few specialty types. Here’s a list:
The flat washer is the most common type of washer. It is famous because of the many washer configurations it offers. It is a general-purpose washer. Flat washers are flat, thin and circular. It has a hole in the middle.
Shoulder washer is known as flange or step washers. It has a low cylindrical sleeve with a low crowned top hat. The sleeve is created to fit with segregates and cutout from the material it is attached to. It is used as insulators for electronic equipment.
Tab washer is a lock washer that has a round shape. It is created with multiple or single tab and notches, which can be formed to shape around the nuts and bolts. It is also created to lie flat depending on the application. This type of washer is best for severe environments (extreme heat conditions and intense vibrations) because it can securely lock a part.
Lock washers are created to secure the fasteners that have a tendency to loosen or rotate. The lock washers will exert a load, which can initially deform and lock the fastener in its place. The lock washer has teeth or split coil that gives bite unto the head of the fastener or against another flat surface. In some applications, lock washers are used together with flat washers to dispense the load equally without deforming the assembly t is attached to.
Countersunk washer is referred to as finishing washers. It is designed to catch the fastener’s head. It is available in many shapes including the 90 degrees countersunk, flanged, un-flanged, angle countersunk and many more. Countersunk washers are found on consumer products.
Spring washers are also called disc springs. It is irregular, which is effective in squeezing equivalent resistance to go back to their pre-deflected shape. It is used in applications where it needs to absorb intermittent shock and maintain the assembly tension. Spring washers are cost-effective, compact and lightweight. There are three types of spring washers: Belleville, cylindrically curved and wave.
Apart from knowing the types of the washer, you should also consider the materials used before purchasing. There are metallic and non-metallic materials provided by Superior Washer & Gasket Company. The price of the washers will depend on the type, materials used, size and the finish. Whatever you choose, make sure that it can support your project.