What is Self Lock Washer

1. What is Self-Lock Washer? A locking washeris a type of washer that’s designed specifically to prevent the bolt with which it’s used from loosening. Like other washers, they’ll distribute the load of the fastened object or objects more evenly. Locking washers go one step further, though, by “locking” the bolts in place. Bolts can loosen over time. If installed in a machine or piece of equipment, a bolt may gradually loosen. Eventually, the bolt may work its way out of the threading hole where it was originally installed. Locking washers prevent this from happening by securing the bolt in place. Even if the machine or equipment produces heavy vibrations, the bolt shouldn’t loosen if it’s secured with a locking washer. Fasteners Manufacturers Mumbai How Does a Lock Washer Work? Fasteners loosen for two reasons: spontaneous self-loosening and something called slackening. Spontaneous self-loosening AKA rotational loosening happens when a fastener experiences stress from dynamic use. Slackening occurs when the material beneath the fastener settles once the fastener has been tightened. Certain materials, especially softer ones, are prone to excessive settlement. The settlement of these materials releases the preload of the fastener, causing it to loosen. How many times can you reuse a lock washer? HEICO-LOCK washers can be reused more than 20 times with a typical 10.9 grade bolt. Washers should be monitored and replaced more frequently with harder bolts. Stainless steel washers should be replaced after a single use. Why is it called a lock washer? Apart from the variety of standard flat washers covered in our last article, the next most common type of washers are lock washers. Lock washers contain mechanisms that prevent bolts and nuts from loosening in the face of torque and vibration, thereby creating their namesake “lock” on the assembly. Types of Lock Washers? Listed below are common lock washer types and the applications in which each would be most useful. Split lock washer: Split lock washers are washers that have been split, resulting in two opposed edges. These sharp edges slightly dig into each side

2. of the joint and create friction between the bolt and the bolted material, which helps to hold the bolt in place. This type of washer is most useful in applications that require a lightly torqued bolt driven into relatively soft material, such as soft metal, wood, or plastic. If the bolt is powerfully torqued, the split ring is flattened and compromised as a result. ASME Fastener Standards High collar lock washer: A high collar is similar to a split washer but much thicker and springier. These washers can be used in a similar way, but handle a significantly higher torque load. External serrated washer: External serrated washers look similar to a standard washer, but feature teeth along the edge. The serrated edge creates friction by digging into the materials. These are commonly used for appliances, HVAC units, and various electrical connections. Hex Nut Suppliers Internal serrated washer: Internal serrated washers work similarly to external serrated washers, only the teeth are on the inside rather than the outside. This makes them suitable for smaller head bolts or instances when the teeth should be hidden. Belleville washer: A Belleville washer, otherwise known as a conical spring washer, is a conically shaped washer without splits or serrations. The conical shape makes the washer springy once a load is applied, which protects the bolt's preload and prevents bolt creep.