What is Spring Lock Washer

1. What is Spring Lock Washer? Spring washers are characterized by their axial flexibility. They are typically used in machines and equipment that create strong vibrations. Because of their axial flexibility, spring washers won’t loosen or come undone from the vibrations, making them ideal for such applications. Common examples of spring washers include belleville washers, curved disc washers, wave washers, split washers, tab washer and toothed locked washers. Fasteners Company in India Types of Spring Lock Washers Belleville Washers: Also known as conical or disc spring washers, they provide the greatest load-bearing capacity for their size. They compensate for joint expansion and contraction, span holes, and maintain high tension in screw and nut assemblies. By combining them in varying sequence, each size gives numerous load carrying possibilities. ISO Fasteners Standards Curved Washers: Also known as single wave spring washers or cylindrically curved, they exert relatively light thrust loads and are often used to absorb axial end play or as lock washers for fasteners. The height of the form and material thickness are variables which can be adapted to a specific load/deflection function. Finger Washers: Counteract excess wear, vibration, noise, and end play. They promote efficiency and smooth operation, reducing skidding wear on rotating elements. They are also extremely useful in cases of unavoidable loose internal clearances due to special application conditions. Frequently used for preloading ball bearings and general applications. Wave Washers: Also known as waveform washers, they provide greater load-bearing capability because of their three-point contact and sharper curves or waves. They are typically used in thrust-loading applications for small deflections, particularly where radial space is limited. Applied loads are evenly distributed and there are not sharp edges to interfere or gall. The height and material thickness regulate the load function. What is the difference between a spring washer and a lock washer? A locking washer is a special type of washer that's used to prevent fastening or loosening, similar to the way in which a spring washer works. In fact, locking washers are essentially a sub-type of spring washers.

2. So how does a spring washer actually work? Spring washers use tension force to lock the nut into place. As the washer is tightened under load, the vertical cut ends of the washer grab the nut and bind against it. When the nut is fully tightened, the split in the washer should still be slightly out of alignment. This is visual proof that the spring washer is still operating as intended and actually exerting a force on the fastener. 8.8 Grade Bolt Manufacturers India Function of Spring Lock Washer The lock washer prevents nuts and bolts from turning, slipping and coming loose because of vibration and torque. Different lock washers perform this function in slightly different ways, but the basic concept is to hold the nut and bolt in place. Some lock washers achieve this function by biting into the base material (bolt) and the nut with their ends.