Use split lock washers primarily in applications involving vibrations.
Split lock washers, also known as spring lock washers, are designed with a single coil that creates tension between the fastener head and the substrate. According to the provided reference, split washers are effective in preventing bolts from loosening in dynamic environments:
Split washers can prevent bolts from loosening due to vibrations. As a machine or piece of equipment vibrates, the split washer will push back into it. Split washers are ideal for applications involving vibrations because they prevent the bolts with which they are used from loosening.
This makes them a suitable choice when the bolted joint is subject to movement or oscillations that could otherwise cause the fastener to back out over time.
Why Use Them in Vibratory Applications?
The key benefit highlighted is their ability to maintain pressure. When vibrations occur, the split ends of the washer dig slightly into the fastener head and the mating surface. This digging action, combined with the spring tension, resists the rotational forces that can loosen a bolt or nut. While they don't offer the same high-security locking as some other types of washers or fasteners, they provide a basic level of vibration resistance.
Common Applications
Based on their suitability for vibratory environments, split lock washers are often found in various assemblies, including:
- Machinery: Used in mechanical equipment like pumps, motors, and industrial machinery where operational vibrations are common.
- Vehicles: Applied in automotive and other transportation systems, though often supplemented or replaced by other locking methods in critical safety areas.
- Appliances: Found in household and commercial appliances that vibrate during operation (e.g., washing machines, dryers).
- Construction Equipment: Used in heavy equipment exposed to significant jolting and vibration during use.
It is important to note that the effectiveness of split lock washers can be debated in certain engineering contexts, especially under severe vibration or dynamic loads. However, based on the provided information, their primary recommended use case is explicitly tied to scenarios where vibrations are present and preventing fastener loosening is necessary.
