A spacer is a mechanical component used to create or maintain a gap or distance between two parts in an assembly. Spacers are typically cylindrical or tubular and are made from a variety of materials depending on the application, including metal, plastic, or ceramic. They are widely used in industries such as automotive, aerospace, electronics, and construction to ensure correct alignment, positioning, and spacing between components.
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Applications of Spacers
Electronics:Spacers are frequently used in PCB (printed circuit board) assemblies to maintain the correct distance between boards, components, or enclosures, ensuring proper heat dissipation and avoiding electrical shorts.
Automotive:In automotive applications, spacers are used to align parts such as brake calipers, wheels, and engine components, ensuring proper positioning and function. Wheel spacers are commonly used to create more clearance between the wheel and the suspension components.
Aerospace:Spacers in the aerospace industry are used to precisely position components like aircraft panels, engine mounts, and control systems, where correct alignment is crucial for safety and performance.
Construction and Manufacturing:Spacers are used in construction to maintain consistent gaps between structural elements or to ensure correct alignment of parts during assembly. They are also commonly found in machinery and equipment for positioning gears, pulleys, or bearings.
Furniture and Fixtures:In furniture assembly, spacers are used to ensure correct positioning of parts, such as in mounting shelves or attaching legs to tables.
Types of Spacers
Plain Spacers:Simple, unthreaded cylindrical tubes designed to maintain a gap or separation between two parts. These are often used when no fastening or securing function is required.
Threaded Spacers (Standoffs):These spacers have internal or external threads and are used to mount parts such as circuit boards or panels while maintaining a specific distance. Hexagonal standoffs are common in electronics, making it easy to screw them into place.
Shoulder Spacers:These have a shoulder or flange on one side to provide extra support or to act as a stop for positioning. They are often used in applications requiring precise alignment.
Precision Spacers:Precision spacers are machined to exact tolerances, used in applications like bearing assemblies or gears where the gap must be precisely controlled.