POM, often referred to as Delrin or acetal in procurement conversations, is a strong fit for motion-related plastic parts. It machines cleanly, holds dimensions well, and supports a lower-friction surface than many general plastics.
This makes it especially attractive for wear strips, gears, bearing-like components, guides, and precision housings where repeatability matters more than surface cosmetics or transparency.
Delrin's coefficient of friction against steel runs around 0.2–0.3 in dry sliding conditions — roughly half that of nylon — which is why it is preferred for unlubricated bearing and gear applications. It also absorbs far less moisture than nylon (typically under 0.3% at saturation vs. nylon's 2–8%), so dimensions stay more stable when humidity changes. These two properties alone explain why acetal dominates precision plastic motion components.
Delrin gears run quieter than metal gears, require no lubrication in light-load applications, and damp vibration naturally. They are common in office equipment, packaging machinery, and consumer products where noise reduction and maintenance-free operation are priorities. ZigiTech cuts involute gear profiles directly on the CNC mill for prototype and low-volume gear sets.
Assembly fixtures and inspection nests machined from Delrin protect mating parts from scratching while providing predictable, low-friction guidance. Unlike metal-on-metal tooling that can gall or transfer material, Delrin surfaces slide smoothly against aluminum, steel, and other plastics without lubrication or coating.
POM's dimensional stability and low moisture absorption make it suitable for precision spacers, bearing preload adjusters, and alignment bushings where tenths-of-a-millimeter consistency matters. It is often used as a lightweight, non-conductive replacement for bronze bushings in low-to-moderate-load applications.
For custom automation builds — indexing mechanisms, cam followers, conveyor wear strips — machined Delrin fills the gap between off-the-shelf plastic stock shapes and fully custom metal components. Parts can be machined in days rather than waiting for molded plastic tooling or cast metal lead times.
Used for many general low-friction and dimensional-stability applications.
Reviewed where friction and wear behavior are especially important.
Black, blue, and white options may be selected for assembly coding or cosmetic preference.
Low friction / Dimensional stability / Good wear resistance
Standard POM / Delrin, POM 100AF, Color variants
Many POM parts ship as machined because the natural surface already suits functional assemblies.
About 6 business days
Yes. Delrin is one of the most practical CNC plastics for gears, guides, wear parts, and precise mechanical components because it machines well and provides strong dimensional stability.
POM is usually preferred when low friction, wear behavior, and dimensional precision matter more. ABS is often the better choice for general housings and appearance-focused prototype parts.
Yes. It is commonly used for gears, guides, rollers, and sliding features, provided the design is reviewed for load, wear, and environment.
