Acetal in wear pairs
- Low friction against metal and itself
- Stable dimensions in wet environments
- Can develop squeak if paired with the wrong polymer
Wear comparison
Acetal vs Nylon for Wear Applications: Friction, Moisture, and Noise
Acetal pairs well with steel and itself in dry sliding. Nylon with lubricant fill can carry higher load and impact in wet assemblies.
Wear comparison
Wear is a system test, not a datasheet row
Mating material, lubrication, and moisture matter as much as resin name.
Start with acetal when dimensions must stay stable in humid gear trains.
Move to lubricated nylon when impact and fiber reinforcement enter the load case.
Resin choice
Acetal versus Nylon at a glance
Use this routing before you lock the BOM. NetProto molds both once the resin is specified on the quote.
Nylon in wear pairs
- Impact tolerance for engaging lugs and snaps
- Internal lubricant grades reduce friction without grease
- Moisture swell must be modeled in tight gears
Decision table
Where each resin usually wins
Qualitative tradeoffs for molded parts. Confirm shrink, fill, and tooling details on the material guide.
| Factor | Acetal in wear pairs | Nylon in wear pairs |
|---|---|---|
| Moisture stability | Better | Swelling in tight tolerances |
| Impact | Lower | Higher |
| Noise | Can squeak on POM pairs | Often quieter with lubricated grades |
| Load | Moderate sliding loads | Higher structural loads with fill |
Before you quote
Send this context with your CAD
The instant quote uses your material choice for fill, gate, and steel assumptions.
Mating material (steel, POM, PA, PTFE coated)
Lubrication present or dry service
Temperature during wear test
Required life cycles in validation
Material guides
Full property pages
These library pages carry datasheets, DFM notes, and quote checklists.
Acetal (POM)
Open the Acetal (POM) molding guide.
Acetal (POM)Lubricated POM
Open the Lubricated POM molding guide.
Lubricated POMNylon
Open the Nylon molding guide.
NylonContinue exploring
Related comparisons
Open a sibling guide or jump to the full material library.
Compare hub
All comparison guides.
Compare hubMaterials library
Deep guides per resin family.
Materials libraryNylon vs acetal
General family comparison.
Nylon vs acetalTPU vs TPE
Soft wear pads versus rigid gears.
TPU vs TPEFAQ
Common questions
Should I grease acetal gears?
Many acetal pairs run dry. Grease can attract dust. Validate the lubrication plan in your test fixture.
Next step
Quote both options with the same CAD
Upload once, switch resin in the quote flow, and compare piece price on the same tool. NetProto manufacturing is ISO 9001 certified.