Technical guide
Modified POM Application Review by Part Function
Gears balance fatigue and wear, spools starting force and sealing, conveyor supports stiffness and creep. This page turns those risks into material criteria for a first grade shortlist and molding-trial checks.
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Moving Contact: Gears, Bushings, Sliders And Rollers
For low-speed starts, dry sliding or stick-slip noise, start with PTFE-modified EPTL402. Compare starting force, running torque and wear separately for steel–plastic and plastic–plastic pairs.
- Define torque or contact load, speed, movement pattern, duty cycle, alignment, expected life, and whether the assembly starts after long idle periods.
- Record the counterpart material, hardness, surface finish, lubrication, contact area, and acceptable wear on both the POM part and mating surface.
- Separate wear life, running friction, breakaway force, stick-slip, noise, heat, and dimensional retention into individual acceptance criteria.
- Compare unfilled, wear-resistant, low-friction, or reinforced directions against the dominant failure mode instead of assuming one modification improves every contact condition.
- Validate shortlisted grades in representative geometry and contact conditions; standard specimen values cannot reproduce tooth form, edge loading, alignment, or surface finish.
Technical Review
Need help applying this guidance to your part?
Send the current material, part function and unmet requirements for candidate-grade comparisons, TDS and molding-trial sample support. Existing test records will help define the first validation priorities.