Polymeric Gears
Acetal Copolymer
- thermoplastic
- good stiffness and toughness
- requires minimal lubrication
Laminated phenolic
- compressed fabric layers bonded with resin
- not recommended for applications with shock loading
Nylon (polyamide)
- good strength and toughness (glass filled - higher strength)
- no lubrication needed, quiet operation
- but can absorb water