Permissible temperature

Symbol ϑzul
Unit °C
Attribute-ID vdi_2736_2014_permissible_temperatures
Numeric ID 9953
Value Type PMTechValue

The permissible temperature specified here should be the maximum permissible peak temperature for the material and the application. If the tooth flank or tooth root temperature exceeds this value, a warning message is displayed.

The following is a selection:

Material θzul,short term in °C θzul,continuous in °C
Polyamide 66 (PA 66) 140...170 80...100
Polyamide 6 (PA 6) 140...160 80...100
Polyamide 12 (PA 12) 140 70...80
Polyamide 46 (PA 46) ~180 ~140
Polyamide-imide (PAI) ~300 ~260
High-density polyethylene (HDPE) 80...110 60...80
Polyethylene terephthalate (PET) ~170 ~100
Polyoxymethylene (POM) 110...140 90...100
Polybutylene terephthalate (PBT) ~160 ~100
Cast polyamide (PA 12 G) ~150 ~80
Polyphenylene sulphide (PPS) 270...300 200...240
Polyetheretherketone (PEEK) ~300 ~250
Thermoplastic elastomer (TPE) 160 80
Polyphenylene sulphide + 40 % fiberglass by weight (PPS GF40) 270...300 200...240
Polyetheretherketone + 30 % carbon fiber by weight (PEEK KF30) ~300 ~250
Polyamide 66 + 30 % fiberglass by weight (PA 66 GF30) 140...170 80...100
Polyphthalamide + 30 % fiberglass by weight (PA 66 GF30) ~250 ~150

When "from material" is selected, the value for θzul is used.

Source: VDI 2736:2016-07 Sheet 1 (Annex)