Din 16742 - Tg5 !!link!! Jun 2026

Tolerance Group 5 (TG5) is a high-precision classification. It is typically specified for technical components that require exact fits and functional interfaces, such as gears, electronic housings, and automotive sub-assemblies.

+-----------------------------------------------------------+ | DIN 16742 FRAMEWORK | +-----------------------------------------------------------+ | | v v Tolerance Groups (TG1 - TG9) Dimension Classes (Based on material properties) (Tool-Fixed vs. Non-Tool-Fixed) Deciphering Tolerance Group 5 (TG5) din 16742 - tg5

Many molders hesitate to guarantee TG5 for three reasons: Tolerance Group 5 (TG5) is a high-precision classification

| Material group | Typical shrink range (%) | TG5 achievable? | |----------------------|--------------------------|------------------| | Amorphous (PS, PC) | 0.3 – 0.7 | Yes, easily | | Semi-crystalline (PA, POM) | 0.8 – 2.2 | Yes, if mold designed for nominal | | Filled (GF30, mineral) | 0.1 – 0.5 | Yes, better precision even at TG5 | easily | | Semi-crystalline (PA

: The choice of material significantly affects tolerance; for instance, crystalline materials tend to shrink and warp more, which can increase the necessary tolerance field. Key Technical Considerations Draft Angles : A standard draft angle of 1.5∘1.5 raised to the composed with power 2∘2 raised to the composed with power