Обший каталог Yamawa 2016 - 2017 - страница 788

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Classes of Internal Threads and Classes of Cutting Taps Description of products 1. ISO Tap Classes. μm Pitch Dia. tolerance zone of 5H=100μm : (Tolerance 20μm) Class Class 1 Class 2 Class 3 Symbol ISO 1 ISO 2 ISO 3 Classes of 4H, 5H 6H 6G, 7H, 8H Internal threads class 3 class 2 class 1 Internal thread : Tap : Pitch Dia. tolerance zone Pitch Dia. tolerance of 5H Basic Pitch Dia. 2. Comparison of pitch diameter tolerance zone for the classes of internal thread and tap. ■For Metric threads (1) Tap limit classes of YAMAWA P ISO 1, ISO 2, ISO 3, ISO 2X. (2) Pitch diameter tolerance zone of ISO 5H class 1 for M1.4 and smaller (3) Pitch diameter tolerance zone of ISO 6H (Internal thread) larger than MI.4 Sizes Basic Pitch Dia. (+)μm ISO 2X ISO 1 ISO 2 ISO 1 ISO 2X ISO 2 ISO 1 ISO 2 ISO 3 ISO 2X ISO 2X Internal threads 5H ISO 1 ISO 2 Internal threads 6H ISO 2X ISO 1 ISO 2 ISO 2X ISO 1 ISO 2 ISO 2X ISO 1 ISO 2 ISO 2X ISO 1 ISO 2 ISO 2X ISO 1 ISO 2 ISO 2X Technical Information ISO 1 ISO 2 ISO 2X ISO 1 ISO 2 ISO 3 ISO 2X ISO 1 ISO 2 ISO 3 Technical-13 784