Общий каталог Yamawa 2022 - 2023 - страница 1161

Metric Thread and Gauge Profile ■Internal threads and Limit gauges for internal threads Description of products Gauge for Pitch Dia. of internal thread Gauge for Minor Dia. of Internal Thread Tolerance zone Tolerance zone for Pitch Dia, of for Minor Dia. of Limit plug Limit plug Plain GO pIug gauge Go PIug gauge (Both for working and inspection) Plain NOT GO plug gauge NOT GO Working plug gauge NOT GO inspection plug gauge NOT GO screw pIug gauge internal thread internal thread gauges for gauges for Inspection Working GO screw pIug gaug Go Not Go Not Go Go Not Go Go Pitch diameter tolerance and Minor diameter tolerance of internal thread Class 2 Class 2 Tolerance of screw plug gauge and plug gauge Minimum wear Example：ISO M10X1.5/6H and old JIS M10x1.5/Class2 *Relation between tolerance zone of internal thread and that of limit gauges for internal thread is shown : *Pitch diameter of internal thread is virtual pitch diameter. *Pitch diameter of screw plug gauge is simple pitch diameter. Clearance 6H Class 2 6H Class 2 Basic Profile Basic Pitch Dia. of internal thread 9.026mm Note : The allowance and tolerance should be described as 1/2 scale but is simply described in the size of actual diameter. Basic Minor Dia. of internal thread 8.376mm . Limit gauges for screw threads JIS B 0251-2008 Limit gauges for metric screw threads JIS B 0251-1975 Limit gauges for metric coarse screw threads Appendix JIS B 0252-1996 Limit gauges for metric fine screw threads Information Technical JIS B 0253-1985 Gauges for taper pipe threads JIS B 0254-1985 Gauges for parallel pipe threads JIS B 0255-1975 Limit gauges for unified coarse screw threads JIS B 0256-1975 Limit gauges for unified fine screw threads Technical-10