Общий каталог Yamawa 2021 - страница 553

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Special Threads, Gauges SITD Intro Inspection Tools SP Simple Thread Inspection Tools, Tandem Type FEATURES SL HSS HSS material increases considerably the gauge life. PO ST ROLL YMW-SITD Product Features CARBIDE - Under normal inspection procedure, the finished thread is checked by a 2-step process, by using GP GO gauge first and then NP/WP NO-GO gauge. Yamawa Thread Inspection Tool makes the thread inspection a 1-step process. - SITD, attached to a measuring machine, enables the mechanical measuring. - Even in difficult-to-insert thread inspection such as checking smaller sizes and/or finer Cleaning groove LONG pitch threads, smooth inspection becomes possible due to the step screw thread GO part (GB-6H) NOT-GO features of SITD. part (NB-6H) - What is the SITD? Both GO part and NOT-GO part are embedded in one tool. HAND TAPS - Cleaning groove Cleaning groove of the thread portion helps to remove the small particles left inside the internal threads and hence allows a smooth and accurate inspection procedure. EG (STI) Accuracy of SITD Simple pitch diameter tolerance, pitch tolerance and thread half angle tolerance, are 3 important factors on measuring internal screw threads. For SITD SPECIAL and thread plug gauge these values are the same. THREADS, GAUGES Comparison between GB-6H/and GP-6H/thread plug gauge Comparison between NB-6H/and NP-6H/thread plug gauge YMW Tolerance Tolerance Pitch Pitch OD PD tolerance for thread OD PD tolerance for thread THREAD Size half angle Size half angle MILLS Basic Max Min Tol. Basic Max Min Tol. Basic Max Min Tol. Basic Max Min Tol. (±) (±minute) (±) (±minute) size size size size GB-6H 6.000 6.023 6.001 0.022 5.350 5.3675 5.3565 0.011 0.005 15 NB-6H 5.7055 5.7165 5.6945 0.022 5.500 5.511 5.500 0.011 0.005 16 M6×1 M6×1 DIES GP-6H NP-6H 5.7055 5.7165 5.6945 0.022 5.500 5.511 5.500 0.011 6.000 6.023 6.001 0.022 5.350 5.3675 5.3565 0.011 0.005 15 0.005 16 M6×1 M6×1 The pitch diameter is simple pitch diameter. Pitch tolerance includes error of thread lead. CENTER Main specification of SITD is same with that of thread gauge. But SITD has partly Yamawa's own design in the length of thread and bottom part relief. Due to these features, DRILLS Yamawa has adopted the name "Simple Inspection Tool or SITD" instead of using the name "thread gauge". Technical info 554