Общий каталог Yamawa 2021 - страница 553

• Copertina
• Capitoli web
• Parte finale web

Special Threads, Gauges Intro SITD Inspection Tools SP Simple Thread Inspection Tools, Tandem Type SL HSS FEATURESHSS 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 LONG pitch threads, smooth inspection becomes possible due to the step screw thread Cleaning groove GO part (GB-6H) NOT-GO features of SITD. part (NB-6H) - What is the SITD? HAND Both GO part and NOT-GO part are embedded in one tool. 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 ODTHREADSize PD PitchtoleranceTolerancefor threadhalf angleSizeOD PD PitchtoleranceTolerancefor threadhalf angle MILLS BasicsizeMax Min Tol. BasicsizeMaxMin Tol. (±) (±minute) BasicsizeMaxMin Tol. BasicsizeMax Min Tol. (±) (±minute) GB-6HM6×1 6.000 6.023 6.001 0.022 5.350 5.3675 5.3565 0.011 0.005 15 NB-6HM6×15.7055 5.7165 5.6945 0.022 5.500 5.511 5.500 0.011 0.005 16 DIES GP-6HM6×1 6.000 6.023 6.001 0.022 5.350 5.3675 5.3565 0.011 0.005 15 NP-6HM6×15.7055 5.7165 5.6945 0.022 5.500 5.511 5.500 0.011 0.005 16 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