Общий каталог Yamawa 2022 - 2023 - страница 696

⑦ Special Thread Taps / Simple Inspection Tools Overall length L GO part ℓ1 NOT-GO part ℓ2 Recess length ℓ3 Thread + Neck ℓn length Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS SITD Spiral Fluted Taps (for blind hole) ① JIS Simple Thread Inspection Tools, Tandem Type Spiral Fluted Taps (for through hole) ② Specification Spiral Pointed Taps (for through hole) ③ Hand Taps ④ Product Features ●The SITD has two "screw threaded portions" in an integrated shape on one guage. It has sections for Go threads and Not Go threads combined, thus it can Cemented Carbide Taps be used in a continuous measurement of the GO (GP) and the NOT GO (NP / ⑤ WP) with one plug gauge. It is an inspection tool that can be completed in one Chip groove GO portion Not GO measurement. portion ●SITD is installed in a screw tightening machine when used. ●For use with small diameter fine pitch threads. Smooth measurement can be carried out by using the stepped thread even for screw inspection that is difficult Roll Taps to insert. ⑥ ●To ensure accurate inspection, it is mandatory to remove all small debris in the inside of the internal thread before inserting the guage into the thread thus, the chip groove end part is used for this purpose. Special Thread Taps Simple Inspection Tools ⑦ The accuracy of the SITD The single pitch diameter tolerance, the pitch tolerance and the threads half angle allowance are all important in the accurate measurement of an internal screw thread. The SITD gauges are manufactured to the same accuracy as that of a thread plug gauge. Pipe Taps ⑧ ■Comparison between the GO screw thread "GB-6H" ■Comparison of NOT GO thread portion "NB-6H" and and the GO screw thread plug gauge "GP-6H" Unit：mm NOT GO screw thread plug gauge "NP-6H" Unit：mm Thread Thread Major Diameter Pitch Diameter Pitch Tol. Half Major Diameter Pitch Diameter Pitch Tol. Half Size Angle Tol. Size Angle Tol. Basic Basic Basic Basic Max Min Tol. Max Min Tol. （±） （± Min.） Max Min Tol. Max Min Tol. （±） （± Min.） Thread Mills Premium Thread Mills Size Dia. Size Dia. ⑨ GB-6H NB-6H 6.000 6.023 6.001 0.022 5.350 5.3675 5.3565 0.011 0.005 15 5.7055 5.7165 5.6945 0.022 5.500 5.511 5.500 0.011 0.005 16 M6 × 1 M6 × 1 GP-6H NP-6H 6.000 6.023 6.001 0.022 5.350 5.3675 5.3565 0.011 0.005 15 5.7055 5.7165 5.6945 0.022 5.500 5.511 5.500 0.011 0.005 16 M6 × 1 M6 × 1 The pitch diameter is a single pitch diameter tolerance. The pitch diameter is a single pitch diameter tolerance. The tolerance of the pitch also includes the deviation of the lead. The tolerance of the pitch also includes the deviation of the lead. Dies * The screw thread precision is the same as a thread gauge, but since some of the specifications like length of screw thread ⑩ portion and the relief shape of the thread root are originated by YAMAWA. Therefore, these gauges are not to be called "thread gauge" and distinguished as "simple inspection tools for internal screw threads". The SITD is distinguished as a simple inspection tool of internal screw threads. Center Drills Centering Tools ⑪ JIS ⑦-51