Общий каталог Yamawa 2021 - страница 553
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Intro SITD
Inspection Tools
SP
Simple Thread Inspection Tools, Tandem Type
SL FEATURES
HSS HSS material increases considerably the gauge life.
PO
ST
ROLL
YMW-SITD
Product Features
CARBIDE - Under normal inspection procedure, the fi nished thread is checked by a 2-step
process, by using GP GO gauge fi rst 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 diffi cult-to-insert thread inspection such as checking smaller sizes and/or fi ner
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? 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
| Size | OD | PD | Pitch tolerance | Tolerance for thread half angle | Size | OD | P | D | Pitch tolerance | Tolerance for thread half angle | |||
| Basic size Max Min | Tol. | Basic size Max Min | Tol. | (±) | (±minute) | Basic size Max Min Tol. | Basic size Max | Min | Tol. | (±) | (±minute) | ||
| GB-6H M6×1 | 6.000 6.023 6.001 | 0.022 | 5.350 5.3675 5.3565 | 0.011 | 0.005 | 15 | NB-6H M6×1 | 5.7055 5.7165 5.6945 0.022 | 5.500 5.511 | 5.500 | 0.011 | 0.005 | 16 |
| GP-6H M6×1 | 6.000 6.023 6.001 | 0.022 | 5.350 5.3675 5.3565 | 0.011 | 0.005 | 15 | NP-6H M6×1 | 5.7055 5.7165 5.6945 0.022 | 5.500 5.511 | 5.500 | 0.011 | 0.005 | 16 |
MILLS
DIES
CENTER
DRILLS
The pitch diameter is simple pitch diameter. Pitch tolerance includes error of thread lead.
Main specifi cation 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, Yamawa has adopted the name "Simple Inspection Tool or SITD" instead of using the name "thread gauge".