Общий каталог Yamawa 2022 - 2023 - страница 687

Special Thread Taps / Simple Inspection Tools
Overall
length
L
Thread
length
ℓ
Shank
dia.
Ds
Size of
square
K
Length of
square
ℓk
⑦
JIS
SL Tr


Spiral Fluted Taps
(for blind hole)
①
JIS Spiral Flute Tap for Through Hole for Trapezoidal Threads


Spiral Fluted Taps
(for through hole)
②
Specification ■The SL Tr is a spiral flute tap for through hole
trapezoidal threads. The thread angle is 30°
. The
thread symbol is represented by Tr.


Spiral Pointed Taps
(for through hole)
③
Recommended Tapping Speeds depending on Materials
Low carbon steels Medium carbon steels
低炭素鋼 中炭素鋼
〜
5 〜
5


Hand Taps
( m / min ) ( m / min )


④
TYPE：1


Cemented
Carbide Taps
⑤
Segment：1S
L ℓ Ds K ℓk No. of


Roll Taps
Size Code Chamfer TYPE MSRP
flutes


⑥
(mm) (mm) (mm) (mm) (mm)
For Trapezoidal threads
Tr 10 × 2 LYT10Q0HEB 26P 160 70 7.8 6 9 3 1 ¥47,600 ※
Tr 12 × 3 LYT12S0HEB 23P 190 95 9 7 10 3 1 ¥63,000 ※
Tr 12 × 2 LYT12Q0HEB 30P 170 80 9 7 10 3 1 ¥63,000 ※


Special Thread Taps
Simple Inspection Tools
Tr 14 × 3


⑦
LYT14S0HEB 23P 190 95 11 9 12 3 1 ¥78,300 ※
Tr 16 × 4 LYT16U0HEB 22.5P 220 120 12 9 12 3 1 ¥94,400 ※
Tr 16 × 3 LYT16S0HEB 25P 200 100 13 10 13 3 1 ¥94,400 ※
Tr 18 × 4 LYT18U0HEB 22.5P 220 120 14 11 14 4 1 ¥118,000 ※
Tr 20 × 4 LYT20U0HEB 24.5P 230 130 16 12 15 4 1 ¥137,000 ※

Pipe Taps
⑧
Tr 22 × 5 LYT22W0HEB 22P 250 150 18 14 17 4 1 ¥159,000 ※
Tr 24 × 5 LYT24W0HEB 24P 260 160 19 15 18 4 1 ¥181,000 ※
Tr 25 × 5 LYT25W0HEB 25P 270 170 20 15 18 4 1 ¥195,000 ※
Tr 26 × 5 LYT26W0HEB 27P 280 180 21 17 20 4 1 ¥207,000 ※
Thread Mills
Premium Thread Mills

Tr 28 × 5 LYT28W0HEB 28P 290 190 22 17 20 4 1 ¥232,000 ※
⑨
Tr 30 × 6 LYT30Y0HEB 25P 300 200 24 19 22 4 1 ¥253,000 ※
■The specifications of Tr threads and TM threads
TM screws have become the old JIS 30 degree trapezoidal thread
●TM thread specifications.
standard, but they have already been abolished. The TM thread specifications specify only basic sizes
Dies


Currently, it is the standard for Tr screws (Metric trapezoidal screws). for major diameters, pitch diameters, and minor
⑩


diameters as shown in the table below.
●Tr thread specifications. “Dimensional tolerances”necessary for actual
The Tr thread specifications clearly specify tolerances for major diameters, pitch machining were normally discussed and determined
diameters, and minor diameters as shown in the table below. between the client and contractor.
<Tr thread specifications> Engagement length: N, Tolerance class: 7H Unit：mm ＜TM thread specifications＞ Unit：mm
Center Drills
Centering Tools


Major Diameter Pitch Diameter Minor Diameter Major Pitch Minor
⑪


Size Size
Dmax Dmin Dmax Dmin TD2 Dmax Dmin TD1 Diameter Diameter Diameter
Tr 10 × 2 10.500 9.250 9.000 0.250 8.236 8.000 0.236 TM 10 × 2 10.500 9.000 8.500
Tr 14 × 3 14.500 12.800 12.500 0.300 11.315 11.000 0.315 TM 14 × 3 14.500 12.500 11.500
Not
Tr 20 × 4 20.500 18.355 18.000 0.355 16.375 16.000 0.375 TM 20 × 4 20.500 18.000 16.500
specified
Tr 22 × 5 22.500 19.875 19.500 0.375 17.450 17.000 0.450 TM 22 × 5 22.500 19.500 18.000
Tr 30 × 6 31.000 27.450 27.000 0.450 24.500 24.000 0.500 TM 30 × 6 30.500 27.000 25.000
JIS
※ = Specified Distribution Items. Made to order products. ⑦-42