High Speed Steel SKH51
P/W 0 –0.01 Total Length Designation
RECTANGULAR EJECTOR PINS – L DIMENSION DESIGNATION TYPE –
With R
Part Number – L – P – W – R – N – (AKC/AWC … etc.) ERLFR 3 – 200.00 – P2.0 – W0.8 – R0.1 – N100 – AKC 0
High Speed Steel SKH51
Alterations
Quotation
Dies Steel SKD61 + Nitrided
Alteration details D P.167
Alterations
Code
Spec.
Alterations
Code
Spec.
Key flat cutting (angled) AKC = 1° increments E 0 ≦ AKC < 360 E When combined with KSA/WSA, 90° increments only. Two parallel flats cutting (angled) AWC = 1° increments E 0 ≦ AWC < 360 E When combined with KSA/WSA, 90° increments only. Two right angled flats cutting (angled) ARC = 1° increments E 0 ≦ ARC < 360 E When combined with KSA/WSA, 90° increments only. Three flats cutting (angled) ADC = 1° increments E 0 ≦ ADC < 360 E When combined with KSA/WSA, 90° increments only.
0 °
0 °
Head diameter change HC = 0.1mm increments E D + 1 ≦ HC < H
4mm
HC
AKC
270 °
90 °
JIS (6/8mm)
180 °
Part Number
T P/W Tolerance
Head Thickness
Head diameter change (precision) HCC = 0.1mm increments E D + 1 ≦ HCC < H–0.3
0 °
Top surface 2 places R 4 places R ERLWR ERLFR
0 °
HCC
ERLWR
ERLFR
P/W 0
0 –0.01
AWC
–0.01
4mm (T4)
270 °
90 °
(Top surface 2 places R)
(R in 4 places)
20
180 °
P/W 0
Head thickness change TC = 0.1mm increments E 2.0 ≦ TC < 4 E Dimension N becomes shorter by (4–TC). (Dimension L remains unchanged) E 4 – TC ≦ Lmax. – L Dowel hole boring NC = 90° increments E Available when H ≧ 4 X Combination with other than NHC/NHN/TMC not available Range of designation/Designation method/ Details of standards: D P.167 Dowel hole + Spring pin driving NCW = 90° increments E Available when H ≧ 4 X Combination with other than NHC/NHN/TMC not available Range of designation/Designation method/ Details of standards: D P.167 Numbering on the head Range of designation/Designation method: D P.168 Automatic sequential numbering on the head Range of designation/Designation method: D P.168
（ D ≦ 2 R ≦ 0.3 ） R ≦ 0.5
–0.02
(R machining range)
0 °
Step R
0 °
± 0.01 R
± 0.01 R
4 － ± 0.01 R
TC
0 － 0.02 TC
P/W 0
–0.005
ARC
270 °
90 °
4
P/W 0
180 °
–0.003
0 － 0.01
－ 0.01 0
0 － 0.02
0 °
0 °
0 °
T ＝ 4
P
P
0 °
Standard size
＋ 5 0
P ≧ W
2 2 W ＋ K P ＝ (Dimension before R-machining)
0 － 5
（ L － N ）
ADC
NC
N
270 °
90 °
270 °
90 °
＋ 0.02 0
＋ 0.05 0
（ L ＞ 200
）
Total Length Designation Free designation
180 °
L
180 °
L
M Material SKH51 H Hardness 58–60HRC Range of guaranteed retention diameter (D) precision/base material hardness/Step R (Details D P.165 )
0 °
Two flats cutting (angled) KGA = 1° increments E 0 < KGA < 360
KGA
E R ± 0.01 is the target value for machining. Adjustment with the mounting hole side is required.
90 °
270 °
0 °
0 °
N dimension short
180 °
NCW
Part Number
L 0.01mm increments
90 °
270 °
90 °
P
W
R
N
H T
Two flats cutting (angled) KGD = 1° increments E 0 < KGD < 360 E Pay attention to the standard position of 0°.
Type
D
0 °
180 °
Angular pin
60.00–100.00 100.01–150.00 60.00–100.00 100.01–150.00 150.01–200.00 60.00–100.00 100.01–150.00 150.01–200.00 60.00–100.00 100.01–150.00 150.01–200.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00 60.00–100.00 100.01–150.00 150.01–200.00 200.01–250.00
40 50 60
KGD
180 °
0.8 1.0 1.2 0.3 0.4 0.5 0.6
1.5
3
50 60 70 80 90
D/2
40 50 60
Rectangular R dimension
270 °
2
1.0 1.2 1.5
0.4 0.5 0.6 0.7 0.8
1.0
50 60 70 80 90 100
4
60 70 80
5 2 3
NHC
Shoulder cutting (1 plate) KSA = 0.1mm increments E W/2 + 0.1 ≦ KSA ≦ D/2–0.1
Tip process
40 50 60
5
KSA
2.5
50 60 70 80 90
0.4 0.5 0.6 0.7 0.8
1.0 1.2
1.5 2.0
5
60 70 80 90 100
Caulking type
40 50 60
1
2
3
3
50 60 70 80 90
2.0 2.5
0.4 0.5 0.6 0.7 0.8
1.0 1.2
6
NHN
Shoulder cutting (2 parallel plates) WSA = 0.1mm increments E W/2 + 0.1 ≦ WSA ≦ D/2–0.1
60 70 80
100 120
0.1
WSA
Rectangular shank
40 50 60
50 60 70 80 90
2.5 3.0
0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.5
3.5
60 70 80 90 100
D shaped
Lapping on the tip face X Not available for L–N ≦ 31
80
100
TMC
7
L
40 50 60
ERLWR (Top surface 2 places R)
Blade edge shape
0.15
50 60 70 80 90
4
3.0 3.5
0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.5
60 70 80 90 100
80
100
CSW, CSF: Range of designation W CSW, CSF 1.0 ≦ W < 1.5 0.3
R 2 － CSW (C recess processing at 2 points on top)
40 50 60 70
C chamfering processing at 2 points on top (except tip) for relief is performed. Designation method CSW1 – E25
50 60 70 80 90
3.5 4.0
0.6 0.7 0.8 0.9 1.0 1.2 1.5 1.8
4.5
60 70 80 90 100
0.2
90 100 120
CSW
8
0.5 1 1.5
40
50 50
60 70
4
W ≧ 1.5
60 70 80 90
5
4.0
0.6 0.7 0.8 0.9 1.0 1.2 1.5 1.8 2.0
60 70 80 90 100
＋ 5 0
P
(C processing range)
100 120
E
N
E P ≧ 1.5 E CSW, CSF < W/2 E = 1mm increments E 5 ≦ E ≦ (L–N)–20 E R process range D P.168 E RC processing is
40
50 50
60 70
0.3
60 70 80 90
4.5 5.0
0.8 0.9 1.0 1.2 1.5 1.8 2.0
5.5
60 70 80 90 100
ERLFR (4 places R)
(C recess at 4 points)
100 120
C chamfering processing at 4 points (except tip) for
9
4 － CSF
40
50 50
60 70
R
60 70 80 90
6
5.0
0.8 0.9 1.0 1.2 1.5 1.8 2.0
CSF
relief is performed. Designation method CSF0.5 – E30
60 70 80 90 100
R ≦ W –
70 80 90 100 120
2 –0.05
prioritized when combining with RC.
40
50 50
60
＋ 5 0
60 70 80 90 100
P
(C processing range)
6.0 7.0
0.8 0.9 1.0 1.2 1.5 1.8 2.0 2.5
8
11
E
N
70 80 90 100 120
80 90 100 120 150
Designate the length of R processed part 5 ≦ RC ≦ (L–N)–30 and RC ≦ 40 RC = 1mm increments Designation method RC25 E Adds RC recess processing at all places R processed.
40
50 50
60
60 70 80 90 100
10
8.0
1.0 1.2 1.5 1.8 2.0 2.5
15
60 70 80 90 100 120
RC
90 100 120 150
40
60
P
60 70 80 90 100
N
RC
12
10.0
1.2 1.5 1.8 2.0
17
70 80 90 100 120
80 90 100 120 150
2 –0.05. E L–N ≧ 20
E Select the R dimension within the range of R ≦ W –
① In case of divisions Cavity core
② In case of wire through hole Cavity core
Select the R size to suit for the corner R on the wire cut caused by cavity core processing, etc.
Precision Standard
PartNumber– L – P – W – R – N ERLFR3 – 200.00 – P2.0 – W0.8 – R0.1 – N100
Example
Order
Pmin. Pmax.
R-chamfered E pin
R-chamfered E pin
Squareness of the tip corner
W plane as the base (Pmax.–Pmin.) ≦ 0.02
Quotation
Cavity core
Delivery
≦ 0.03 (deburring R) E Corner R value outside R processing range The tip corners have been slightly trimmed to measure the P/W dimensions. (Details D P.166 )
Rmax. Rmax.
Corner R value of the tip corner
181
182
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