TWO–STEP CORE PINS –SHAFT DIAMETER (P) 0.01mm DESIGNATION / SHAFT DIAMETER TOLERANCE –0.01 –0.02 TYPE–
Standard
E Products and sizes mentioned in green letters will be discontinued after materials go out of stock.
0.01mm increments
0.1mm increments
Part Number
Part Number
High Speed Steel SKH51
H
L
ℓmax.
Material code
M Material H Hardness
min. P max.
F Y A V
J Emin.
C R G Q
Step 2
Step 1
min. max.
Step1 Material Step2 No.
1.5
1.00– 1.49 1.50– 1.99 2.00– 2.49 2.50– 2.99 3.00– 3.49 3.50– 3.99 4.00– 4.49 4.50– 4.99 5.00– 5.49 5.50– 5.99 6.00– 6.49 6.50– 6.99 7.00– 7.99 8.00– 9.99 10.00–12.99 13.00–15.99
0.50
3 4 5 6
20.00 25.00 30.00 35.00 40.00 45.00
Die Steel SKD61
NAK80 37–43HRC DH2F 38–42HRC SKD61 48–52HRC SKH51 58–60HRC MAS1C 50–54HRC
NB
2
0.70
2.5
100.00
CA CB CC CD CE
A B C D E
NB FB
CA CB CC CD CE
A B C D E
3
NAK80
FB
3.5
1.00
7
Only Step1 CD is designated 0.1 ≦ C ≦ 1.0 and C ＜ P–A 2
Only Step1 CE is designated R ≧ 0.2 and R ≦ P–A 2
Only Step2 D is designated 0.1 ≦ G ≦ 0.5 and G ＜ V–J 2
Only Step2 E is designated Q ≧ 0.2 and Q ≦ V–J 2
A ≧ V ＞ J
V ＞ J ≧ E
P ＞ A ≧ V Step1 When CA is selected, no designation is necessary for A
Refer to the working limits shown in the standard drawing
4
DB
DH2F
4.5
DB XB AB (P ≦ 2.49)
8
Step1 When CA is
5
1.50
F ≧ 10.00
12.00
5.5
XB
selected, P ＞ V ＞ J
9
6
Pre-hardened Steel
6.5
AB
10
PROVA400 Pre-hardened Steel
120.00
7 8
2.00
Step2 Designation of V ＝ E pos- sible when A is selected.
60.00
Step2 No need to designate J when A is selected
11 15 18 21
10 13 16
Step1 (shape for first step) select from CA–CE below
Step2 (shape for second step)
Stainless Steel SUS440C
2.50
T ＝ 4
－ 0.02 0
CA
R ≦ 0.3
(V ＝ E Designation Possible)
A
Step2 Select a step shape from the drawings on the right
DB XB
≧ 28.00
20 30.00
16.00–19.99 F
5.00
25
MAS1C
4mm
Order PartNumber– L – P – F – Y – A – V – J – E –C/R–G/Q CBFBB 6 – 62.10 – P5.55 – F42.00 – Y53.25 – A5.20 – V4.70 – J4.10 – E3.50 CDXBA 8 – 70.00 – P7.25 – F43.50 – Y55.32 – A5.00 – V4.50 – E4.00 – C0.5 CENBE 6 – 55.75 – P5.98 – F43.50 – Y48.76 – A5.00 – V4.80 – J3.80 – E3.00 – R0.4 – Q0.4
JIS (6/8mm)
＋ 0.05
ℓ
F 0
F ＋ 0 . 5 ≦ Y
0 ＋ 0.05
Y
Y
Y ＋ 0 . 5 ≦ L
10mm
＋ 0.02
L 0
Free Designation
Delivery Quotation
0 － 0.02
B
T ＝ 4
CB
R ≦ 0.3
Step2
R ≦ 0.2
R ≦ 0.2
D (P) –0.01 –0.02 D (P) 0
PartNumber– L – P – F – Y – A – V – J – E – C/R – G/Q –(KC/WKC … etc.) CEFBA5 – 56.50 – P4.80 – F48.00 – Y52.00 – A4.20 – V4.10 – E2.80 – R0.3 – RKC2.4
Alterations
–0.005
Alteration details D P.365
D (P) 0
–0.003
＋ 0.02
ℓ
Alterations Code
Spec.
Alterations Code
Spec.
F 0
0 ＋ 0.02
F ＋ 0 . 7 ≦ Y
Y
Y
Head diameter change HC = 0.1mm increments E P ≦ HC ＜ H
Total Length Designation
Y ＋ 0 . 7 ≦ L
Single flat cutting P/2 ≦ KC ＜ H/2
＋ 0.02
KC
L 0
KC － 0.01 0
HC
Shaft Diameter / Total Length Designation Free Designation
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
－ 0.02 0
T ＝ 4
CC
R ≦ 0.3
C
About designation unit for key flat cutting
Step2
Two flats cutting P/2 ≦ WKC ＜ H/2
R ≦ 0.2
WKC
Ks ＝ 45 °
Z ＝ 45 °
± 30 ´
± 30 ´
0 － 0.01
WKC
Head diameter change (precision) HCC = 0.1mm increments E P + 0.5 ≦ HCC ＜ H−0.3
HCC
TiCN Coating
Varied dimension flat cutting P/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
KAC KBC
－ 0.01 KBC 0
－ 0.01 0
KAC
F ＋ When AC alteration is used P － A ＋ 0 . 5 ≦ Y 2tanAC ° F ＋ P － A ＋ 0 . 5 ≦ Y 2
2tanAGC ° V － J Y ＋ When AGC alteration is used ＋ 0 . 5 ≦ L 2 V － J Y ＋ ＋ 0 . 5 ≦ L
Head thickness change TC = 0.1mm increments
Two Step Shape
(1)When specifying the key flat cutting accord- ing to shaft diameter Unit of designa tion 0.005mm increments possible
＋ 0.02
E 1.5 ≦ TC ＜ 4
ℓ
F 0
TC
0
TC
－ 0.02
(Dimensions L, Y, F remain unchanged) E 4–TC ≦ Lmax.–L Relief under the head (Makes plate chamfering unnecessary)
0 ＋ 0.02
R ≦ 0.2
Y
Y
4
Two flats (right angled) cutting P/2 ≦ RKC ＜ H/2
RKC
＋ 0.02
L 0
RKC － 0.01 0
TRN
Details of part ③
Details of part ①
D
0 － 0.02
T ＝ 4
R ≦ 0.3
CD
Step2
Three flats cutting P/2 ≦ DKC ＜ H/2
C ± 0.05
①
DKC
C
G ± 0.05
0 － 0.01
Numbering at the back part of the head Range of designation and Designation method: D P.365 E Available when H ≧ 2 X Combination with SKC not available
Ks ＝ 45 °
Z ＝ 45 °
± 30 ´
DKC
DKC
± 30 ´
R ≦ 0.2
A15
NHC
8
Four flats cutting P/2 ≦ SKC ＜ H/2
R ≦ 0.2
SKC
－ 0.01 SKC 0
R ≦ 0.2
Standard Ks = 45° can be specified as an angle AC = 1° increments E 30 ≦ AC ≦ 60 E Step1 When CD: A + 2 (C × tanAC) ＜ P Standard Z = 45° can be specified as an angle AGC = 1° increments E 30 ≦ AGC ≦ 60 E Step2 When D: J + 2 (G × tanAGC) ＜ V
AC °
(2)When designating arbitrary key flat dimensions Unit of designation 0.1mm
E Available for Step1 CC/CD
＋ 0.02
P － A 2
2 P ー A
ℓ
AC
F 0
AG °
± 0.5
C ＝
C ＜
CC Step1
Two flats (angled) cutting P/2 ≦ KGC ＜ H/2 0 ＜ AG ＜ 360 AG = 1° increments
③
0 ＋ 0.02
Y
0 °
C ≦ 1 . 0 F ＋ C ＋ 0 . 5 ≦ Y
KGC
Y
Y ＋ G ＋ 0 . 5 ≦ L
AGC °
＋ 0.02
L 0
KGC
E Step2 Available for C/D
AGC
Details of part ④
120 ° 120 °
T ＝ 4
0
E
R ≦ 0.3
Three flats cutting at 120° P/2 ≦ KTC ＜ H/2
－ 0.02
CE
Details of part ②
－ 0.01 120 ° 0
Step2
②
KTC
R ± 0.1
Gas vent machining GS/GB = 1mm increments E Available when P ≧ 2.00 E 2 ≦ GS ≦ 10 GS + 2 ≦ GB ≦ 30 Fmin. ≦ F−GB Range of designation and Designation method: D P.366
Q ± 0.1
KTC
GVC
GS
F GB
Q
P － A 2
＋ 0.02
ℓ
F 0
F ＋ R ＋ 0 . 5 ≦ Y 0 . 2 ≦ R ≦
0 ＋ 0.02
④
Y
Y
Y ＋ Q ＋ 0 . 5 ≦ L
＋ 0.02
L 0
E Refer to the Step2 drawing for Y tolerance
407
408
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