TWO–STEP CORE PINS –SHAFT DIAMETER (D) SELECTION / 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.
M Material H Hardness
Material code
F
Y A V
J Emin.
C R G Q
Step 2
Step 1
min.
max.
Step1 Material Step2 D
1
15.00 20.00 25.00 30.00 35.00 40.00 45.00
Die Steel SKD61
0.50
3
NAK80 37–43HRC DH2F 38–42HRC SKD61 48–52HRC SKH51 58–60HRC MAS1C 50–54HRC
N
1.5
2
4 5 6
CA CB CC CD CE
A B C D E
CA
A
N F D
0.70
100.00
2.5
NAK80
F
3
CB
B
A ≧ V ＞ J
V ＞ J ≧ E
D ＞ A ≧ V Step1 When CA is selected, no designation is necessary for A
3.5
1.00
7
Only Step1 CD is designated 0.1 ≦ C ≦ 1.0 and C ＜ D–A 2
Only Step1 CE is designated
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
D
DH2F
Refer to the work- ing limits shown in the standard drawing
4
CC
C
4.5
Step1 When CA is selected, D ＞ V ＞ J
8
F ≧ 10.00
5
1.50
12.00
X
X A (D ≦ 2.5)
CD
D
5.5 6 6.5 7
Pre-hardened Steel
9
R ≧ 0.2 and R ≦ D–A 2
A
PROVA400 Pre-hardened Steel
CE
E
10
Step2 Desig- nation of V ＝ E possible when A is selected.
Step2 No need to designate J when A is selected
120.00
2.00
60.00
8
11 15 18 21
Step1 (shape for first step) select from CA–CE below
Step2 (shape for second step)
Stainless Steel SUS440C
10 13 16
T ＝ 4 － 0.02 0
A
(V ＝ E Designation Possible)
CA
R ≦ 0.3
2.50
Select a step shape from the drawings on the right
Step2
MAS1C
D X
≧ 28.00
20 30.00
5.00
F
25
4mm
Order PartNumber– L – F – Y – A – V – J – E –C/R–G/Q CANA 5 – 56.50 – F48.00 – Y52.00 – V4.20 – E2.80 CCDD 5.5 – 49.95 – F35.00 – Y40.00 – A4.50 – V4.30 – J3.50 – E3.20 – G0.3 CENE 6 – 55.75 – F43.50 – Y48.76 – A5.00 – V4.80 – J3.80 – E3.00 – R0.4 – Q0.4
JIS (6/8mm)
0 ＋ 0.05
ℓ
F
F ＋ 0 . 5 ≦ Y
0 ＋ 0.05
Y
10mm
Y ＋ 0 . 5 ≦ L
Y
0 ＋ 0.02
L
Free Designation
B
T ＝ 4 － 0.02 0
CB
R ≦ 0.3
Step2
Delivery Quotation
R ≦ 0.2
D (P) –0.01 –0.02 D (P) 0
R ≦ 0.2
PartNumber– L – F – Y – A – V – J – E – C/R – G/Q –(KC/WKC … etc.) CEFA5 – 56.50 – F48.00 – Y52.00 – A4.20 – V4.10 – E2.80 – R0.3 – RKC2.5
–0.005
Alterations
D (P) 0
–0.003
Alteration details D P.365
0 ＋ 0.02
ℓ
F
F ＋ 0 . 7 ≦ Y
0 ＋ 0.02
Alterations Code
Spec.
Alterations Code
Spec.
Y
Y
Total Length Designation
Y ＋ 0 . 7 ≦ L
0 ＋ 0.02
Head diameter change HC = 0.1mm increments E D ≦ HC ＜ H
L
Single flat cutting D/2 ≦ KC ＜ H/2
KC
Shaft Diameter / Total Length Designation Free Designation
KC － 0.01 0
T ＝ 4 － 0.02 0
R ≦ 0.3
CC
HC
C
Step2
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
About designation unit for key flat cutting
R ≦ 0.2
Z ＝ 45 °
± 30 ´
Ks ＝ 45 °
± 30 ´
Two flats cutting D/2 ≦ WKC ＜ H/2
WKC
0 － 0.01
WKC
Head diameter change (precision) HCC = 0.1mm increments E D + 0.5 ≦ HCC ＜ H–0.3
TiCN Coating
HCC
Varied dimension flat cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
D － A ＋
KAC KBC
F ＋
0 . 5 ≦ Y
Two Step Shape
2tanAGC V － J Y ＋ When AGC alteration is used ＋ 0 . 5 ≦ L 2 V － J Y ＋ ＋ 0 . 5 ≦L
－ 0.01 KBC 0
－ 0.01 0
0 ＋ 0.02
KAC
2
ℓ
F
Head thickness change TC = 0.1mm increments
(1)When specifying the key flat cutting according to shaft diameter Unit of designation 0.05mm increments possible
R ≦ 0.2
E 1.5 ≦ TC ＜ 4
F ＋ When AC alteration is used D － A ＋ 0 . 5 ≦ Y 2tanAC
0 ＋ 0.02
Y
TC
Y
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
L
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
4
RKC
RKC － 0.01 0
Details of part ①
Details of part ③
T ＝ 4 － 0.02 0
R ≦ 0.3
D
TRN
CD
Step2
C ± 0.05
①
G ± 0.05
C
Three flats cutting D/2 ≦ DKC ＜ H/2
DKC
Z ＝ 45 °
Ks ＝ 45 °
R ≦ 0.2
± 30 ´
± 30 ´
0 － 0.01
DKC
DKC
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
A15
NHC
R ≦ 0.2
8
Four flats cutting D/2 ≦ SKC ＜ H/2
SKC
R ≦ 0.2
－ 0.01 SKC 0
0 ＋ 0.02
ℓ
Standard Ks = 45° can be specified as an angle AC = 1° increments E 30 ≦ AC ≦ 60 E Step1 When CD: A + 2 (C × tanAC) ＜ D 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
D － A 2
2 D ー A
AC °
F
C ＝
C ＜
CC Step1
(2)When designating arbitrary key flat dimensions Unit of designation 0.1mm
AG °
± 0.5
E Available for Step1 CC/CD
③
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 0 ＜ AG ＜ 360 AG = 1° increments
0 ＋ 0.02
AC
Y
C ≦ 1 . 0 F ＋ C ＋ 0 . 5 ≦ Y
Y
Y ＋ G ＋ 0 . 5 ≦ L
0 °
KGC
0 ＋ 0.02
L
KGC
AGC °
Details of part ④
120 ° 120 °
E Step2 Available for C/D
T ＝ 4 － 0.02 0
R ≦ 0.3
E
AGC
CE
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
Details of part ②
Step2
－ 0.01 120 ° 0
②
KTC
R ± 0.1
Q ± 0.1
KTC
Gas vent machining GS/GB = 1mm increments E Available when D ≧ 2 E 2 ≦ GS ≦ 10 GS + 2 ≦ GB ≦ 30 Fmin. ≦ F−GB Range of designation and Designation method: D P.366
GVC
GS
F GB
Q
0 ＋ 0.02
ℓ
D － A 2
F
0 . 2 ≦ R ≦
0 ＋ 0.02
④
Y
Y
F ＋ R ＋ 0 . 5 ≦ Y
Y ＋ Q ＋ 0 . 5 ≦ L
0 ＋ 0.02
L
E Refer to the Step2 drawing for Y tolerance
399
400
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