TWO–STEP CORE PINS –SHAFT DIAMETER (D) SELECTION / SHAFT DIAMETER TOLERANCE 0
Standard
–0.005 TYPE–
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
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
NAK80 37–43HRC DH2F 38–42HRC SKD61 48–52HRC SKH51 58–60HRC SUS440C 56–60HRC MAS1C 50–54HRC
3
K
1.5
2
4 5 6
CA CB CC CD CE
A B C D E
0.70
100.00
G
K G P H W Y (D ≦ 2.5)
CA CB CC CD CE
A B C D E
2.5
NAK80
3
P
1.00
3.5
V ＞ J ≧ E
D ＞ A ≧ V
A ≧ V ＞ J
7
Only Step1 CD is designated
Only Step1 CE is designated
Only Step2 D is designated
Only Step2 E is designated
DH2F
Refer to the work- ing limits shown in the standard drawing
4
120.00
H
4.5
8
Step1 When CA is selected, no designation is necessary for A
F ≧ 10.00
5
1.50
12.00
Step1 When CA is selected, D ＞ V ＞ J
W
5.5 6 6.5 7
Pre-hardened Steel
9
0.1 ≦ C ≦ 1.0 and C ＜ D–A 2
R ≧ 0.2 and R ≦ D–A 2
0.1 ≦ G ≦ 0.5 and G ＜ V–J 2
Q ≧ 0.2 and Q ≦ V–J 2
Y
PROVA400 Pre-hardened Steel
120.00 C □ H □ only 150.00
10
2.00
60.00
8
11 15 18 21
Step2 Desig- nation of V ＝ E possible when A is selected.
Step2 No need to desig- nate J when A is selected
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
(V ＝ E Designation Possible )
A
CA
R ≦ 0.3
2.50
Select a step shape from the drawings on the right
Step2
MAS1C
P H
F ≧ 28.00
20 30.00
5.00
25
4mm
Order PartNumber– L – F – Y – A – V – J – E –C/R–G/Q CAKA 5 – 56.50 – F48.00 – Y52.00 – V4.20 – E2.80 CCPD 5.5 – 49.95 – F35.00 – Y40.00 – A4.50 – V4.30 – J3.50 – E3.20 – G0.3 CEWE 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
0 ＋ 0.05
Y
10mm
Y
0 ＋ 0.02
F ＋ 0 . 5 ≦ Y
Y ＋ 0 . 5 ≦ L
L
Free Designation
T ＝ 4 － 0.02 0
B
CB
R ≦ 0.3
Delivery Quotation
Step2
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.) CEHA5 – 56.50 – F48.00 – Y52.00 – A4.20 – V4.10 – E2.80 – R0.3 – RKC2.5
–0.005
Alterations
D (P) 0
Alteration details D P.365
–0.003
0 ＋ 0.02
ℓ
F
Alterations Code
Spec.
Alterations Code
Spec.
0 ＋ 0.02
Y
Y
Total Length Designation
Head diameter change HC = 0.1mm increments E D ≦ HC ＜ H
0 ＋ 0.02
Single flat cutting D/2 ≦ KC ＜ H/2
F ＋ 0 . 7 ≦ Y
L
Y ＋ 0 . 7 ≦ L
KC
KC － 0.01 0
Shaft Diameter / Total Length Designation Free Designation
HC
T ＝ 4 － 0.02 0
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
R ≦ 0.3
CC
C
Z ＝ 45 °
± 30 ´
Step2
About designation unit for key flat cutting
R ≦ 0.2
Two flats cutting D/2 ≦ WKC ＜ H/2
WKC
Ks ＝ 45 °
± 30 ´
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
KAC KBC
D － A
－ 0.01 KBC 0
－ 0.01 0
KAC
Two Step Shape
F ＋
＋ 0 . 5 ≦ Y
R ≦ 0.2
0 ＋ 0.02
Head thickness change TC = 0.1mm increments E 1.5 ≦ TC ＜ 4 (Dimensions L, Y, F remain unchanged) E 4–TC ≦ Lmax.–L Relief under the head (Makes plate chamfering unnecessary)
0 ＋ 0.02
2
ℓ
F
Y
(1)When specifying the key flat cutting accord- ing to shaft diameter Unit of designation 0.05mm increments possible
TC
0
TC
－ 0.02
2tanAGC V － J Y ＋ ＋ 0 . 5 ≦ L When AGC alteration is used
When AGC alteration is used
Y
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
2 V － J Y ＋ ＋ 0 . 5 ≦ L
D － A
4
RKC
0 ＋ 0.02
F ＋
＋ 0 . 5 ≦ Y
L
RKC － 0.01 0
2tanAC
Details of part ①
TRN
T ＝ 4 － 0.02 0
R ≦ 0.3
Details of part ③
CD
D
C ± 0.05
①
Step2
Three flats cutting D/2 ≦ DKC ＜ H/2
DKC
C
G ± 0.05
Ks ＝ 45 °
0 － 0.01
R ≦ 0.2
± 30 ´
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 Standard Ks = 45° can be specified as an angle AC = 1° increments E Available for Step1 CC/CD 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 E Step2 Available for C/D 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
Z ＝ 45 °
± 30 ´
A15
NHC
8
Four flats cutting D/2 ≦ SKC ＜ H/2
R ≦ 0.2
SKC
－ 0.01 SKC 0
R ≦ 0.2
D － A 2
AC °
0 ＋ 0.02
C ＜
ℓ
(2)When designating arbitrary key flat dimensions Unit of designation 0.1mm
F
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 0 ＜ AG ＜ 360 AG = 1° increments
C ≦ 1 . 0 F ＋ C ＋ 0 . 5 ≦ Y 2 D ー A C ＝
AC
Y
③
0 °
0 ＋ 0.02
CC Step1
KGC
Y
0 ＋ 0.02
L
KGC
Y ＋ G ＋ 0 . 5 ≦ L
AGC °
120 ° 120 °
AGC
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
Details of part ②
Details of part ④
－ 0.01 120 ° 0
T ＝ 4 － 0.02 0
R ≦ 0.3
CE
E
KTC
Step2
②
R ± 0.1
KTC
Q ± 0.1
GVC
GS
F GB
Q
0 ＋ 0.02
ℓ
F
0 . 2 ≦ R ≦ D － A 2 F ＋ R ＋ 0 . 5 ≦ Y
④
0 ＋ 0.02
Y
Y
0 ＋ 0.02
Y ＋ Q ＋ 0 . 5 ≦ L
L
E Refer to the Step2 drawing for Y tolerance
397
398
Powered by FlippingBook