ONE–STEP CORE PINS – SHAFT DIAMETER (D) SELECTION / SHAFT DIAMETER TOLERANCE –0.01 –0.02 / 0
Standard
Standard
–0.005 TYPE –
E When exceeds the working limit of tip (ℓ) dimension,(Refer to the Step drawing lower right) c "Details of the tip (ℓ) short type" D posted on Web only E Products and sizes in green letters will be discontinued when the materials are out of stock.
0.01mm increments
0.1mm increments
Type
Part Number
High Speed Steel SKH51
M Material
H Hardness
H
L
F
ℓ max.
Shaft diameter tolerance D 0 −0.005 V/A Tolerance ± 0.015 V/A Tolerance ± 0.01 –0.01 −0.02 Shaft diameter tolerance D
Step Shape
A Vmin.
C
R
Type
Step Shape D min.
max.
min.
max.
1
15.00 20.00 25.00 30.00 35.00 40.00 45.00
Die Steel SKD61
Shaft diameter tolerance 0 −0.005 CPK– (1 ≦ D ≦ 16) CPG– (1 ≦ D ≦ 16) CPP– (1 ≦ D ≦ 20) CPH– (1 ≦ D ≦ 20) CPW– (1 ≦ D ≦ 16) CPY–
3 Shaft diameter tolerance −0.01 −0.02 CPN– (1 ≦ D ≦ 16) CPF– (1 ≦ D ≦ 16) CPD– (1 ≦ D ≦ 20) CPX– (1 ≦ D ≦ 20) 4 5 6 7 8
CPN–
CPK–
NAK80 37–43HRC
1.5
0.50
Designation is unnecessary when tip processing is not required C
100.00
2
Not processed
CPF–
CPG–
DH2F 38–42HRC
1A
2.5
NAK80
1A 1B 1C 1D 1E
Only Step 1D designated
Only Step 1E designated
CPD–
CPP–
SKD61 48–52HRC
3
0.70
C G T R B
3.5
CPX–
CPH–
SKH51 58–60HRC
1B
D ＞ A ≧ V
DH2F
L– ℓ min.
4
120.00
1.00
D–A 2
CPW–
C ＜
SUS440C 56–60HRC
–
4.5
10.00
12.00
5
D–A 2
E ℓ min. Refer to the Step drawing
Step 1A D ＞ V
CPA–
CPY–
MAS1C 50–54HRC
R ≦
1C
and ※ 0.1 ≦ C ≦ 4.0 ※ When CVC code is used 0.50 ≦ CVC ≦ 1.00
5.5
1.50
Pre-hardened Steel Pre-hardened Steel
9
CPTH–
CPEH–
50–54HRC
G
6
No designation necessary for A
and R ≧ 0.2
E is a registered trademark of UDDEHOLM TOOL CO. E PROVA400 is equivalent to SUS420J2 upgrading steel from Fujikoshi. Features D P.329
PROVA400 Pre-hardened Steel
120.00 CPH– only 150.00
6.5 7
CPQH–
CPRH–
PROVA400 50–54HRC
1D
10
T
CPA– (1 ≦ D ≦ 2.5) CPTH– (3 ≦ D ≦ 16) CPQH– (1 ≦ D ≦ 16)
50.00
E When Step 1E, A tolerance is ± 0.02
(1 ≦ D ≦ 2.5) CPEH– (3 ≦ D ≦ 16) CPRH– (1 ≦ D ≦ 16)
2.00
8
11 15 18 21 25
Stainless Steel SUS440C
R
Step type selected from 1A–1E below
Shape (Tip shape: V is a dimension before tip processing.)
10 13 16
1E
R ≦ 0.3
No need to designate Shape if no tip processing is required
(Not processed)
1A
B
Shape Select a tip shape from the drawings on the right
MAS1C
28.00
5.00
20 30.00
α＝ 0
Part Number – L – F – A – V – C/R – Tip size (K/S/G/Q) CPF–1BR6 – 46.00 – F38.00 – A5.00 – V3.00 – Q1.0 CPX–1DG6 – 50.00 – F40.00 – A5.10 – V3.00 – C0.3 – K40 CPW–1ET4 – 42.00 – F35.00 – A3.20 – V3.10 – R0.4 – K35 – S1.0
4mm
Order
＋ 0.02 0
JIS (6/8mm)
T ＝ 4
0 － 0.02
L
＋ 0.05 0
ℓ
F
10mm
L
ℓ≧ 0 . 5 ＋α
C
(C chamfered)
0 . 5 ≦ G ＜ V / 2 Designation 0.1mm unit α＝ G θ＜ 45 °
Quotation Delivery
Free Designation
± 0.02
G
45 ° ± 30 ´
1B
R ≦ 0.3
R ≦ 0.2
Shape
θ
D (P) –0.01 –0.02 D (P) 0
Part Number – L – F – A – V(VC) – C(CVC) – R(RE) – Tip size (K/S/G/Q) – (KC/WKC … etc.) CPX–1EC6 – 50.00 – F40.00 – A5.00 – V3.10 – RE1.5 – G1.0 – HC8.0 CPP–1A 5 – 58.00 – F50.00 – V4.00 – NHC–23
–0.005
＋ 0.02 0
G
Alterations
L
D (P) 0
Alteration details D P.365
–0.003
T ＝ 4 0
－ 0.02
＋ 0.02 0
Alterations Code
Spec.
Alterations Code
Spec.
ℓ
G (Cone)
F
Total Length Designation
Head thickness change TC = 0.1mm increments E 1.5 ≦ TC ＜ 4 (Dimensions L and F remain unchanged) E 4–TC ≦ Lmax.–L
L
ℓ≧ 0 . 7 ＋α
Single flat cutting D/2 ≦ KC < H/2
± 30 ´ K °
KC
TC
0
θ
Shaft Diameter / Total Length Designation Free Designation
KC － 0.01 0
TC
－ 0.02
Designation 0.1mm unit 20 ＜ K ≦ 60 α＝ 2tanK V
R ≦ 0.3
R ≦ 0.2
4
1C
Shape
Ks ＝ 45 ° ± 30 ´
About Designation Unit for Key Flat Cutting
θ＜ K
TRN Relief under the head
WKC Two flats cutting D/2 ≦ WKC ＜ H/2
(Makes plate chamfering unnecessary)
0 － 0.01
0 － 0.1
WKC
L
TiCN Coating
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
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 Changes R (normally 0.2 or less) to R0.3–0.5 (Strength has been improved) Designation method RR E Step Available for 1B/1C/1D E D–A ≧ 1.0 Step When 1D, C ≧ 0.5 Standard Ks = 45° can be specified as an angle AC = 1° increment E Available for Step 1C/1D E 30 ≦ AC ≦ 60 X Combination with CVC/RR not available E Step When 1D, C ≦ 1.0, A + 2 (C × tanAC) ＜ D C dimension can be designated at 0.01 mm increments E 0.50 ≦ CVC ≦ 1.00 E Available for Step 1D E CVC ＜ (D–A)/2 X Combination with AC not available
KAC KBC
A15
Two Step Shape
NHC
－ 0.01 KBC 0
－ 0.01 0
2 D ー A ℓ≧ When AC alteration is used
T
(Tapered)
T ＝ 4 － 0.02 0
KAC
＋ 0 . 5 ＋α
8
S ± 0.02
V 2tanK
0 . 1 ≦ S ＜
＋ 0.02 0
(1) To align the key flat with the shaft diameter Unit of designation 0.05mm increments possible
ℓ
F
θ
± 30 ´ K °
RR
2tanAC D ー A ℓ≧ ＋
Designation 1° unit 10 ≦ K ≦ 45 α＝ S θ＜K Designation 0.1mm unit
L
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
0 . 5 ＋α
RKC
RR
RKC － 0.01 0
R ≦ 0.3
1D
C ± 0.05
C
Shape
R ≦ 0.2
AC °
Ks ＝ 45 ° ± 30 ´
＋ 0.02 0
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
R ≦ 0.2
AC
L
0 － 0.01
DKC
DKC
R
(R chamfered)
CVC ± 0.02
Designation 0.1mm unit 0 . 2 ≦ Q ＜ V / 2 α＝ Q
45 °
Four flats cutting D/2 ≦ SKC ＜ H/2
SKC
CVC
(2) To designate
－ 0.01 SKC 0
Q ± 0.1
T ＝ 4
0
arbitrary key flat dimensions Unit of designation 0.1mm
－ 0.02
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 0 ＜ AG ＜ 360 AG = 1° increments
＋ 0.02 0
ℓ≧ C ＋ 0 . 5 ＋α
ℓ
F
D
Vmin.
VCmin.
0 °
KGC
1–1.5 3.5–4
0.50 1.00 1.50 2.00 5.00
0.40 0.70 1.00 1.50 4.00
Vmin. is enlarged VC = 0.01mm increments E ℓ ≦ A × 5, ℓ ≦ 50 (D × 5 for Step 1A) E D ＞ A ≧ VC
Q
2 D ー A
L
1C Step
C ＝
KGC
5.5
＋ 0.02 0
VC
6–10
L
120 ° 120 °
R
± 0.1
20
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
R ≦ 0.3
1E
－ 0.01 120 ° 0
Shape
X Regarding D = 2–3/4/5/5 and 13–16, Vmin. is the machining limit and VC cannot be used
KTC
KTC
SR B (Spherical processed)
Head diameter change HC = 0.1mm increments E D ≦ HC ＜ H
R shape alteration (enlargement) RE = 0.5mm increments E 0.5 ≦ RE ≦ 2.0 E F tolerance is + 0.05 0 . E Available for Step 1E
HC
RE
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
α＝ V / 2
T ＝ 4 0
ℓ≧ R ＋ 0.5 ＋α A tolerance is ± 0.02.
－ 0.02
＋ 0.02 0
ℓ
GS 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 E For details of "Steps–Type Round Core Pins (Gas Release)" which is a product similar to alteration GVC, D refer to Misumi–VONA F GB GVC
F
Head diameter change (precision) HCC = 0.1mm increments E D + 0.5 ≦ HCC ＜ H–0.3
0 － 0.1 L
HCC
L
(Calculation of tip gradient θ D P.1193 )
E Refer to the Shape drawing for L tolerance
367
368
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