TAPERLESS ONE–STEP CORE PINS (NO DRAFT ANGLE CORE PINS) –SHAFT DIAMETER (D) SELECTION TYPE–
Standard
0.01mm increments
0.1mm increments
Part Number
M Material H Hardness
Part Number
High Speed Steel SKH51
ℓ max.
H
L
F
A
Type
Step
Shape
C
R
Type
Step Shape D min.
max.
min.
max.
min.
max.
1
Die Steel SKD61
SKD61 48–52HRC
3
CPPS–
S C G T R B
1.5
0.50
2
100.00
4 5 6
S
B C D E
2.5
NAK80
SKH51 58–60HRC
CPHS–
Only Step D is designated
Only Step E is designated
3
0.70
CPPS–
C
3.5
7
L– ℓ min.
DH2F
B C D E
4
120.00
NAK80 37–43HRC
1.00
CPKS–
CPHS–
ℓ ≦ 10 × A and ℓ ≦ 35
4.5 5 5.5
D−A 2
G
R ≦
8
D−A 2
C ＜
12.00
10.00
D ＞ A
E ℓmin. Refer to Step drawing
CPKS– (D ≦ 16) CPWS– (D ≦ 16)
1.50
120.00
SUS440C 56–60HRC
and R ≧ 0.2
Pre-hardened Steel
9
CPWS–
T
and ※ 0.1 ≦ C ≦ 4.0 ※ When CVC code is used 0.10 ≦ CVC ≦ 1.00
6
PROVA400 Pre-hardened Steel
6.5 7
10
R
CPHS only 150.00
2.00
8
11 15 18 21 25
Select Step (step type) from B–E figures shown below
Shape (Tip shape)
Stainless Steel SUS440C
10 13 16
B
B
S (Not processed)
R ≦ 0.3
R ≦ 0.1
MAS1C
Shape Select a tip shape from the drawings on the right
20 30.00
28.00
5.00
Part Number – L – F – A – C/R – Tip size (K/S/G/Q) CPPS– BS4 – 45.55 – F40.00 – A3.50 CPHS– CC6 – 52.30 – F42.50 – A4.60 – G1.0
4mm
Order
α= 0
＋ 0.02 0
L
JIS (6/8mm)
CPWS– DG5 – 48.62 – F37.55 – A4.00 – C0.2 – K30 CPKS– ER6.5 – 55.65 – F42.35 – A4.50 – R0.5 – Q0.5
T = 4
0
－ 0.02
10mm
＋ 0.02 0
C (C chamfering)
F
ℓ
Quotation Delivery
Free Designation
L
± 0.02 G
45 ° ±
E ℓ ≧ 0.4 ＋α
30 ′
D (P) –0.01 –0.02 D (P) 0
0.1 ≦ G ＜ A/2 0.1mm increments α= G
K/S/G/Q – (KC/WKC … etc.)
Part Number – L – F – A (AAC) – C(CVC)/R(RE) –
C
Alterations
CPPS–DC6 – 65.00 – F55.00 – A3.50 – CPHS–DS5 – 50.00 – F38.00 – A2.00 –
C0.5 C0.3
–
G0.5
– KC3.0–TC3.0
R ≦ 0.1 （ When AC code is used R ≦ 0.2 ）
–0.005
＋ 0.02 0
Shape
R ≦ 0.3
L
Alteration details D P.365
– TRN
D (P) 0
Ks = 45 °
Alterations Code
Spec.
Alterations Code
Spec.
± 30 ′
–0.003
Head thickness change TC = 0.1mm increments E 1.5 ≦ TC ＜ 4 (Dimensions L and F remain unchanged) E 4–TC ≦ Lmax.–L
G (Cone)
Single flat cutting D/2 ≦ KC ＜ H/2
Total Length Designation
KC
0
TC
KC － 0.01 0
TC
－ 0.02
± 30 ′ K °
4
Shaft Diameter / Total Length Designation Free Designation
D−A 2
20 ＜ K ≦ 60 1° increments α= A 2tanK
+ 0.3 +α
E ℓ ≧
T = 4
－ 0.02 0
TRN Relief under the head
WKC Two flats cutting D/2 ≦ WKC ＜ H/2
(Makes plate chamfering unnecessary)
＋ 0.02 0
0 － 0.01
About Designation Unit for Key Flat Cutting
When AC code is used
WKC
－ 0.05 L 0
F
ℓ
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 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 E C dimension can be designated at 0.01mm increments E 0.10 ≦ CVC ≦ 1.00 E CVC = 0.01 mm increments E Available for Step D X Combination with AC not available
D−A 2tanAC°
+ 0.3 +α
ℓ ≧
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC < KBC < H/2
TiCN Coating
L
A15
NHC
KAC KBC
(1)To align the key flat with the shaft diameter Unit of designation 0.05mm increments possible
－ 0.01 KBC 0
－ 0.01 0
8
KAC
Two Step Shape
D
T (Tapered)
R ≦ 0.1 R ≦ 0.1 When AC code is used R≦0.2 When AC code is used R≦0.2
R ≦ 0.3
Shape
C ± 0.05
RE
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
RKC
± 0.02 S
Ks ＝ 45°
RKC － 0.01 0
0.1 ≦ S ＜ A 2tanK 0.1mm increments 0 ＜ K ≦ 45 1° increments α= S
± 30 ′
K °
± 30 ′
C
CVC ± 0.02
45 °
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
CVC
＋ 0.02 0
0 － 0.01
L
DKC
DKC
0 T = 4 － 0.02
＋ 0.02 0
D
A min.
AAC min.
Four flats cutting D/2 ≦ SKC ＜ H/2
R (R chamfering)
(2)To designate arbitrary key flat dimensions
Extends the working limit of A min. E AAC = 0.01mm increments E ℓ ≦ 10 × AAC E CPKS is available when D ≧ 3.5
SKC
D−A 2
F
ℓ
1–1.5 3.5–4
0.50 1.00 1.50 2.00
0.40 0.70 1.00 1.50
E C =
⇨ Step C
－ 0.01 SKC 0
L
Q
± 0.1
5.5
E ℓ ≧ C + 0.3 +α
AAC
6–16
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 0 < AG < 360 AG = 1° increments
20 4.00 X In case of D = 2–3, 4.5 and 5, Amin. is the machining limit and AAC cannot be used 5.00
Unit of designation 0.1mm
0 °
KGC
E
0.2 ≦ Q ＜ A/2 0.1mm increments α= Q
KGC
R ≦ 0.3
R ± 0.1
Shape
＋ 0.02 0
L
120 ° 120 °
Standard Ks = 45° can be specified as an angle AC = 1° increments E Available for Step C / D E 30 ≦ AC ≦ 60 E Step For D: C ≦ 1.0 ， A + 2 (C × tanAC°) ＜ D
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
－ 0.01 120 ° 0
AC °
KTC
AC
X Combination with CVC not available
KTC
B (Spherical processed)
Head diameter change HC = 0.1mm increments E D ≦ HC ＜ H E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
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
SR ＝ A/2
HC
GVC
－ 0.02 T = 4 0
GS
F GB
＋ 0.02 0
F
ℓ
E For details of "Steps–Type Round Core Pins (Gas Release)" which is a product similar to alteration GVC D refer to Misumi–VONA
Head diameter change (precision) HCC = 0.1mm increments E D + 0.5 ≦ HCC ＜ H–0.3
0 － 0.05 L
L
α= A/2
HCC
E ℓ ≧ R + 0.3 +α
369
370
E Refer to the Shape drawing for L tolerance
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