TAPERLESS ONE–STEP CORE PINS (NO DRAFT ANGLE CORE PINS) –SHAFT DIAMETER (P) 0.01mm DESIGNATION TYPE–
Standard
0.01mm increments
0.1mm increments
Part Number
M Material H Hardness
Part Number
High Speed Steel SKH51
H
L
F
A
ℓ max.
min.Pmax.
C
R
Type
Step
Shape
Type Step Shape No. min.
max.
min.
max.
min. max.
1
0.80–0.99 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
Die Steel SKD61
SKD61 48–52HRC
3
CPPBS–
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
CPHBS–
3
0.70
Only Step D is designated
Only Step E is designated
CPPBS–
C
3.5
7
DH2F
B C D E
120.00
4
NAK80 37–43HRC
1.00
CPKBS–
L – ℓmin. E ℓmin. Refer to Step drawing
CPHBS–
4.5
G
P−A 2
P−A 2
ℓ ≦ 10 × A and ℓ ≦ 35
8
C ＜
R ≦
10.00
5
12.00
P ＞ A
CPKBS– (P ≦ 15.99) CPWBS– (P ≦ 15.99)
5.5
1.50
SUS440C 56–60HRC
Pre-hardened Steel
9
CPWBS–
and ※ 0.1 ≦ C ≦ 4.0 ※ When CVC code is used 0.10 ≦ CVC ≦ 1.00
T
and R ≧ 0.2
6
120.00
PROVA400 Pre-hardened Steel
6.5
10
7 8
R
Only CPHBS– 150.00
Select Step (step type) from B–E figures shown below
Shape (Tip shape)
2.00
11 15 18 21 25
Stainless Steel SUS440C
10 13 16
B
10.00–12.99 13.00–15.99
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
16.00–19.99 28.00
5.00
E Step E is No.1 (P ≧ 0.90)–
4mm
Part Number – L – P – F – A – C/R – Tip size (K/S/G/Q) CPPBS– BS4 – 45.55 – P3.98 – F40.00 – A3.50 CPHBS– CC6 – 52.30 – P5.56 – F42.50 – A4.60 – G1.0
＋ 0.02 0
Order
α= 0
L
JIS (6/8mm)
CPWBS– DG5 – 48.62 – P4.77 – F37.55 – A4.00 – C0.2 – K30 CPKBS– ER6.5 – 55.65 – P6.23 – F42.35 – A4.50 – R0.5 – Q0.5
T = 4
0
－ 0.02
10mm
＋ 0.02 0
ℓ
C (C chamfering)
F
Free Designation
L
± 0.02 G
Quotation Delivery
45 ° ±
E ℓ ≧ 0.4 ＋α
30 ′
D (P) –0.01 –0.02 D (P) 0
C
0.1 ≦ G ＜ A/2 0.1mm increments α = G
K/S/G/Q – (KC/WKC … etc.)
Part Number – L – P – F – A (AAC) – C(CVC)/R(RE) –
R ≦ 0.1 （ When AC code is used R ≦ 0.2 ）
Shape
R ≦ 0.3
＋ 0.02 0
Alterations
–0.005
–
– KC3.0–TC3.0
C0.5 C0.3
G0.5
CPPBS–DC6 – 65.00 – P5.75 – F55.00 – A3.50 – CPHBS–DS5 – 50.00 – P4.89 – F38.00 – A2.00 –
L
– TRN
Alteration details D P.365
Ks = 45 °
± 30 ′
D (P) 0
–0.003
Alterations Code
Spec.
Alterations Code
Spec.
G (Cone)
Head thickness change TC = 0.1mm increments E 1.5 ≦ TC ＜ 4 (Dimensions L and F remain unchanged) E 4–TC ≦ Lmax.–L
Total Length Designation
Single flat cutting P/2 ≤ KC < H/2
KC
0
TC
KC － 0.01 0
TC
－ 0.02
Shaft Diameter / Total Length Designation Free Designation
4
± 30 ′ K °
T = 4
－ 0.02 0
P−A
E ℓ ≧
2 + 0.3 +α
20 ＜ K ≦ 60 1° increments α= A 2tanK
＋ 0.02 0
Two flats cutting P/2 ≤ WKC < H/2
TRN Relief under the head
WKC
ℓ
F
When AC code is used
0 － 0.01
(No need for plate chamfering)
WKC
About Designation Unit for Key Flat Cutting
－ 0.05 L 0
P−A 2tanAC° ＋ 0.3 ＋α
L
ℓ ≧
TiCN Coating
Varied width parallel flats cutting P/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 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 = 0.01mm increments E Available for Step D X Combination with AC not available
KAC KBC
－ 0.01 KBC 0
－ 0.01 0
A15
KAC
NHC
D
Two Step Shape
(1) To align the key flat with the shaft diameter
T (Tapered)
R ≦ 0.1 R ≦ 0.1 When AC code is used R≦0.2 When AC code is used R≦0.2
8
R ≦ 0.3
Shape
C ± 0.05
Ks = 45 °
± 0.02 S
± 30 ′
0.1 ≦ S ＜ A 2tanK 0.1mm increments 0 ＜ K ≦ 45 1° increments α= S
Two flats (right angled) cutting P/2 ≤ RKC < H/2
Unit of designation 0.005mm unit is allowed
RKC
K °
C
± 30 ′
RKC － 0.01 0
RE
＋ 0.02 0
DKC Three flats cutting P/2 ≦ DKC ＜ H/2
CVC ± 0.02
45 °
L
CVC
0 T = 4 － 0.02
0 － 0.01
DKC
DKC
＋ 0.02 0
ℓ
F
R (R chamfering) Q
AAC
P−A 2
(2) When designating arbitrary Key flat dimensions
Four flats cutting P/2 ≤ SKC < H/2
No.
A min.
AAC min.
E C =
⇨ Step C
SKC
L
－ 0.01 SKC 0
1–1.5 3.5–4
0.50 1.00 1.50 2.00
0.40 0.70 1.00 1.50
Extends the working limit of A min. E AAC = 0.01mm increments E ℓ ≦ 10 × AAC E CPKBS is available when P ≧ 3.00
E ℓ ≧ C + 0.3 +α
± 0.1
5.5
AG °
6–16
Two flats (angled) cutting P/2 ≦ KGC ＜ H/2 0 ＜ AG ＜ 360 AG = 1° increments
± 0.5
Unit of designation 0.1mm
20 4.00 X In case of No. = 2–3, 4.5 and 5, Amin. is the machining limit, and AAC cannot be used. 5.00
E
0 °
0.2 ≦ Q ＜ A/2 0.1mm increments α = Q
KGC
R ≦ 0.3
KGC
± 0.1 R
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 X Combination with CVC not available E Step When D, C ≦ 1.0 ， A + 2 (C × tanAC° ) ＜ P 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
Three flats cutting at 120° P/2 ≦ KTC ＜ H/2
－ 0.01 120 ° 0
AC °
KTC
AC
B (Spherical processed)
KTC
SR ＝ A/2
Head diameter change HC = 0.1mm increments E P ≦ HC ＜ H E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
－ 0.02 T = 4 0
HC
GVC
＋ 0.02 0
GS
ℓ
F
F GB
0 － 0.05 L
E P ≧ 0.90 E ℓ ≧ R + 0.3 +α
L
α= A/2
Head diameter change (precision) HCC = 0.1mm increments E P + 0.5 ≦ HCC ＜ H–0.3
E For details of "Steps–Type Round Core Pins (Gas Release)" which is a product similar to alteration GVC, D refer to Misumi–VONA
HCC
381
382
E Refer to the Shape drawing for L tolerance
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