PRECISION TAPERLESS TWO–STEP CORE PINS(NO DRAFT ANGLE CORE PINS) –SHAFT DIAMETER (P) 0.005mm DESIGNATION TYPE–
Precision
0.01mm increments
0.1mm increments
Part Number
0.01mm increments 0.005mm increments
Part Number
High Speed Steel SKH51
ℓ max.
L
A
H
min. P max.
F Y V
X W C R
M Material H Hardness
Material code
Step1
Step2 Shape
min. max.
min. max.
Step1 Material Step2 Shape No.
1.000– 1.495 1.500– 1.995 2.000– 2.495 2.500– 2.995 3.000– 3.495 3.500– 3.995 4.000– 4.495 4.500– 4.995 5.000– 5.495 5.500– 5.995 6.000– 6.495 6.500– 6.995 7.000– 7.995 8.000– 9.995 10.000–12.995 13.000–15.995
1.5
0.50
3 4 5 6
Die Steel SKD61
2
S C G T R B
0.70
100.00
2.5
SKD61 48–52HRC
SZB
S
NAK80
CB CC CD CE
B C D E
3
3.5
1.00
7
CB
B
C
Only Step1 CD is designated 0.1 ≦ X ≦ 1.0 and X ＜ D–V 2
Only Step1 CE is designated W ≧ 0.2 and W ≦ D–V 2
Only Step2 D is designated
Only Step2 E is designated
DH2F
120.00
4
Refer to the working limits shown in the standard drawing
4.5
8
ℓ ≦ 10 × A and ℓ ≦ 35
CC
SZB
C
G
5
1.50
SKH51 58–60HRC
F ≧ 12.00
SVB
14.00
P ＞ V
V ＞ A
5.5
Pre-hardened Steel
V–A 2
V–A 2
C ＜
R ≦
9
6
CD
SVB
D
T
PROVA400 Pre-hardened Steel
120.00 Only for material SVB 150.00
and R ≧ 0.2
and 0.1 ≦ C ≦ 1.0
6.5
10
7 8
Step1 (shape for first step)
Step2 (shape for second step)
Shape (Tip shape)
CE
E
R
Stainless Steel SUS440C
2.00
11 15 18 21 25
CB
B
S (Not processed)
Step2
Shape
10 13 16
B
Select a step shape from the Step 2 drawings on the right
Select a tip shape from the Shape drawings on the right
R ≦ 0.3
R ≦ 0.1
MAS1C
R ≦ 0.1
α = 0
16.000–19.995 F ≧ 28.00
20 30.00
5.00
4mm
0 ＋ 0.01
L
Order Part Number – L – P – F – Y – V – A – X/W – C/R – Tip size (K/S/G/Q) CBSZBBS 3.5 – 40.00 – P3.310 – F20.50 – Y31.00 – V2.80 – A2.50 CCSVBCC 5 – 52.05 – P4.655 – F35.68 – Y44.00 – V3.85 – A3.35 – G0.5 CDSZBDG 6 – 58.42 – P5.885 – F42.00 – Y49.00 – V4.30 – A2.00 – X0.5 – C0.5 – K30 CESVBET 5.5– 60.50 – P5.330 – F40.10 – Y51.00 – V4.60 – A3.30 – W0.2 – R0.3 – K30–S1.0
JIS (6/8mm)
T ＝ 4
－ 0.02 0
ℓ
F Y L
＋ 0.01 0
10mm
⒧
F
C (C chamfering)
0 ＋ 0.01
Free Designation
Y
± 0.02 G
45 ° ± 30 ′
Quotation
L
Delivery
(Y–F) ≧ 0.4
(L–Y) ≧ 0.4 +α
D (P) –0.01 –0.02 D (P) 0
CC
C
0.1 ≦ G ＜ A/2 0.05mm increments α = G
Part Number – L – P – F (FC) – Y – V – A – X/W – C/R – Tip size (K/S/G/Q) – (KC/WKC … etc.) CBSVBDS6 – 88.50 – P5.810 – F65.00 – Y80.00 – V4.50 – A3.50 – C0.3 – WKC3.0
R ≦ 0.3
Step2 Shape
＋ 0.01 0
Alterations
–0.005
L
Ks ＝ 45 °
R ≦ 0.1
± 30 ′
Alteration details D P.365
Z ＝ 45 ° ± 30 ′
D (P) 0
–0.003
Alterations Code
Spec.
Alterations Code
Spec.
G (Cone)
Total Length Designation
TRN Relief under the head
Single flat cutting P/2 ≦ KC ＜ H/2
KC
KC － 0.01 0
K ° ± 30 ′
(Makes plate chamfering unnecessary)
T ＝ 4 － 0.02 0
ℓ R ≦ 0.1
Shaft Diameter / Total Length Designation Free Designation
ℓ
F Y L
＋ 0.01 0
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 30 ≦ AC ≦ 60 E Step1 Available for CC/CD E Step1 When CC is selected: Y–F ≧ (P–V)/2tanAC° + 0.3 E Step1 When CD is selected: V + 2 (X × tanAC°) ＜ P
F
20 ＜ K ≦ 60 1° increments α = A 2tanK
WKC Two flats cutting P/2 ≦ WKC ＜ H/2
A15
0 ＋ 0.01
0 － 0.01
NHC
About designation unit for key flat cutting
－ 0.05 0
Y
WKC
L
8
Varied dimension flat cutting P/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2 Two flats (right angled) cutting P/2 ≦ RKC ＜ H/2
L
V–A 2
P–V 2
KAC KBC
TiCN Coating
+ 0.3
(L–Y) ≧
+ 0.3 +α
(Y–F) ≧
－ 0.01 KBC 0
－ 0.01 0
KAC
(1)When specifying key flat cutting according to shaft diameter Unit of designation 0.0025mm increments possible
AC °
CD
D
T (Tapered)
Two Step Shape
AC
X ± 0.05
R ≦ 0.3
Shape
Step2
RKC
S
± 0.02
RKC － 0.01 0
C ± 0.05
Ks ＝ 45 °
0.1 ≦ S ＜ A 2tanK 0.05mm increments 0 ＜ K ≦ 45 1° increments α = S
K ° ± 30 ′
± 30 ′
Z ＝ 45 °
R ≦ 0.1
± 30 ′
QC
Changes R (normally ≦ 0.1) to R ≦ 0.05 E Step1 Available for CB
DKC Three flats cutting P/2 ≦ DKC ＜ H/2
QC
Designation method QC
0 － 0.01
0 ＋ 0.01
DKC
DKC
L
R ≦ 0.1
－ 0.02 0
T ＝ 4
ℓ
RC
F Y L
Changes R (normally ≦ 0.1) to R ≦ 0.05 E Step2 Available for B Standard Z = 45° can be specified as an angle 30 ≦ AGC ≦ 60 E Step2 Available for C/D E Step2 When C: L−Y ≧ (V–A)/2tanAGC° + 0.3 +α E Step2 When D is selected: A + 2 (C × tanAGC°) ＜ V F dimension becomes shorter than Fmin. and L dimension becomes shorter than L min. FC ≧ 5mm E It can be designated up to Lmin. = 6.5mm Gas vent machining GS/GB = 1mm increments E Available when P ≧ 2.000 E 2 ≦ GS ≦ 10 GS + 2 ≦ GB ≦ 30 Fmin. ≦ F–GB Range of designation and Designation method: D P.366 Designation method RC
Four flats cutting P/2 ≦ SKC ＜ H/2
＋ 0.01 0
SKC
(2)When designating arbitrary key flat dimensions Unit of designation 0.1mm
RC
ℓ
F
－ 0.01 SKC 0
R (R chamfering)
0 ＋ 0.01
Y
AG ° ± 0.5
Two flats (angled) cutting P/2 ≦ KGC ＜ H/2 0 ＜ AG ＜ 360 AG = 1° increments
± 0.1 Q
0 °
KGC
AGC °
L
(Y–F) ≧ X + 0.3
(L–Y) ≧ C + 0.3 +α
AGC
KGC
120 ° 120 °
CE
E
0.2 ≦ Q ＜ A/2 0.1mm increments α = Q
Three flats cutting at 120° P/2 ≦ KTC ＜ H/2
－ 0.01 120 ° 0
R ≦ 0.3
Shape
Step2
KTC
＋ 0.01 0
W ± 0.1
L
KTC
± 0.1 R
FC
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.
F FC
B (Spherical processed)
HC
SR ＝ A/2
－ 0.02 0
GVC
T ＝ 4
ℓ
GS
F Y L
Head diameter change (precision) HCC = 0.1mm increments E P + 0.5 ≦ HCC ＜ H−0.3
F GB
＋ 0.01
ℓ
F
HCC
0
＋ 0.01
Y
0
0 － 0.05 L
Head thickness change TC = 0.1mm increments E 1.5 ≦ TC ＜ 4 (Dimensions L, Y, F remain unchanged) E 4–TC ≦ Lmax.–L
α = A/2
E P ≧ 0.900 (Y–F) ≧ W + 0.3
L
0
(L–Y) ≧ R + 0.3 +α
TC
TC
－ 0.02
4
411
412
E Refer to the Shape drawing for L tolerance
Powered by FlippingBook