High Speed Steel SKH51 P 0 –0.005
ONE–STEP CENTER PINS – SHAFT DIAMETER (P) DESIGNATION (0.01 mm INCREMENTS) TIP (A/V) TOLERANCE : ± 0.005 / ± 0.01 TYPE –
Precision
Standard
E For the fixed shaft diameter type, refer to D P.289 .
Flange thickness 4 mm
Flange thickness JIS
Type
Flange thickness (T)
T Tolerance P
Designation 0.01 mm unit
0.1 mm unit
Applicable ejector sleeve hole diameter tolerance + 0.005 0 E Note that for sleeves with V dimension tolerance of 0 –0.005, combination with center pins that have shaft diameter tolerance + 0.01 0 is not recommended. The reason for this in the fitting sections of H7 ejector sleeve are longer. Details D P.219
4 mm JIS (6/8 mm) Nitriding Die Steel SKD61 High Speed Steel SKH51 Die Steel SKD61 +
Type
Type
ℓ max.
Step Shape No.
H T H T
L
P
F
A Vmin.
C/R
Flange thickness 4 mm
Flange thickness JIS
CPHG –5
70.00 – 150.00 0.80 – 0.89
4 mm (T4)
1
15
No need to designate if no tip processing is required
0.50
70.00 – 200.00 0.90 – 0.99 1.5 70.00 – 250.00 1.00 – 1.49
3
3
CPVG –5
20 25 30 35 40 45
0 –0.005
Step D only 0.1 ≦ C ≦ 1.5 and C ＜ P – A 2 Step E only R ≧ 0.3 and R ≦ P – A 2
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
2
4 5 6
4 5 6 7
4
CPHJG–5
70.00 – 300.00
0.70
2.5
4/6/8 mm (JIS)
Range of guaranteed shaft diameter precision (Details D P.221 ) Range of guaranteed base material hardness (details D P.223 )
M material SKH51 H hardness 58 – 60 HRC
3
CPVJG–5
A B C D E
C G T R B
3.5
1.00
P ＞ A ≧ V Step A If selected, no need to designate A
70.00 – 300.00
7
4
CPHG–5 CPVG–5
CPHJG–5 CPVJG–5
Shape (Tip shape: V is a dimension prior to tip machining.)
8
F ≧ 50.00
4.5
4
Step (step shape) Select from A – E in the figure below
1.50
8
5
9
5.5
6
No need to designate Shape if no tip processing is required
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
(Not processed)
Step A
9
Select from the figure on the right
Shape
D (P) –0.01 –0.02
6
10
6.5
50
70.00 – 350.00
10
11
D (P) 0
–0.005 –0.01 –0.02
7 8
2.00
α＝ 0
11 15
13 15 17
10 12
8
Total Length Designation Shaft Diameter(P) Total Length Designation
－ 0.02 0
T
17 10.00 – 11.99 E Shape C/G/T/R/B is No.1.5 (P ≧ 1.00) – E Step E is No.1.5 (P ≧ 1.10) – E For ℓmin., refer to standard drawing
L
＋ 0.05
ℓ
≧ 0 . 5 ℓ ＋α
F
0 （ L ＞ 200
）
＋ 0.02 L 0
＋ 0.05
L
0 . 5 ≦ G ＜ V / 2 Designation 0.1 mm unit α＝ G θ＜ 45 ° (Calculation of θ D P.1193 )
Type – L – P – F – A – V – C (R) – Tip dimension (K/S/G/Q) CPHG–5EB 6 – 350.00 – P5.95 – F330.00 – A5.00 – V4.50 – R0.5
C
0
(C chamfered)
Two– stepshape
Order
G ± 0.05
45 ° ± 30 ´
B
R ≦ 0.2
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
Shape
Step
θ
Steppedon –step
Quotation
Delivery
Stepped two–step
– Tip dimension (K/S/G/Q) – (KC/WKC … etc.)
G
Type
–L–P–F–A–V–C(R)
0 T － 0.02
L
Alterations
–
KC3.0
CPHG–5E 6 – 350.00 – P5.95 – F330.00 – A5.00 – V4.50 – R0.5
＋ 0.05
F ＋ 0.02 0
ℓ
（ F ＞ 200
）
Alteration details D P.287
F
G
(Cone)
≧ 0 . 7 ℓ ＋α
0
（ L ＞ 200 ＋ 0.02 L 0
＋ 0.05
）
Alteration Code
Details
Alteration Code
Details
L
± 30 ´ K °
0
θ
Designation 0.1 mm unit 20 ＜ K ≦ 60 α＝ 2tanK V θ＜ K (Calculation of θ D P.1193 )
Changes the flange diameter HC = Designation 0.1 mm unit E P ≦ HC ＜ H, P ≧ 1.5
R ≦ 0.2
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
Shape
Step C
Ks ＝ 45 °
Precision single flat cutting P/2 ≦ VKC ＜ H/2
VKC
HC
VKC － 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.
L ± 0.05
When AC alteration is used P － A ＋ ≧ 2 ℓ
0
Changes the flange diameter (precision) HCC = Designation 0.1 mm unit E P+0.5 ≦ HCC ＜ H−0.3 Changes the flange thickness TC = Designation 0.1 mm unit E T/2 ≦ TC ＜ T, P ≧ 1.5 (Dimensions L, F remains unchanged) E T−TC ≦ Lmax.−L Dowel hole boring E Available when H ≧ 4 X Combination except for NHC/NHN/AC/RR not available Dowel hole boring + Spring pin driving E Available when H ≧ 4 X Combination except for NHC/NHN/AC/RR not available Numbering on the head Designation range and method: D P.288 E Available when H ≧ 2
T
(Tapered)
0 . 5 ＋α
0 . 1 ≦ S ＜
T － 0.02
V 2tanK
VWC Precision two flats cutting P/2 ≦ VWC ＜ H/2
HCC
S ± 0.05
0 － 0.02
ℓ
＋ 0.02
＋ 0.05
（ F ＞ 200
）
VWC
θ
F
F
Designation 0.1 mm unit
0
0
P － A ＋ 2tanAC
± 30 ´ K °
）
（ L ＞ 200
＋ 0.02 L 0
＋ 0.05
ℓ≧
0 . 5 ＋α
L
0
Designation 1° unit 20 ＜ K ≦ 45 α＝ S θ＜ K
Single flat cutting P/2 ≦ KC ＜ H/2
KC
TC
0
R ≦ 0.5 （ D ≦ 2
R ≦ 0.3 ）
Shape
－ 0.02 TC
KC － 0.1 0
Step D
± 0.05 C
R ≦ 0.2 R ≦ 0.2
C
T
Ks ＝ 45 °
(Calculation of θ D P.1193 )
About designation unit for key flat cutting
L
＋ 0.1
Designation 0.1 mm unit 0 . 2 ≦ Q ＜ V / 2 α＝ Q
d 0
T d ℓ 4 2 3 6 3 5 8
R
(R chamfered)
WKC Two flats cutting P/2 ≦ WKC ＜ H/2
NC
0 － 0.1
(1) To align the key flat
WKC
0
Q ± 0.1
T
T － 0.02
with the shaft diameter
＋ 0.02
＋ 0.05
ℓ
（ F ＞ 200
）
Designation unit 0.005 mm unit is al- lowed
F
F
Varied dimensions parallel flats cutting P/2 ≦ KAC ＜ H/2 KBC = Designation 0.1 mm unit only KAC ＜ KBC ＜ H/2
ℓ≧ C ＋ 0 . 5 ＋α
0
0
d
T d ℓ 1 4 2 5 6 3 8
KAC KBC
＋ 0.02 L 0
＋ 0.05
）
（ L ＞ 200
NCW
L
－ 0.1 0
－ 0.1 0
Q
0
KAC
KBC
T
L
Step E
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
Shape
± 0.1 R
Two flats (right angled) cutting P/2 ≦ RKC ＜ H/2
(2) To designate arbitrary key flat dimensions Designation unit 0.1 mm
217
RKC
NHC
B
(Spherical processed)
RKC － 0.1 0
SR
Automatic sequential numbering on the head Designation range and method: D P.288 E Available when H ≧ 2
α＝ V / 2
DKC Three flats cutting P/2 ≦ DKC ＜ H/2
0
1
2
3
NHN
T － 0.02
0 － 0.1
DKC
DKC
＋ 0.02
＋ 0.05
ℓ
（ F ＞ 200
）
F
F
ℓ≧ R ＋ 0 . 5 ＋α
0
0
L ± 0.05
＋ 0.02 L 0
＋ 0.05
）
（ L ＞ 200
Standard Ks = 45° can be specified as an angle AC ＝ designation 1° unit E 30 ≦ AC ≦ 60 E Step Applicable to C/D X Combination with RR not available E Step For D, C ≦ 1.0, A + 2 (C × tanAC°) ＜ P Changes R (normally 0.2 or less) to R0.3–0.5 (for Strength improvement) Designation method RR E Step Applicable to B/C/D E P−A ≧ 1.0 Step For D, C ≧ 0.5
L
0
Two flats (angled) cutting P/2 ≦ KGC ＜ H/2 AG = Designation 1° unit 0 ＜ AG ＜ 360
AG °
± 0.5
AC °
0 °
KGC
AC
Step (Step shape A/V/Ks) T tolerance
KGC
Type
Step A
Step B
Step C
Step D
Step E
Group
120 ° 120 °
Flange thickness 4 mm
Flange thickness JIS
V
A/V
A/V
Ks
A/V
Ks
A
V
RR
Three flats cutting 120° distribution P/2 ≦ KTC ＜ H/2
－ 0.1 120 ° 0
KTC
RR
Standard CPHG–5 □ Precision CPVG–5 □
CPHJG–5 □ ± 0.01
± 0.01 ± 0.005
± 0.01 ± 0.005
± 1° ± 30´
± 0.01 ± 0.005
± 1° ± 30´
± 0.01 ± 0.005
KTC
± 0.02
CPVJG–5 □
± 0.005
293
294
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