High Speed Steel SKH51
PRECISION STEPPED ONE–STEP CENTER PIN –SHAFT DIAMETER (P) 0.01 mm DESIGNATION TIP (A/V) TOLERANCE ± 0.005 / ± 0.01 TYPE–
Precision
Standard
Type
Designation 0.01 mm unit
0.1 mm unit
Flange thickness 4 mm Flange thickness JIS
T Tolerance P
Flange thickness (T)
Applicable ejector sleeve hole diameter tolerance + 0.005 0 E Note that for sleeves with V dimen- sion tolerance of 0 –0.005 , combina- tion 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.
H T H T
Step D
L
P
F
A
Vmin.
C/R
N
Flange thickness 4 mm Flange thickness JIS
70.00 – 150.00 0.80 – 0.89 70.00 – 200.00 0.90 – 0.99
CPHB–5
1
15
0.50
3
3
4 mm (T4)
1.5
1.00 – 1.49 1.50 – 1.99 1.50 – 2.49 2.00 – 2.99 2.50 – 3.49 3.00 – 3.99 3.50 – 4.49 4.00 – 4.99 5.00 – 5.49 5.00 – 5.99 5.00 – 6.49 6.00 – 6.99 6.00 – 7.99 8.00 – 8.99 8.00 – 9.99 10.00 – 11.99
20 25 30 35 40 45
CPVB–5
Step D only 0.1 ≦ C ≦ 1.5 and C ＜ P – A 2 Step E only R ≧ 0.3 and R ≦ P – A 2
2
70.00 – 250.00
4 5 6
4 5 6 7
4
0.70
0 –0.005
2.5
CPHBJ–5
A B C D E
3
4/6/8 mm (JIS)
P ＞ A ≧ V
3.5
1.00
Range of guaranteed retention diameter precision (details D P.221 ) Range of guaranteed base material hardness (details D P.223 )
70.00 – 300.00
7
M material SKH51 H hardness 58 – 60 HRC
4
CPVBJ–5
N ≧ 25.0 and 30 ≦ (F–N) ≦ 200
CPHB–5 CPVB–5
CPHBJ–5 CPVBJ–5
8
Step If A is selected, no need to designate A
4.5
F ≧ 55.00
1.50
8
4
5
R ≦ 0 . 5
（ D ≦ 2
R ≦ 0 . 3 ）
9
5.5
6
9
Step A
6
T Tolerance P
T Tolerance V
10
Type
Connection R
6.5
50
10
11
7 8 9
70.00 – 350.00
2.00
CPHB–5A
D (P) –0.01 –0.02
11 14 15 17
13 14 15 17
± 0.01
8
10 12
CPHBJ–5A
－ 0 . 02 0
D (P) 0
T
0 –0.005
–0.005
Normal α＝ 0 CX, RX, SR When using additional machining, refer to additional machining
（ F － N ） ＋ 5 0
N － 5 0
E Step E is D ≧ 1.5 (P ≧ 1.10) – E For ℓmin., refer to the standard diagram
CPVB–5A
Total Length Designation Shaft Diameter(P) Total Length Designation
± 0.005
ℓ
F （ L ＞ 200 L ＋ 0 . 05 0
ℓ≧ 0 . 5 ＋α
Type –L–P–F–A–V–C(R)–N CPHB–5E 6 – 350.00 – P5.5 – F330.00 – A3.00 – V2.5 – R0.5 – N150
CPVBJ–5A
）
＋ 0 . 02
＋ 0 . 05 0
Order
0 L
R ≦ 0.5
（ D ≦ 2
R ≦ 0.3 ）
Step B
R ≦ 0.2
Two– stepshape
T Tolerance P
T Tolerance A / V
Type
Connection R
Quotation
Delivery
Steppedon –step
CPHB–5B
± 0.01
–L–P–F–A–V–C(R)–N–(KC/WKC … etc.)
Type
Stepped two–step
CPHBJ–5B
Alterations
－ 0.02 0
KC3.0
CPHB–5E 6 – 350.00 – P5.55 – F330.00 – A3.00 – V2.50 – R0.5 – N150 –
T
0 –0.005
（ F － N ） ＋ 5 0
Normal α＝ 0 CX, RX, SR When using additional machining, refer to additional machining
Alteration details D P.287
N － 5 0
CPVB–5B
（ F ＞ 200 F
）
Alteration Code
Details
Alteration Code
Details
ℓ
± 0.005
＋ 0.02 0
＋ 0.05 0
ℓ≧ 0.7 ＋α
F
CPVBJ–5B
（ L ＞ 200 L
）
＋ 0.02 0
＋ 0.05 0
L
Changes the flange diameter (precision) HCC = Designation 0.1 mm unit E D + 0.5 ≦ HCC ＜ H−0.3 Changes the flange thickness TC = Designation 0.1 mm unit E T/2 ≦ TC ＜ T, D ≧ 1.5 (Dimensions L, F, N remains unchanged) E T−TC ≦ Lmax.−L Dowel hole boring E Available when H ≧ 4 X Combination except for NHC/NHN/CX/ RX/SR/AC/RR not available Dowel hole boring + Spring pin driving E Available when H ≧ 4 X Combination except for NHC/NHN/CX/ RX/SR/AC/RR not available Numbering on the head Designation range and method: D P.288 E Available when H ≧ 2 Automatic sequential numbering on the head Designation range and method: D P.288 E Available when H ≧ 2
Precision single flat cutting D/2 ≦ VKC ＜ H/2
HCC
VKC
VKC － 0.02 0
R ≦ 0.5
（ D ≦ 2
R ≦ 0.3 ）
Step C
T Tolerance P
T Tolerance Ks
T Tolerance A / V
R ≦ 0.2
Type
Connection R
Ks ＝ 45 °
Precision two flats cutting D/2 ≦ VWC ＜ H/2
VWC
TC
－ 0.02 0
TC
About designation unit for key flat cutting
VWC － 0.02 0
CPHB–5C
T
± 0.01
± 1°
CPHBJ–5C
＋ 0.1
－ 0.02 0
P － A ＋
0 d
T
T d ℓ 4 2 3 6 3 5 8 T d ℓ 1 4 2 5 6 3 8
Single flat cutting D/2 ≦ KC ＜ H/2
ℓ≧
0.5 ＋α
KC
0 –0.005
(1) When designating the flange cut in alignment with retention diameter Designation unit 0.05 mm unit is al- lowed
NC
KC － 0.1 0
（ F － N ） ＋ 5 0
Normal α＝ 0 CX, RX, SR When using additional machining, refer to additional machining
N － 5 0
2
CPVB–5C
T
（ F ＞ 200 F
）
± 0.005
± 30°
ℓ
＋ 0.02 0
＋ 0.05 0
When AC alteration is used
F
P － A ＋
CPVBJ–5C
d
ℓ≧
0.5 ＋α
Two flats cutting D/2 ≦ WKC ＜ H/2
WKC
）
（ L ＞ 200
＋ 0.02
＋ 0.05 0
L
NCW
0 L
WKC － 0.1 0
2tanAC
R ≦ 0.5
（ D ≦ 2
R ≦ 0.3 ）
T
R ≦ 0.2 R ≦ 0.2
Step D
Varied dimensions parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = Designation 0.1 mm unit only KAC ＜ KBC ＜ H/2
C
T Tolerance P
T Tolerance A / V
T Tolerance Ks
C ± 0.05
KAC KBC
217
Connection R
NHC
Type
Ks ＝ 45 °
－ 0.1 0
－ 0.1 0
KAC
KBC
(2) To designate
CPHB–5D
arbitrary key flat dimensions
1
2
3
NHN
± 0.01
± 1°
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
RKC
CPHBJ–5D
－ 0.02 0
RKC － 0.1 0
T
Designation unit 0.1 mm
0 –0.005
CX = Designation 0.1 mm unit E 0.3 ≦ CX ≦ 0.5, CX ＜ V/2 E Available when P ≧ 2 V is the dimension prior to CX machining. ※α＝ CX RX = Designation 0.1 mm unit E P ≦ 4.5 c 0.3 ≦ RX ≦ 0.5, RX ＜ V/2 P ＞ 4.5 c 0.3 ≦ RX ≦ 1.0 E Available when P ≧ 2 V is the dimension prior to RX machining. ※α＝ RX The tip is processed to be a spherical surface (SR). E Available when P ≧ 2 E L + 0.05 0 . ※α＝ V/2 V is the dimension prior to SR machining.
± 0.1 CX
（ F － N ） ＋ 5 0
Normal α＝ 0 CX, RX, SR When using additional machining, refer to additional machining
N － 5 0
CPVB–5D
CX
（ F ＞ 200 F
）
ℓ
＋ 0.02 0
＋ 0.05 0
± 0.005
± 30°
Three flats cutting D/2 ≦ DKC ＜ H/2
F
ℓ≧ C ＋ 0.5 ＋α
DKC
CPVBJ–5D
DKC － 0.1 0
（ L ＞ 200 L
）
＋ 0.02 0
＋ 0.05 0
DKC
L
± 0.1 RX
RX
R ≦ 0.5
（ D ≦ 2
R ≦ 0.3 ）
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 AG = Designation 1° unit 0 ＜ AG ＜ 360
Step E
0 °
KGC
T Tolerance P
T Tolerance A
T Tolerance V
R ± 0.1
Type
Connection R
SR
KGC
SR
CPHB–5E
120 ° 120 °
Three flats cutting 120° distribution D/2 ≦ KTC ＜ H/2
－ 0.1 0 120 °
± 0.01
KTC
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
CPHBJ–5E
－ 0.02 0
AC °
T
KTC
0 –0.005
AC
± 0.02
（ F － N ） ＋ 5 0
Normal α＝ 0 CX, RX, SR When using additional machining, refer to additional machining
N － 5 0
CPVB–5E
Changes the flange diameter HC = Designation 0.1 mm unit E D ≦ HC ＜ H, D ≧ 1.5 E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
（ F ＞ 200 F
）
± 0.005
ℓ
＋ 0.05 0
＋ 0.02 0
ℓ≧ R ＋ 0.5 ＋α
F
HC
RR
CPVBJ–5E
（ L ＞ 200 L
）
＋ 0.05 0
＋ 0.02
RR
0 L
303
304
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