Die Steel SKD61 + Nitriding P –0.01 –0.02
TAPERLESS ONE–STEP CENTER PIN –SHAFT DIAMETER (P) 0.1 mm DESIGNATION TIP (A) TOLERANCE 0 −0.02 TYPE –
Standard
Type
Flange thickness 4 mm
Flange thickness JIS
T Tolerance Flange thickness (T)
Designation 0.01 mm unit
0.1 mm unit
Flange thickness (T)
T Tolerance P
Applicable ejector sleeve hole diameter tolerance
Designation 0.01 mm unit Designation 0.1 mm unit
4 mm JIS (6/8 mm) Nitriding Die Steel SKD61 High Speed Steel SKH51 Die Steel SKD61 +
Type
ℓ max.
Type
H T H T
Step Shape No.
L
P
F
A Amin.
C/R
Flange thickness 4 mm Flange thickness JIS
4 5 6 7
2
1.5 – 1.9 2.0 – 2.4 2.5 – 2.9 3.0 – 3.4 3.5 – 3.9 4.0 – 4.4 4.5 – 4.9 5.0 – 5.4 5.5 – 5.9 6.0 – 6.4 6.5 – 6.9 7.0 – 7.9 8.0 – 9.9 10.0 – 11.9 12.0 – 14.9 15.0 – 15.9
0 –0.02
0.70
4 mm (T4)
CPNSG–5
2.5
No need to designate if no tip processing is required
( L ＞ 300 c T 0
–0.05 )
– –
–
–0.01 –0.02
3
70.00 – 400.00 (500.00)
+ 0.01 0
Step D only 0.1 ≦ C ≦ 1.5 and C ＜ P – A 2 Step E only R ≧ 0.3 and R ≦ P – A 2
or H7
3.5
1.00
4
E P > 12
Details D P.219
8
–0.01 –0.03
4.5
c P
6/8 mm (JIS)
8
1.50
0 –0.05
CPJSG–5
ℓ ≦ 12×A and ℓ ≦ 35
5
SKD61 + Nitriding
C G T R B
B C D E
Range of guaranteed shaft diameter precision (Details D P.221 ) Nitriding surface hardness guaranteed range (Details D P.224 )
M material
CPNSG–5
4
9
Range of guaranteed base material hardness (Details D P.223 ) Base material 40 – 45 HRC E Nitriding treatment is not applied to the tip–shaped part (ℓ part).
H hardness Surface 900 HV –
6
5.5
F ≧ 50.00 P–0.02 ＞ A ≧ Amin.
9
10
6
6.5
CPJSG–5
10 11 11 13 15 15 17 17
Step (step shape) Select from B – E in the figure below
Shape (tip dimension)
7 8
70.00 – 500.00
2.00
D (P) –0.01 –0.02
(Not processed)
10 12 15 16
No need to designate Shape if no tip processing is required
Step B
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
R ≦ 0.2
8
D (P) 0
Select from the figure on the right
Shape
–0.005
20 21
– –
–
2.50
Total Length Designation Shaft Diameter(P) Total Length Designation
E For ℓmin. refer to standard drawing E L dimensions in parentheses ( ) are for CPJSG–5 only. E Step E is P ≧ 2
α＝ 0
L
Type – L – P – F – A – C (R) – Tip dimension (K/S/G/Q) CPNSG–5ER6 – 350.00 – P5.9 – F330.00 – A4.95 – R0.5 – Q1.5
T
Order
（ L ＞ 200 F
）
＋ 0.05 0
ℓ
＋ 0.02 0
Two– stepshape
ℓ≧ 0 . 7 ＋α
F
C
(C chamfered)
）
（ L ＞ 200
＋ 0.02 L 0
＋ 0.05
L
0
Steppedon –step
Quotation
Delivery
± 0.05 G
30 ´ 45 ° ±
Stepped two–step
α＝ G 0 . 1 ≦ G ＜ A / 2 Designation 0.1 mm unit
Step C
– Tip dimension (K/S/G/Q) – (KC/WKC … etc.)
Type
–L–P–F–A–C(R)
Alterations
R ≦ 0.2
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
–
KC3.0
Q1.0
CPNSG–5ER6 – 350.00 – P5.9 – F330.00 – A4.95 – R0.5 –
Shape
Ks ＝ 45 ° ± 30 ´
L
Alteration details D P.287
Alteration Code
Details
Alteration Code
Details
G
(Cone)
Changes the flange diameter HC = Designation 0.1 mm unit E P ≦ HC ＜ H
Single flat cutting P/2 ≦ KC ＜ H/2
KC
KC － 0.1 0
± 30 ´ K °
T
HC
Designation 1° unit 20 ＜ K ≦ 60
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
P － A
＋ 0.05 0
（ L ＞ 200 F
）
ℓ
＋ 0.02 0
F
ℓ≧
＋ 0 . 5 ＋α
2
WKC Two flats cutting P/2 ≦ WKC ＜ H/2
＋ 0.02 L 0
＋ 0.05
（ L ＞ 200
）
L
About designation unit for key flat cutting
A α＝
0
＋ 0.05
0 － 0.1
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 (Dimensions L, F remains unchanged) E T−TC ≦ Lmax.−L Dowel hole boring E Available when H ≧ 4 X Combination except for NHC/NHN/RR not available Dowel hole boring + Spring pin driving E Available when H ≧ 4 X Combination except for NHC/NHN/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
WKC
0 L
2tanK
HCC
Varied dimensions parallel flats cutting P/2 ≦ KAC ＜ H/2 KBC = Designation 0.1 mm unit only KAC ＜ KBC ＜ H/2
KAC KBC
(1) To align the key flat with the shaft diameter Designation unit 0.05 mm unit is allowed
T
Step D
Tapered
－ 0.1 0
－ 0.1 0
KAC
KBC
A 2tanK
0 . 1 ≦ S ＜
R ≦ 0.2
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
± 0.05 C
Shape
C
TC
0
± 0.05 S
－ 0.02 TC
Ks ＝ 45 ° ± 30 ´
R ≦ 0.2
K °
± 30 ´
Designation 0.1 mm unit 20 ＜ K ≦ 45 Designation 1° unit
T
Two flats (right angled) cutting P/2 ≦ RKC ＜ H/2
RKC
RKC － 0.1 0
＋ 0.1
T d ℓ 4 2 3 6 3 5 8 T d ℓ 1 4 2 5 6 3 8
d 0
(2) To designate arbitrary key flat dimensions Designation unit 0.1 mm
NC
L
DKC Three flats cutting P/2 ≦ DKC ＜ H/2
α＝ S
T
T
0 － 0.1
＋ 0.05 0
（ L ＞ 200 F
）
＋ 0.02 0
ℓ
DKC
DKC
F
ℓ≧
C ＋ 0 . 5 ＋α
d
R
(R chamfered)
NCW
＋ 0.02 L 0
＋ 0.05
）
（ L ＞ 200
AG °
± 0.5
Two flats (angled) cutting P/2 ≦ KGC ＜ H/2 AG = Designation 1° unit 0 ＜ AG ＜ 360
L
0
± 0.1
Q
0 °
KGC
T
KGC
217
NHC
0 . 2 ≦ Q ＜ A / 2 Designation 0.1 mm unit α＝ Q
Step E
120 ° 120 °
Three flats cutting 120° distribution P/2 ≦ KTC ＜ H/2
－ 0.1 120 ° 0
KTC
R ≦ 0.5 （ P ≦ 2
R ≦ 0.3 ）
Shape
± 0.1 R
L
KTC
1
2
3
NHN
B
(Spherical processed)
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
RR
RR
SR ＝ A / 2
T
＋ 0.05 0
（ L ＞ 200 F
）
＋ 0.02 0
ℓ
F
ℓ≧
R ＋ 0 . 5 ＋α
＋ 0.02 L 0
＋ 0.05
）
（ L ＞ 200
L
0
＋ 0.05
α＝ A / 2
0 L
313
314
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