High Speed Steel SKH51
STRAIGHT EJECTOR PINS WITH GAS VENT –HEADBAND/TIP DIAMETER FIXED/L DIMENSION DESIGNATION TYPE/P/L DIMENSION DESIGNATION TYPE–
E Refer to P.51 when tip diameter dimension designated.
Part Number – L – P – N – SV – (KC/WKC … etc.) GV–EPHB3 – 148.36 – P2.96 – N2.0 – SV4.0 – KC1.48
High Speed Steel SKH51 + Hard chromate Die Steel SKD61 + Nitriding High Speed Steel SKH51
Alterations
Alteration details D P.9
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E P + 1 ≦ HC < H
Precision single flat cutting P/2 ≦ VKC < H/2
HC
VKC
VKC － 0.02 0
P
d
Step R
2 – 2.49 2.5 – 3.99
P–0.2 P–0.4 P–0.6
Head diameter change (precision) HCC = 0.1mm increments E P + 1 ≦ HCC < H−0.3 Head thickness change TC = 0.1mm increments E T/2 ≦ TC ＜ T (Dimension L remains unchanged) E T−TC ≦ Lmax.−L
C ＝ 0.1 ± 0.05
Die Steel SKD61
HCC
Precision two flats cutting P/2 ≦ VWC < H/2
VWC
4.00–12
VWC － 0.02 0
Enlarged view of A part
Enlarged view of B part
b 1 (Range of guaranteed shaft diameter precision)
About Designation Unit for Key Flat Cutting
x 1
Pre–Hardened Die Steel SKD61
＋ SV 5 0
＋ 0.2 0
Single flat cutting P/2 ≦ KC < H/2
R ≦ 0.5
KC
2
N
0 － 0.02
TC
KC － 0.1 0
A Part
TC
T
Stainless Steel SUS440C
WKC Two flats cutting P/2 ≦ WKC < H/2
(1) To align the key flat with the shaft diameter Unit of designation GV−EPH−L/GV−EPHE−L GV−EPHJ−L/GV−EPHJE−L 0.05mm increments possible GV−EPHB/GV−EPHBE GV−EPHJB/GV−EPHJBE 0.005mm increments possible
Numbering on the head Range of designation and Designation method: D P.10 X Combination with SKC not available Automatic sequential numbering on the head Range of designation and Designation method: D P.10 X Combination with SKC not available
217
0 － 0.1
NHC
WKC
4mm
0 － 0.02 T
B Part
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
L （ L ＞ 200 L ＋ 0.02 0
＋ 0.05 0
KAC KBC
）
P
JIS (6/8mm)
1 2 3
－ 0.1 0
－ 0.1 0
NHN
KAC
KBC
Head thickness
Head thickness
T P Tolerance
10mm
Part Number
Part Number
Shape
Tip Face Roughness
0 –0.005
Two flats (right angled) cutting P/2 ≦ RKC < H/2
M Material H Hardness
SKH51
GV–EPH–L
GV–EPHJ–L
RKC
TMC Lapping on the tip face. Details D P.10
Shaft diameter selection type
58–60HRC Range of guaranteed shaft diameter precision/base material hardness (Details D P.7 ) ( Range of guaranteed shaft diameter precision is only for the shaft diameter except for gas vent. )
RKC － 0.1 0
P –0.01 –0.02 P 0 - 0.005 –
–
L
–0.01 –0.02
GV–EPHE–L
GV–EPHJE–L
4mm (T4)
6/8mm (JIS)
0 –0.005
GV–EPHB
GV–EPHJB
DKC Three flats cutting P/2 ≦ DKC < H/2
Shaft diameter designation type
–0.01 –0.02
GV–EPHBE
GV–EPHJBE
0 － 0.1
DKC
DKC
P 0
■ Characteristics Let gas out from the inside of the cavity via the clearance around the ejector pin.
–0.002
■ L dimension designation type
Example
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
Four flats cutting P/2 ≦ SKC < H/2
Standard Size Total Length Designation
SKC
Part Number
0.5mm increments
SKC － 0.1 0
Head thickness 4mm Head thickness JIS
L 0.01mm increments
Type
H T H T
P
N
SV
± 0.5 AG ° 0 ° KGC 120 ° 120 °
Head thickness 4mm Head thickness JIS
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
PL Line
2
4 5 6
KGC
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
2.0–30.0 L– (2 + SV + N) ≧ 10
0.5–8.0 L– (2 + SV + N) ≧ 10
2.5
–
– –
3
40.00–300.00
3.5
Three flats cutting at 120° P/2 ≦ KTC < H/2
GV–EPH–L ( P 0 –0.005 )
－ 0.1 120 ° 0
7
KTC
4
8
4.5 40.00–300.00 (350.00)
Tip Process
KTC
8
GV–EPHJ–L ( P 0 –0.005 ) GV–EPHJE–L ( P –0.01 –0.02 )
5
9
4
5.5
6
Engraving
2.0–10.0 L– (2 + SV + N) ≧ 10
2.0–50.0 L– (2 + SV + N) ≧ 10
GV–EPHE–L ( P –0.01 –0.02 )
9
6
10
6.5 7
Gas Vent
40.00–350.00
10
11
8
11 15 17
13 15 17
10 12
8
E L in ( ) is applicable only for head thickness 4mm type. ■ P/L dimension designation type
Part Number
0.01mm increments
0.5mm increments
Head thickness 4mm Head thickness JIS
Gas ow
Type
H T H T
No.
L
P
N
SV
Head thickness 4mm Head thickness JIS
2.0–30.0 L– (2 + SV + N) ≧ 10
0.5–8.0 L– (2 + SV + N) ≧ 10
2.5
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 10.00–11.99
5 6
3
–
– –
40.00–300.00
3.5
7
4
GV–EPHB ( P 0 –0.005 )
8
4.5 40.00–300.00 (350.00)
8
GV–EPHJB ( P 0 –0.005 )
5
9
4
5.5
6
2.0–50.0 L– (2 + SV + N) ≧ 10
2.0–10.0 L– (2 + SV + N) ≧ 10
9
GV–EPHBE ( P –0.01 –0.02 )
6
10
6.5
40.00–350.00
GV–EPHJBE ( P –0.01 –0.02 )
10
11
7 8
11 15 17
13 15 17
10 12
8
E L in ( ) is applicable only for head thickness 4mm type.
Part Number – L – P – N – SV GV–EPH–L5 GV–EPHB3 – – 210.00 148.36 – P2.96 – – N2.0 N2.0 – – SV4.0 SV4.0
Delivery Quotation
Order
49
50
Powered by FlippingBook