High Speed Steel SKH51
STRAIGHT EJECTOR PINS WITH GAS VENT –L DIMENSION DESIGNATION/P/L DIMENSION DESIGNATION WITH CUTTING FACETS TYPE–
Part Number – L – P – E – (KC/WKC … etc.) GW–EPHB3 – 148.36 – P2.96 – E0.03 – 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, P ≧ 1.5
Precision Single flat cutting P/2 ≦ VKC < H/2
b 1 (Range of guaranteed shaft diameter precision)
HC
x 1
VKC
VKC － 0.02 0
Step R
Single face cutting
Four faces cutting
＋
5 0
R ≦ 0.5
SV
A part
About Designation Unit for Key Flat Cutting
Head diameter change (precision) HCC = 0.1mm increments E P + 1 ≦ HCC ＜ H−0.3, P ≧ 1.5 Head thickness change TC = 0.1mm increments E T/2 ≦ TC ＜ T, P ≧ 1.5 (Dimension L remains unchanged) E T−TC ≦ Lmax.−L
Precision two flats cutting P/2 ≦ VWC < H/2
HCC
Die Steel SKD61
VWC
Enlarged view of A part
VWC － 0.02 0
Pre–Hardened Die Steel SKD61
Single flat cutting P/2 ≦ KC < H/2
KC
(1) To align the key flat with the shaft diameter Unit of designation L dimension designation type 0.05mm increments possible L/P dimension designation type 0.005mm increments possible
KC － 0.1 0
0 － 0.02
TC
E 4 －
± 0.01
0 － 0.02 T
TC
T
＋ 0.02 0
＋ 0.05 0
P
（ L ＞ 200 L
）
P
L
Stainless Steel SUS440C
WKC Two flats cutting P/2 ≦ WKC < H/2
E Limit of E ± 0.01 is within 10mm from the tip.
0 － 0.1
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
WKC
NHC
Part Number
Head thickness T P Tolerance
Single face cutting Four faces cutting GW–EPH–L GW–EPHB GWS–EPH–L GWS–EPHB
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
4mm
KAC KBC
0 –0.005
M Material H Hardness
SKH51
－ 0.1 0
－ 0.1 0
JIS (6/8mm)
58–60HRC Range of guaranteed shaft diameter precision/base material hardness (Details D P.7 ) ( The guarantee range of shaft diameter precision is the value of shaft diameter except gas vent. )
KAC
KBC
4mm (T4)
1 2 3
GW–EPHE–L GW–EPHBE GW–EPHJ–L GW–EPHJB GW–EPHJE–L GW–EPHJBE
GWS–EPHE–L GWS–EPHBE GWS–EPHJ–L GWS–EPHJB GWS–EPHJE–L GWS–EPHJBE
NHN
–0.01 –0.02
10mm
0 –0.005
Two flats (right angled) cutting P/2 ≦ RKC < H/2
RKC
RKC － 0.1 0
6/8mm (JIS)
–0.01 –0.02
P –0.01 –0.02 P 0 - 0.005 –
■ Characteristics Let gas out from the inside of the cavity via the clearance around the ejector pin.
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
Example
■ L dimension designation type Head thickness 4mm Head thickness JIS
DKC Three flats cutting P/2 ≦ DKC < H/2
0 － 0.1
Part Number
0.01mm increments
DKC
DKC
Type
SV
H T H T
P
L
E
P 0
Head thickness 4mm Head thickness JIS
–0.002
Four flats cutting P/2 ≦ SKC < H/2
0.6 0.7 0.8 0.9 1 1.2 1.5
SKC
PL Line
SKC － 0.1 0
Standard Size Total Length Designation
Single face cutting GW–EPH–L GW–EPHE–L
40.00–150.00
E Flat cutting position is set at 90°of cutting facet in counter clockwise direction.
± 0.5 AG ° 0 ° KGC 120 ° 120 °
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
3
KGC
40.00–200.00
–
– –
(40.00) 60.00–250.00 (40.00) 60.00–300.00
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
2
4 5 6
Single face cutting 0.02–0.05
2.5
Three flats cutting at 120° P/2 ≦ KTC < H/2
L SV 40.00– 60.00 15 60.01–200.00 30 200.01–350.00 50
－ 0.1 120 ° 0
KTC
3
Single face cutting GW–EPH–L GW–EPHE–L Four faces cutting GWS–EPH–L GWS–EPHE–L
3.5
4
KTC
7
4
8
Four faces cutting 0.03–0.05
Tip Process
4.5
Single face cutting GW–EPHJ–L GW–EPHJE–L Four faces cutting GWS–EPHJ–L GWS–EPHJE–L
8
5
9
5.5
6
Engraving
(40.00) 60.00–350.00
9
6
10
6.5 7
10
11
Gas ow
Gas Vent
8
11 15
13 15 17
10
8
17 12 E Dimension L figures in parenthesis represents for Single face cutting. ■ P/L dimension designation type Head thickness 4mm Head thickness JIS Part Number
0.01mm increments
Type
SV
H T H T
No.
L
P
E
Head thickness 4mm Head thickness JIS
0.7 40.00–100.00
0.60– 0.69 0.70– 0.79 0.80– 0.89 0.90– 0.99 1.20– 1.49 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 10.00–11.99
Single face cutting
0.8 0.9
40.00–150.00 40.00–200.00
3
GW–EPHB GW–EPHBE
1
1.5 40.00–250.00
–
– –
2
4 5 6
2.5
Single face cutting 0.02–0.05
3
(40.00) 60.00–300.00
L SV 40.00– 60.00 15 60.01–200.00 30 200.01–350.00 50
Single face cutting
3.5
7
4
4
GW–EPHB GW–EPHBE
Single face cutting GW–EPHJB GW–EPHJBE
8
4.5
8
Four faces cutting 0.03–0.05
5
9
5.5
6
9
6
10
Four faces cutting GWS–EPHB GWS–EPHBE
6.5
(40.00) 60.00–350.00
10
11
7 8
Four faces cutting GWS–EPHJB GWS–EPHJBE
11 15 17
13 15 17
10 12
8
E Dimension L figures in parenthesis represents for Single face cutting.
Part Number – L – P – E GW–EPH–L5 GWS–EPHB6 – – 210.00 230.00 – P5.50 – – E0.03 E0.03
Delivery Quotation
Order
47
48
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