Die Steel SKD61 Head thickness 4mm
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.) GWS–EPDBS5– 268.30 – P4.50 – E0.03 – HC6.0
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
Single flat cutting P/2 ≦ KC < H/2
b 1 (Range of guaranteed shaft diameter precision)
x 1
KC
HC
Step R
KC － 0.1 0
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 Head thickness change TC = 0.1mm increments E 2.0 ≦ TC ＜ 4 (Dimension L remains unchanged) E 4−TC ≦ Lmax.−L
WKC Two flats cutting P/2 ≦ WKC < H/2
Enlarged view of A part
HCC
Die Steel SKD61
0 － 0.1
WKC
Pre–Hardened Die Steel SKD61
(1) To align the key flat with the shaft diameter Unit of designation GW–EPDS−L/ GW−EPD−L/ GWS−EPDS−L/ GWS−EPD−L 0.05mm increments possible GW−EPDBS/ GW−EPDB/ GWS−EPDBS/ GWS−EPDB 0.005mm increments possible
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
10 (Guaranteed length for E dimension gas vent depth)
KAC KBC
E 4 －
± 0.01
TC
－ 0.1 0
－ 0.1 0
TC
0 － 0.02
0 － 0.05
T ＝ 4
（ L ＞ 300 c T
）
KAC
KBC
P
P
4
＋ 0.02 0
＋ 0.05 0
Stainless Steel SUS440C
（ L ＞ 200 L
）
L
0 ＋ 0.1
2
SV 40 ≦ L ＜ 60 60 ≦ L ＜ 105 L ≧ 105
Dowel hole boring E Applicable when H ≧ 4 X Combination with other than NHC/NHN not available
P
Two flats (right angled) cutting P/2 ≦ RKC < H/2
RKC
NC
RKC － 0.1 0
4mm
3.00– 4.99 5.00– 9.99 10.00–13.00
15 30 30
30 30 50
30 50 50
Part Number
Head thickness T P Tolerance
4
Single face cutting Four faces cutting GW–EPDS–L GW–EPDBS GWS–EPDS–L GWS–EPDBS
JIS (6/8mm)
0 –0.005
M Material H Hardness
SKH51
2
Dowel hole + Spring pin driving E Applicable when H ≧ 4 X Combination with other than NHC/NHN not available 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
4mm (T4)
DKC Three flats cutting P/2 ≦ DKC < H/2
58–60HRC Range of guaranteed shaft diameter precision/base material hardness (Details D P.7 )
NCW
GW–EPD–L GW–EPDB
GWS–EPD–L GWS–EPDB
( Range of guaranteed shaft diameter precision is only for the shaft diameter except for gas vent. )
–0.01 –0.02
10mm
0 － 0.1
DKC
DKC
4
P –0.01 –0.02 P 0 - 0.005 –
■ L dimension designation type Head thickness 4mm
217
Four flats cutting P/2 ≦ SKC < H/2
SKC
NHC
Part Number
0.01mm increments
SKC － 0.1 0
H
T
Type
P
L
E
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
± 0.5 AG ° 0 ° KGC 120 ° 120 °
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
P 0
3
6
–0.002
1 2 3
KGC
NHN
3.5 4 4.5 5 5.5
40.00–300.00
7
Standard Size Total Length Designation
Three flats cutting at 120° P/2 ≦ KTC < H/2
－ 0.1 120 ° 0
KTC
8
Single face cutting GW–EPDS−L GW−EPD−L
40.00–400.00 (500.00)
KTC
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
Single face cutting 0.02–0.05
9
6
4
Four faces cutting 0.03–0.05
6.5 7
Four faces cutting GWS–EPDS−L GWS−EPD−L
■ Characteristics Let gas out from the inside of the cavity via the clearance around the ejector pin.
10
Example
Tip Process
40.00–500.00
8
11 15 17 18
Engraving
10 12
PL Line
Gas Vent
13 e The L dimension enclosed in brackets ( ) is applicable only for GW(S)–EPD–L ■ P/L dimension designation type Head thickness 4mm Part Number
0.01mm increments
H
T
Type
No. 3.5
L
P
E
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
7
4
40.00–300.00
4.5
8
Gas ow
5
40.00–400.00
Single face cutting GW–EPDBS GW−EPDB
5.5
Single face cutting 0.02–0.05
9
6
4
6.5
Four faces cutting 0.03–0.05
10
Four faces cutting GWS–EPDBS GWS−EPDB
7 8
40.00–500.00
11 15 17 18
10 12 13
10.00–11.99 12.00–12.99
Part Number – L – P – E GW–EPD–L5 GWS–EPDBS5 – – 270.50 268.30 – P4.50 – – E0.03 E0.03
Delivery Quotation
Order
57
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