High Speed Steel SKH51
STRAIGHT EJECTOR PINS WITH GAS VENT –HEADBAND/TIP DIAMETER SELECTION/SHAFT DIAMETER SELECTION/SHAFT DIAMETER DESIGNATION TYPE–
E When specifying the tip diameter, refer to D P.51 .
Part Number – L – P – N – SV – (KC/WKC … etc.) GV–EPHB3 – 148.36 – P2.96 – N2.0 – SV4.0 – KC1.48
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
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 A part
About Designation Unit for Key Flat Cutting
b 1 (Range of guaranteed shaft diameter precision)
x 1
+ 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
(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
WKC Two flats cutting P/2 ≦ WKC < H/2
Numbering at the back part of the head Range of designation and Designation method: D P. 10 X Combination with SKC not available Numbering at the back part of the head (Automatic sequential numbering) Range of designation and Designation method: D P. 10 X Combination with SKC not available
217
0 - 0.1
NHC
WKC
0 - 0.02 T
B part
Varied width parallel flats 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
- 0.1 0
- 0.1 0
1 2 3
KAC
KBC
NHN
Head thickness
Head thickness
T P Tolerance
Part Number
Part Number
Shape
Tip End Face Roughness
Two flats (right angled) cutting P/2 ≦ RKC < H/2
0 –0.005
M Material SKH51 H Hardness 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 excluding gas vent. )
GV–EPH–L GV–EPHE–L GV–EPHB GV–EPHBE
GV–EPHJ–L GV–EPHJE–L GV–EPHJB GV–EPHJBE
RKC
RKC - 0.1 0
Shaft diameter selec- tion type
–
TMC Lapping on the tip face. Details D P. 10
–0.01 –0.02
L
4mm (T4)
6/8mm (JIS)
0 –0.005
DKC Three flats cutting P/2 ≦ DKC < H/2
Shaft diameter designation type
–0.01 –0.02
0 - 0.1
DKC
DKC
■ Features Let gas out from the inside of the cavity via the clearance around the ejector pin.
■ Shaft diameter selection type Head thickness 4mm Head thickness JIS
Example
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
Four flats cutting P/2 ≦ SKC < H/2
SKC
SKC - 0.1 0
Part Number
0.5mm increments
L 0.01mm increments
Type
± 0.5 AG ° 0 ° KGC 120 ° 120 °
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = 1° increments 0 < AG < 360
H T H T
P
N
SV
PL Line
Head thickness 4mm Head thickness JIS
KGC
2
4 5 6
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
Three flats cutting at 120° P/2 ≦ KTC < H/2
3.5
- 0.1 120 ° 0
KTC
7
GV–EPH–L ( P 0 –0.005 )
4
8
KTC
4.5 40.00–300.00 (350.00)
8
5
GV–EPHJ–L ( P 0 –0.005 )
9
4
5.5
6
2.0–10.0 L– (2 + SV + N) ≧ 10
2.0–50.0 L– (2 + SV + N) ≧ 10
9
GV–EPHE–L ( P –0.01 –0.02 )
6
10
6.5 7
40.00–350.00
10
11
GV–EPHJE–L ( P –0.01 –0.02 )
8
11 15
13 15 17
10
8
17 12 E L dimension ( ) size is applicable only for head thickness 4mm type. ■ Shaft diameter designation type Head thickness 4mm Head thickness JIS Part Number
Gas flow
0.01mm increments
0.5mm increments
Type
H T H T
No.
L
P
N
SV
Head thickness 4mm Head thickness JIS
0.5–8.0 L– (2 + SV + N) ≧ 10
2.0–30.0 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
6
10
GV–EPHBE ( P –0.01 –0.02 )
6.5
40.00–350.00
10
11
GV–EPHJBE ( P –0.01 –0.02 )
7 8
11 15 17
13 15 17
10 12
8
E L dimension ( ) size 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
459
460
Powered by FlippingBook