Die Steel SKD61 + Nitriding
High Speed Steel SKH51
EJECTOR PINS WITH GAS VENT FILTER –NORMAL TYPE/TIP PROCESSING TYPE–
EJECTOR PINS WITH GAS VENT FILTER –JIS TYPE–
Enlarged filter section
Enlarged filter section
x 1
b 1 (Range of guaranteed shaft diameter precision/hardness)
GVFE (Normal/Medium flow rate) GVFEM (Normal/Large flow rate) GVFEA (For tip processing/Medium flow rate) GVFEAM (For tip processing/Large flow rate)
N
N A
A
GVFEJ (JIS/Medium flow rate) GVFEJM (JIS/Large flow rate)
b 1 (Range of guaranteed shaft diameter precision/hardness)
x 1
（ 0.1 ）
L
N
N A
A
（ 0.1 ）
L
（ G ）
（ C0.1 ）
R ≦ 0.5
（ G ）
（ C0.1 ）
ℓ
e In some sizes, escape holes do not penetrate till the head side.
T ＝ 4
0 － 0.02
－ 0.01 － 0.02
Details of ventilation groove
Details of lter end face
＋ 0.02 0
＋ 0.05 0
（ L ＞ 200 c
）
R ≦ 0.5
P
L
e In some sizes, escape holes do not penetrate till the head side.
（ 3 ）
x 1 max. = 30 x 1 Shaft diameter tolerance: P
0 － 0.05
－ 0.01 － 0.02
Details of ventilation groove
Details of lter end face
＋ 0.02 0
＋ 0.05 0
0 –0.1
e ＊ Mark: Penetration of escape hole No–marking: No penetration of escape hole ■ N dimension/Escape hole type
T
（ L ＞ 200 c
）
N L ≦ 150 150 < L 175 < L 200 < L 225 < L 250 < L 275 < L
P
L
P
x 1 Hardness: 28–60HRC Up to 2mm below the head: 28–35HRC Operating temperature: 180°C
■ N dimension/Escape hole type
x 1 max. = 35 x 1 Shaft diameter tolerance: P 0 –0.1 x 1 Part hardness: 28–43HRC (reference value) (without nitriding) Operating temperature: 180°C
e ＊ Mark: Penetration of escape hole No–marking: No penetration of escape hole
25 ＊ 25 ＊
3.5
125 125
150 150 25 ＊
175 175
200 200
225 225
250 250
P N L ≦ 150 150 < L 175 < L 200 < L 225 < L 250 < L 275 < L 300 < L 325 < L 350 < L 375 < L 4 25 ＊ 125 150 175 200 225 250 275 300 325 350 5 25 ＊ 200 250 300 6 25 ＊ 250 300 8 25 ＊ 250 300 10 25 ＊ 230 280
4 5 6
Components
M Material
H Hardness
200
Pin body
SKH51
58–60HRC
25 ＊
Filter
SUS303 equivalent
–
Components
M Material
H Hardness
Pin body SKD61 + Nitriding treatment
Base material 37–43HRC Surface hardness 900HV–
Filter part
(reference value)
Part Number
G (reference value)
A (reference value)
L 0.01mm increments
L
H C N
Filter
SUS303 equivalent
–
Outer diameter Number of rings
Normal For tip processing
Type
P
GVFE (Normal/Medium flow rate) GVFEA (For tip processing/Medium flow rate) GVFEM (Normal/Large flow rate) GVFEAM (For tip processing/Large flow rate)
3.5
2
1
7
1.0
See attached table See attached table
Filter part
Part Number
G (reference value)
A (reference value)
L 0.01mm increments
4 5 6
1
H
T
C
N
40.00–300.00
3
5
0.03
Outer diameter Number of rings
Type
P
3 4
2 3
8 9
2.5 3.5
4 5 6 8
2 3 4 5 6 2 3 4 5 6
1 2 3 4 5 1 2 3 4 5
8 9
1.0 2.5 3.5 4.5 5.5 1.0 2.5 3.5 4.5 5.5
2
1
See at- tached table
6
3.5
GVFEJ (JIS/Medium flow rate)
2
1
7
1.0
40.00–400.00
10 13 15
0.03
4 5 6
1
2
40.00–300.00
3
5
0.06
3 4
2 3
8 9
2.5 3.5
8
10
3
2
4 5 6 8
8 9
e Tip processing type Processing margin: 3mm
1
See at- tached table
6
GVFEJM (JIS/Large flow rate)
Part Number – L
40.00–400.00
0.06
10 13 15
Delivery Quotation
Order
2
GVFE5 – 245.98
8
10
3
Part Number – L – (KC/WKC … etc.) GVFE6 – 300.00 – KC3.0 e The orientation of the flat cut with respect to the part A and assembly holes cannot be specified.
Alterations
Part Number – L GVFEJ10 – 380.21
Delivery Quotation
Order
Alterations Code
Spec.
Alterations Code
Spec.
Part Number – L – (KC/WKC … etc.) GVFEJM8 – 350 – TK
Head diameter change HC = 0.1mm increments E P + 1 ≦ HC < H
Precision single flat cutting P/2 ≦ VKC < H/2 E Must be used with HCC Precision two flats cutting P/2 ≦ VWC < H/2 E Must be used with HCC
HC
Alterations
VKC
VKC － 0.02 0
e The orientation of the flat cut with respect to the part A and assembly holes cannot be specified.
Head diameter change (precision) HCC = 0.1mm increments E P + 1 ≦ HCC < H–0.3 E Available when L ≦ 150 Head thickness change TC = 0.1mm increments E 2 ≦ TC < 4 (Dimension L remains unchanged) E 4–TC ≦ Lmax.–L
Alterations Code
Spec.
Alterations Code
Spec.
HCC
VWC
Head diameter change HC = 0.1mm increments E P + 1 ≦ HC < H
0 － 0.02
KC Single flat cutting P/2 ≦ KC < H/2
VWC
HC
0 － 0.1
KC
About Designation Unit for Key Flat Cutting
Single flat cutting P/2 ≦ KC < H/2
Head thickness change TC = 0.1mm increments E T/2 ≦ TC < T (Dimension L remains unchanged) E T–TC ≦ Lmax.–L
KC
KC － 0.1 0
TC
0 － 0.02
TC
WKC Two flats cutting P/2 ≦ WKC < H/2
TC
0 － 0.05
TC
0 － 0.1
T
WKC
T
WKC Two flats cutting P/2 ≦ WKC < H/2
Shaft end face alignment Remove the filter protrusion on the shaft end face by wire cutting (Dimension L remains unchanged) e See page d P.454 for changes in appearance
Varied width parallel flats cutting P/2 ≦ KAC < H/2 KAC < KBC < H/2
0 － 0.1
KAC KBC
WKC
Shaft end face alignment Remove the filter protrusion on the shaft end face by wire cutting (Dimension L remains unchanged) e See page d P.454 for changes in appearance
－ 0.1 0
－ 0.1 0
TK
KAC
KBC
(1) To align the key flat with the shaft diameter Unit of designation 0.05mm increments possible
Varied width parallel flats cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2 Two flats (right angled) cutting P/2 ≦ RKC < H/2
TK
KAC KBC
－ 0.1 0
－ 0.1 0
RKC Two flats (right angled) cutting P/2 ≦ RKC < H/2
KAC
KBC
0 － 0.1
RKC
Unit of designation 0.1mm
RKC
RKC － 0.1 0
DKC Three flats cutting P/2 ≦ DKC < H/2
Example
Example
0 － 0.1
DKC
DKC
DKC Three flats cutting P/2 ≦ DKC < H/2
• Install it in a place where gas tends to accumulate, such as the final filling part, to let the gas escape. • The gas passes through the inside of the pin and is released from the escape hole or the part A installed in the ejector space. e For details on how to use it, refer to d P.453 “Overview of pins with gas vent filter”. e For how to use the tip processing type, refer to d P.458 “About the tip processing type”.
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
• Install it in a place where gas tends to accumulate, such as the final filling part, to let the gas escape. • The gas passes through the inside of the pin and is released from the escape hole or the A part installed in the ejector space. e For details on how to use it, refer to d P.453 “Overview of pins with gas vent filter”.
0 － 0.1
SKC Four flats cutting P/2 ≦ SKC < H/2
DKC
DKC
0 － 0.1
SKC
Four flats cutting P/2 ≦ SKC < H/2
SKC
± 0.5 AG ° 0 °
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = 1° increments 0 < AG < 360
－ 0.1 SKC 0
KGC
0 ° KGC AG ° 120 ° 120 °
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = 1° increments 0 < AG < 360
± 0.5
KGC
KGC
A
120 ° 120 °
A
Three flats cutting at 120° P/2 ≦ KTC < H/2
0 － 0.1 120 °
KTC
Three flats cutting at 120° P/2 ≦ KTC < H/2
KTC
120 °
KTC
455
456
0
KTC
－ 0.1
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