Inner diameter SR B Dimension Designation Type
Electroforming PIN–POINT GATE BUSHINGS INNER DIAMETER TAPERED –STANDARD/B DIMENSION DESIGNATION TYPE–
Electroforming
B
E The angle (K°) and the secondary sprue (A°) are roundly connected.
Shape 1A
Part Number
None for 2A C 0.1mm increments
Shape 1A only V 0.1mm increments
Shape 3A only S° 1° increments
Shape 4A only E R 0.1mm increments
Enlarged view of the tip
L 0.01mm increments
B 0.01mm increments
G
＊
H G
P
A° K°
6.3
Type Shape D
1.6
2
5.00– 8.00
0.2
3
0.6 0.8
2.0–2.9
5
≦ R 0.2
3
5.00– 7.00
0 － 0.05
R ≦ 0.2
（ L － C － B ）
B
10.00–40.00
0.3–0.8
0.8–1.5
1A
1.2
D － 0.01 0
＋ 0.05
2
5.00–30.00
（ L － C ）
C
± 0.05
0
4
0.6 0.8 1.0 1.2
2.5–3.9
6
30
3
5.00–20.00
L
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
Eccentricity between D and P is 0.05 or less Eccentricity between D and V is 0.05 or less
1–45
2A
E (L–C–B) ≧ 3.0
2
5.00–30.00
1.0
PGEV ( Standard Type )
＊
Shape 2A
Enlarged view of the tip
3
5.00–30.00
G
3A
5
3.5–4.9
1.0–2.0
8
2
5.00–30.00
6.3
1.6
1.2 1.4
3
5.00–20.00
4A
15.00–60.00
0.5–1.5
1.5
0.2
2
5.00–50.00
40
1.0
≦ R 0.2
0 － 0.05
（ L － B ）
3
5.00–40.00
B
D － 0.01 0
5A
6
4.0–5.9 1–50 1.5–3.0
9
2
5.00–40.00
0 ＋ 0.05
1.2 1.4
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
L
Eccentricity between D and P is 0.05 or less
3
5.00–30.00
Shape 3A E (L － B) ≧ 3.0
E For shape 4A, R ≧ (P/2) 2 + C 2
＊
Enlarged view of the tip
PartNumber– L – P – A – K – B – CVSR PGEV1A4 – 20.01 – P0.8 – A2 – 30 – B15.00 – C0.5–V3.0 PGEV2A4 – 20.01 – P0.8 – A2 – 30 – B15.00 PGEV3A4 – 20.01 – P0.8 – A2 – 30 – B15.00 – C0.5 – S30 PGEV4A4 – 20.01 – P0.8 – A2 – 30 – B15.00 – C0.5 – R1.0 PGEV5A4 – 20.01 – P0.8 – A2 – 30 – B15.00 – C0.5
G
Example
Order
6.3
1.6
Locating ring ( P.701 – 708 )
0.2
Fixed side die plate
≦ R 0.2
0 － 0.05
（ L － C － B ）
B
Runner lock pin ( P.713 – 722 )
D － 0.01 0
0 ＋ 0.05
（ L － C ）
C
± 0.05
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
Runner stripper plate
Eccentricity between D and P is 0.05 or less
Delivery Quotation
L
E (L–C–B) ≧ 3.0
Fixed die plate
Shape 4A
Enlarged view of the tip
Pin-point gate bushings ( PGEV □ A )
PartNumber – L – P – A – K – B – CVSR –(CC/LKC) PGEV1A4 – 20.01 – P0.8 – A2 – 30 – B15.00 – C0.5–V3.0 – CC
G
＊
Alterations
Cavity insert
6.3
1.6
Alterations
Code
Spec.
0.2
C ± 0.1
Machining (C chamfering) for inlay relief.
≦ R 0.2
0 － 0.05
（ L － C － B ）
CC
B
R
D3/4 → C0.3 D5/6 → C0.5
D － 0.01 0
0 ＋ 0.05
（ L － C ）
C
± 0.05
B
C
L
Change the tolerances of the dimensions below.
Eccentricity between D and P is 0.05 or less
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
E R ≧ (P/2) 2 + C 2
E (L–C–B) ≧ 3.0
E V = 2 × R 2 –( R 2 –(P/2) 2 –C) 2
0 –0.05 c
0 –0.02
(L–C–B)
1A 4A
Shape 5A
G
＊
Enlarged view of the tip
+ 0.05 0
+ 0.02 0
(L–C)
c
6.3
1.6
（ L － C － B ） （ L － B ）
1A 3A 4A 5A 2A
0 –0.05 c
0 –0.02
LKC
(L–B)
2A
0.2
+ 0.05 0
+ 0.02 0
L
c
（ L － C ） L
1A 3A 4A 5A 2A
R ≦ 0.2
0 － 0.05
（ L － C － B ）
B
(L–C–B) 0 –0.02 E The tolerance of (L–C) remains + 0.05 0 unchanged. 0 –0.05 c
3A
D － 0.01 0
0 ＋ 0.05
（ L － C ）
C
± 0.05
C
5A
L
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
Eccentricity between D and P is 0.05 or less
E (L–C–B) ≧ 3.0
Part Number Type
M Material
H Hardness
● Calculation for the inlet diameter ＊α ＊α≒ 2 {(L−G) tan A°
2 + Gtan K° 2 } + P
(Inside) 55–60HRC depth 0.5 (Outside) 40–45HRC
PGEV □ A Standard
G
Nickel Alloy
G
L
L
E The dimension acquired using the above calculation is the theo retical (reference) value.
769
770
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