Inner diameter SR B Dimension Selection Type
Electroforming PIN–POINT GATE BUSHINGS INNER DIAMETER TAPERED –STANDARD/B DIMENSION SELECTION 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
L 0.01mm increments
Enlarged view of the tip
＊
H G B
P
A° K°
G
Type Shape D
6.3
1.6
1A 2A 3A 4A 5A
3
0.6 0.8
2.0–2.9
5
0.2
0.3–0.8
10.00–40.00
0.8–1.5
1.2 6
≦ R 0.2
2
30
4
0.6 0.8 1.0 1.2
2.5–3.9
1–45
6
R ≦ 0.2
（
0 L － C － B ） － 0.05
PGEBV ( Standard Type )
B
＋ 0.05
D － 0.01 0
（ L － C ）
± 0.05
C
0
1.0 1.2 1.4
3.5–4.9
1.0–2.0
5
8
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
3
40
Eccentricity between D and P is 0.05 or less. Eccentricity between D and V is 0.05 or less
L
0.5–1.5
15.00–60.00
1.5 10
6
1.0 1.2 1.4
4.0–5.9
1–50
1.5–3.0
9
Shape 2A
＊
Enlarged view of the tip
E For shape 4A, R ≧ (P/2) 2 + C 2
G
6.3
PartNumber – L – P – A – K – CVSR PGEBV1A4 – 20.01 – P0.8 – A2 – 30 – C0.5– V3.0 PGEBV2A4 – 20.01 – P0.8 – A2 – 30 PGEBV3A4 – 20.01 – P0.8 – A2 – 30 – C0.5 – S30 PGEBV4A4 – 20.01 – P0.8 – A2 – 30 – C0.5 – R1.0 PGEBV5A4 – 20.01 – P0.8 – A2 – 30 – C0.5
1.6
Order
0.2
≦ R 0.2
（ L － B ）
0 －
B
0.05
D － 0.01 0
＋ 0.05
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
L
0
Eccentricity between D and P is 0.05 or less
Delivery Quotation
Example
＊
Shape 3A
Enlarged view of the tip
Locating ring ( P.701 – 708 )
G
6.3
Fixed side die plate
PartNumber – L – P – A – K – C V S R – (CC/LKC) PGEBV1A4 –20.01–P0.8– A2 – 30 – C0.5–V3.0 – CC
1.6
Alterations
0.2
Runner lock pin ( P.713 – 722 )
≦ R 0.2 B
Alterations
Code
Spec.
（ L － C － B ）
0 －
0.05
C ± 0.1
D － 0.01 0
＋ 0.05
Machining (C chamfering) for inlay relief.
（ L － C ）
± 0.05 C
0
Runner stripper plate
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
CC
D3/4 → C0.3 D5/6 → C0.5
L
Eccentricity between D and P is 0.05 or less
B
Change the tolerances of the dimensions below.
Shape 4A
Enlarged view of the tip
Fixed die plate
＊
G
( PGEBV □ A ) Pin-point gate bushings
0 –0.05 c
0 –0.02
(L–C–B)
1A 4A
6.3
1.6
Cavity insert
+ 0.05 0
+ 0.02 0
(L–C)
c
0.2
（ L － C － B ） （ L － B ）
1A 3A 4A 5A 2A
0 –0.05 c
0 –0.02
LKC
(L–B)
≦ R 0.2 B
2A
（ L － C － B ）
0 －
+ 0.05 0
+ 0.02 0
R
0.05
L
c
（ L － C ） L
D － 0.01 0
＋ 0.05
1A 3A 4A 5A 2A
C
（ L － C ）
± 0.05 C
0
(L–C–B) 0 –0.02 E The tolerance of (L–C) remains + 0.05 0 unchanged. 0 –0.05 c
3A
＊ 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
5A
E R ≧ (P/2) 2 + C 2 E V = 2 × R 2 –( R 2 – (P/2) 2 –C) 2
Shape 5A
Enlarged view of the tip
＊
G
6.3
1.6
0.2
≦ R 0.2 B
（ L － C － B ）
－ 0.05 0
D － 0.01 0
＋
（ L － C ）
0.05
C
± 0.05 C
0
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
● Calculation for the inlet diameter ＊α ＊α≒ 2 {(L–G) tan A° 2 + Gtan K° 2 } + P G G
Part Number
Type
M Material
H Hardness
(Inside) 55–60HRC depth 0.5 (Outside) 40–45HRC
PGEBV □ A Standard
Nickel Alloy
L
L
E The dimension acquired using the above calculation is the theoretical (reference) value.
765
766
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