Inner diameter SR B Dimension Selection Type
Electroforming PIN–POINT GATE BUSHINGS INNER DIAMETER SR –STANDARD/HIGH HARDNESS B DIMENSION DESIGNATION TYPE–
Electroforming
B
Purple character display
Please use the D dimension designation type PGED ( P.771 ), if D dimension is designated.
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
Shape 1A
L 0.01mm increments
B 0.01mm increments
Enlarged view of the tip
H G SR
P
A°
＊
SR
G
Type Shape D
6.3
1.6
1 2 3 1 2 3
0.3 0.4
3.00– 5.00 0.2–0.4 1.3–1.9
0.4–0.8
2 6.00–20.00
3 0.7 0.60
0.2
≦ R 0.2
R ≦ 0.2
（
0 L － C － B ） － 0.05
B
2.5 8.00–25.00 0.3 0.4 0.5
4.00– 6.00 0.2–0.5 1.5–2.4
0.6–1.0
4 1.0 0.75
＋ 0.05
0
（ L － C ）
－ 0.01
D
± 0.05
C
0
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
1 5.00– 9.00 2 5.00– 8.00 3 5.00– 7.00 1 5.00–30.00 2 5.00–30.00 3 5.00–20.00 1 5.00–30.00 2 5.00–30.00 3 5.00–20.00 1 5.00–35.00 2 5.00–30.00 3 5.00–30.00 1 5.00–30.00 2 5.00–30.00 3 5.00–20.00 1 5.00–50.00 2 5.00–50.00 3 5.00–40.00 1 5.00–40.00 2 5.00–40.00 3 5.00–30.00
Eccentricity between D and P is 0.05 or less. Eccentricity between D and V is 0.05 or less
L
0.5 0.6 0.7 0.8 0.9 ( ＊ 1)
2.0–2.9
3
5
1.00
E (L–C–B) ≧ 3.0
1A
Shape 2A
Enlarged view of the tip
＊
0.6 0.7
0.3–0.8
0.8–1.5
10.00–40.00
1–45
1.00
1.2
SR
G
2.5–3.9
4
6
6.3
2A
1.6
0.8 0.9 1.0 1.2
1.25
PGE ( Standard Type )
0.2
≦ R 0.2
0.8 0.9 1.0
3A
1.25
（ L － B ）
0 －
B
0.05
PGK ( High hardness type )
0
3.5–4.9
1.0–2.0
5
8
－ 0.01
D
＋ 0.05
1.2 1.4 1.5 ( ＊ 2)
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
1.50
L
0
Eccentricity between D and P is 0.05 or less
4A
E (L–B) ≧ 3.0 Shape 3A
＊
1.0
1.25
Enlarged view of the tip
SR
G
4.0–5.9 1–50 1.5–3.0
6
0.5–1.5
15.00–60.00
9
1.5
1.2 1.4 1.5 ( ＊ 2) 1.6 ( ＊ 2) 1.8 ( ＊ 4)
5A
6.3
1.50
1.6
1 2 3 1 2 3
0.2
1.2 1.4 1.5 ( ＊ 2)
1.50
≦ 0.2
R
（
L － C － B ） － 0.05 0
B
5.00–50.00
4.5–7.9 1–60 2.0–4.0
8
11
＋ 0.05
0
（ L － C ）
1.6 1.8 ( ＊ 3) 2.0 ( ＊ 4)
－ 0.01
D
± 0.05
C
0
2.00
＊ 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
E For shape 4A, R ≧ (P/2) 2 + C 2
( ＊ 1) When P0.9(D3), G is 1.0 ( ＊ 2) When P1.5/P1.6 (D6), G is 1.2. ( ＊ 3) When P1.8(D8), G is 1.1 ( ＊ 4) When P1.8(D6), P2.0(D8), G is 0.8.
E (L–C–B) ≧ 3.0
Shape 4A
Enlarged view of the tip
＊
SR
G
( ＊ 3) ( ＊ 4) P1.8/P2.0 are not available for PGK.
6.3
1.6
PartNumber – L – P – A – B – CVSR PGE1A4 – 20.01 – P0.8 – A2 – B15.00 – C0.5–V3.0 PGE2A4 – 20.01 – P0.8 – A2 – B15.00 PGE3A4 – 20.01 – P0.8 – A2 – B15.00 – C0.5 – S30 PGE4A4 – 20.01 – P0.8 – A2 – B15.00 – C0.5 – R1.0 PGE5A4 – 20.01 – P0.8 – A2 – B15.00 – C0.5
Example
Locating ring ( P.701 – 708 )
Order
0.2
Fixed side die plate
≦ 0.2
R
0 （ L － C － B ） － 0.05
B
R
Runner lock pin ( P.713 ‒ 722 )
＋ 0.05
0
（ L － C ）
－ 0.01
D
± 0.05
C
0
C
Runner stripper plate
Eccentricity between D and P is 0.05 or less
L
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
Delivery Quotation
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
Fixed die plate
Pin-point gate bushings （ PGE □ A ） or （ PGK □ A ）
Shape 5A
Enlarged view of the tip
＊
PartNumber – L – P – A – B – C V S R – (CC/LKC) PGE1A4 – 20.01 – P0.8 – A2 – B15.00 – C0.5–V3.0 – CC
SR
G
Cavity insert
Alterations
6.3
1.6
Alterations
Code
Spec.
0.2
C ± 0.1
Machining (C chamfering) for inlay relief. D2/2.5 → C0.2 D3/4 → C0.3 D5–8 → C0.5 Change the tolerances of the dimensions below. 1A 4A (L–C–B) 0 –0.05 c 0 –0.02 (L–C) + 0.05 0 c + 0.02 0
≦ 0.2
R
CC
（ L － C － B ）
0
－ 0.05
B
＋ 0.05
0
B
（ L － C ）
－ 0.01
D
± 0.05
C
0
C
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
● Calculation for the inlet diameter ＊α ＊α≒ 2SR + 2 (L–G–SR) tan A° 2 SR G G SR
（ L － C － B ） （ L － B ）
0 –0.05 c
0 –0.02 + 0.02 0
1A 3A 4A 5A 2A
Part Number Type
M Material
H Hardness
(L–B)
LKC
2A
+ 0.05 0
(Inside) 55–60HRC depth 0.5 (Outside) 40–45HRC
L
PGE □ A
c
Standard
（ L － C ） L
(L–C–B) 0 –0.02 E The tolerance of (L–C) remains 0 –0.05 c
1A 3A 4A 5A 2A
3A
Nickel Alloy
55–62HRC (The inner and outer surface have the same hardness)
High Hardness
PGK □ A
+ 0.05 0
5A
unchanged.
L
L
E The dimension acquired using the above calculation is the theoretical (reference) value.
767
768
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