Inner diameter SR B Dimension Selection Type
Electroforming PIN–POINT GATE BUSHINGS INNER DIAMETER SR –STANDARD/HIGH HARDNESS B DIMENSION SELECTION TYPE–
Electroforming
B
Purple character display
Please use the D dimension designation type PGED ( P.771 ), if D dimension is designated.
Shape 1A
Enlarged view of the tip
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
G
SR
H G B SR
P
A°
6.3
Type Shape D
1.6
0.2—0.4 1.3—1.9 0.2—0.5 1.5—2.4
0.4—0.8 0.6—1.0
2 6.00—20.00 2.5 8.00—25.00
0.3 0.4
30.7 30.60 41.0 40.75
0.2
≦ 0.2
0.3 0.4 0.5
R
1A
R ≦ 0.2
（ L － C ） （ L － C － B ） － 0.05 ＋ 0.05 0 0
B
0.5 0.6 0.7 0.8 0.9 ( ＊ 1)
2.0—2.9
3
5
1.00 1.00 1.25 1.25 1.50 1.25 1.50 1.50 2.00
0
1
－ 0.01
D
± 0.05
C
1—45
10.00—40.00
0.6 0.7
0.3—0.8
0.8—1.5
1.2 6
2A
PGEB ( Standard Type )
4
2.5—3.9
6
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
L
0.8 0.9 1.0 1.2 0.8 0.9 1.0 1.2 1.4 1.5 ( ＊ 2)
Eccentricity between D and P is 0.05 or less. Eccentricity between D and V is 0.05 or less
2
3A
3.5—4.9
1.0—2.0
5
8
Shape 2A
＊
PGKB ( High hardness type )
Enlarged view of the tip
G
4A
SR
1.0
3
0.5—1.5
15.00—60.00
6
4.0—5.9
1—50
1.5—3.0
9
1.5 10
6.3
1.2 1.4 1.5 ( ＊ 2) 1.6 ( ＊ 2) 1.8 ( ＊ 4)
1.6
5A
1.2 1.4 1.5 ( ＊ 2) 1.6 1.8 ( ＊ 3) 2.0 ( ＊ 4)
8
4.5—7.9
1—60
2.0—4.0
11
0.2
≦ 0.2
R
( ＊ 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 For shape 4A, R ≧ (P/2) 2 + C 2
（ L － B ） － 0.05 0
B
0
－ 0.01
D
＋ 0.05
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
( ＊ 3) ( ＊ 4) P1.8/P2.0 are not available for PGKB.
L
0
Eccentricity between D and P is 0.05 or less
PartNumber – L – P – A – CVSR PGEB1A4 – 20.01 – P0.8 – A2 – C0.5– V3.0 PGEB2A4 – 20.01 – P0.8 – A2 PGEB3A4 – 20.01 – P0.8 – A2 – C0.5 – S30 PGEB4A4 – 20.01 – P0.8 – A2 – C0.5 – R1.0 PGEB5A4 – 20.01 – P0.8 – A2 – C0.5
＊
Shape 3A
Order
Enlarged view of the tip
G
SR
6.3
1.6
0.2
≦ 0.2
R
Quotation
Delivery
（ L － C ） （ L － C － B ） － 0.05 ＋ 0.05 0 0
Example
B
0
－ 0.01
D
± 0.05
C
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
Locating ring ( P.701 – 708 )
Part Number – L – P – A – C V S R – (CC/LKC) PGEB1A4 – 20.01 –P0.8– A2 – C0.5–V3.0 – CC
L
Eccentricity between D and P is 0.05 or less
Alterations
Fixed side die plate
Shape 4A
Enlarged view of the tip
Alterations
Code
Spec.
＊
G
SR
Runner lock pin ( P.713 – 722 )
C ± 0.1
6.3
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.
1.6
CC
0.2
Runner stripper plate
B
≦ 0.2
R
（ L － C ） （ L － C － B ） － 0.05 ＋ 0.05 0 0
B
R
0
C
－ 0.01
D
± 0.05
C
0 –0.05 c
0 –0.02 + 0.02 0 0 –0.02 + 0.02 0
(L–C–B)
Fixed die plate
1A 4A
L
＊ This bushing has a flat area of 0–0.1 on its P dimension tip.
（ PGEB □ A ） or （ PGKB □ A ） Pin-point gate bushings
+ 0.05 0
Eccentricity between D and P is 0.05 or less
(L–C)
c
E R ≧ (P/2) 2 + C 2 E V = 2 × R 2 –( R 2 – (P/2) 2 –C) 2
Cavity insert
（ L － C － B ） （ L － B ）
1A 3A 4A 5A 2A
0 –0.05 c
LKC
(L–B)
Shape 5A
Enlarged view of the tip
2A
＊
G
SR
+ 0.05 0
L
c
（ L － C ） L
1A 3A 4A 5A 2A
6.3
1.6
(L–C–B) 0 –0.02 E The tolerance of (L–C) remains 0 –0.05 c
3A
+ 0.05 0
0.2
5A
unchanged.
≦ 0.2
R
（ L － C ） （ L － C － B ） － 0.05 0
B
＋ 0.05
0
－ 0.01
D
± 0.05
C
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≒ 2SR + 2(L–G–SR) tan A° 2 SR G G SR
Part Number Type
M Material
H Hardness
(Inside) 55–60HRC depth 0.5 (Outside) 40–45HRC
PGEB □ A Standard
Nickel Alloy
55–62HRC (The inner and outer surface have the same hardness)
High Hardness
PGKB □ A
L
L
E The dimension acquired using the above calculation is the theoretical (reference) value.
763
764
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