Inner Diameter SR Head Type
PIN–POINT GATE BUSHINGS WITH FLANGE INNER DIAMETER SR –B DIMENSION SELECTION TYPE–
SKH51
SKH51
L 0.01mm increments
Shape 1A
Part Number
Enlarged view of the tip
None for 2A C 0.1mm increments
Shape 3A only S° 1° increments
Shape 1A only V 0.1mm increments
Shape 4A only E R 0.1mm increments
≦ R 0.2
H D 2 G B SR
P
A° K°
( Electro discharge finishing is applied on the SR area. )
G
SR
＊
Type Shape D
6.3
2 10.00–20.00 0.3 0.4 0.5 ( ＊ 1) 2.5 10.00–25.00 0.3 0.4 0.5 0.6 ( ＊ 1)
0.2–0.4 1.3–1.9 0.2–0.5 1.5–2.4
0.4–0.8 0.6–1.0
6 3 0.7 3 0.60 7 4 1.0 4 0.75
1.6
1A
0.5 0.6 0.7 0.8 0.9 ( ＊ 2)
2.0–2.9
3
8 5
1.00 1.00 1.25 1.25 1.50 1.25 1.50 1.50 2.00
1
≦ R 0.2
20.00–40.00
0.6 0.7
0.3–0.8
0.8–1.5
1–45
1.2 6
R ≦ 0.2
2A
0 － 0.02
4
4
2.5–3.9
9 6
20
－ 0.1 － 0.2 ＋ 0.02 0
－ 0.005 0
（ L － C － B ）
0.8 0.9 1.0 1.1 1.2
D
B
PGHT ( High Speed Steel SKH51 )
（ L － C ）
2
3A
0.8 0.9 1.0
＊ This bushing has a flat area of 0–0.2 on its P dimension tip.
C
± 0.05
Eccentricity between D and P is 0.05 or less. Eccentricity between D and V is 0.05 or less
5
3.5–4.9
1.0–2.0
11 8
L
1.2 1.3 1.4 1.5 ( ＊ 3)
30
4A
1.0
Shape 2A
Enlarged view of the tip
0.5–1.5
20.00–60.00
3
6
4.0–5.9
1–50
1.5–3.0
1.5 10
12 9
＊
1.2 1.3 1.4 1.5 ( ＊ 3) 1.6 ( ＊ 3)
≦ R 0.2
( Electro discharge finishing is applied on the SR area. )
G
SR
5A
1.2 1.3 1.4
6.3
8
4.5–7.9
1–60
2.0–4.0
14 11
1.6
1.5 1.6
( ＊ 1) For P0.5 (D2)/P0.6 (D2.5), only K20° can be selected
( ＊ 2) When P0.9 (D3) and K30°, G is 1.0.
E For shape 4A, R ≧ (P/2) 2 + C 2
( ＊ 3) When P1.5/P1.6 (D5/D6) and K30°, G is 1.2.
≦ 0.2
R
0 － 0.02
4
PartNumber – L – P – A – K – CVSR PGHT1A4 – 35.01 – P0.8 – A2 – K30 – C0.5–V3.0 PGHT2A4 – 35.01 – P0.8 – A2 – K30 PGHT3A4 – 35.01 – P0.8 – A2 – K30 – C0.5–S30 PGHT4A4 – 35.01 – P0.8 – A2 – K30 – C0.5–R1.0 PGHT5A4 – 35.01 – P0.8 – A2 – K30 – C0.5
0
－ 0.1 － 0.2
D
（ L － B ）
－ 0.005
Order
B
＊ This bushing has a flat area of 0–0.2 on its P dimension tip.
＋ 0.02 0
L
Eccentricity between D and P is 0.05 or less
Shape 3A
Enlarged view of the tip
＊
≦ R 0.2
( Electro discharge finishing is applied on the SR area. )
G
SR
6.3
1.6
Quotation
Delivery
Example
≦ 0.2
R
Locating Rings （ P.701−708 ） Fixed side die plate
0 － 0.02
Runner Lock pin （ P.713−722 ）
4
0
PartNumber – L – P – A – K – CVSR –(CC/CVC … etc.) PGHT1A4 –35.01–P0.8– A2 –K30– C0.5–V3.0 – CC
D
－ 0.005
－ 0.1 － 0.2
（ L － C － B ） （ L － C ）
Alterations
B
＋ 0.05 0
＊ This bushing has a flat area of 0–0.2 on its P dimension tip.
Eccentricity between D and P is 0.05 or less
C
± 0.05
Runner Stripper Plate
L
Alterations Code
Spec.
Pin-point gate bushings
Shape 4A
Enlarged view of the tip
≦ R 0.2
C ± 0.1
Machining (C chamfering) for inlay relief. D2/2.5 → C0.2 D3/4 → C0.3 D5–8 → C0.5 Machining (C chamfering) for inlay relief. CVC = 0.1mm increments 0.2 ≦ CVC ＜ (D 2 −D) 2 −0.1
( Electro discharge finishing is applied on the SR area. )
G
SR
＊
Fixed die plate
CC
（ PGHT □ A ）
6.3
1.6
Cavity Insert
B
CVC ± 0.05
CVC
≦ R 0.2
0 － 0.02
R
B
4
＋ 0.02 0 － 0.1 － 0.2
（ L － C － B ） （ L － C ）
－ 0.005 0
C
D
B
Adds a single key flat on the head X Not available when L ＜ 20 Adds a single key flat on the head. X Not available when L ＜ 20
C
■ Features Pin–point gate bushings with head are capable of positioning at depth of counterbore of the head in vertical direction.
± 0.05
KC
＊ This bushing has a flat area of 0–0.2 on its P dimension tip.
Eccentricity between D and P is 0.05 or less
L
D 2 /2 － 0.02 0
E V = 2 × R 2 –( R 2 –(P/2) 2 –C) 2
E R ≧ (P/2) 2 + C 2
Shape 5A
Enlarged view of the tip
≦ R 0.2
WKC
( Electro discharge finishing is applied on the SR area. )
G
SR
＊
0
D 2 /2
－ 0.02
6.3
1.6
≦ 0.2
R
0 － 0.02
4
＋ 0.05 0 － 0.1 － 0.2
－ 0.005 0
D
（ L － C － B ）
C
B
（ L － C ）
C
± 0.05
＊ This bushing has a flat area of 0–0.2 on its P dimension tip.
Eccentricity between D and P is 0.05 or less
L
＊ α≒ 2SR + 2(L–G–SR)tan A° 2
● Calculation for the inlet diameter ＊ α
Part Number
M Material
H Hardness
PGHT □ A
G
SR
SR
SKH51
59–61HRC
G
L
L
E The dimension acquired using the above calculation is thetheoretical (reference) value.
757
758
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