KSOB650 NAAMS standard bushing is a kind of self lubricating brass bushings. Self-lubricating, high strength copper alloy with solid lubricates plugs, machining as standard request. This kind oilless bushing was made by high strength bronze material insert solid lubricates.
The bronze material basic on C86300. HBSC4. CAC304 standard.
The oilless guide bushing can apply in high loading and high temperature working environment.
High speed stamping press die, and high loading press die cam unit or press dies, SG61 NAAMS standard bushing,
CODE |
D1 |
D2 |
D3 |
D4 |
L1 |
R1 |
L2 |
G612540 |
25 |
32 |
40 |
32 |
40 |
4 |
30 |
G613250 |
32 |
40 |
50 |
40 |
50 |
4 |
40 |
G614063 |
40 |
50 |
63 |
50 |
63 |
5 |
50 |
G615071 |
50 |
63 |
80 |
63 |
71 |
6 |
56 |
G616380 |
63 |
80 |
100 |
80 |
80 |
8 |
63 |
G618010 |
80 |
100 |
125 |
100 |
100 |
10 |
80 |
G611012 |
100 |
125 |
140 |
125 |
125 |
12 |
106 |
G611114 |
115 |
140 |
155 |
140 |
140 |
12 |
120 |
G611216 |
125 |
160 |
180 |
160 |
160 |
12 |
132 |
Material Compostion and Properties
Standard |
JDB Casted Bronze (KSOB650)) |
JDB -1 Bronze (KSOB650S1)) |
JDB -2 Bronze (KSOB650S2) |
JDB -3 Bronze (KSOB650S3) |
JDB -5 Bronze (KSOB650S4) |
Material |
CuZn25Al5Mn4Fe3 |
CuSn5Pb5Zn5 |
CuAl10Ni5Fe5 |
CuSn12 |
CuZn25Al5Mn4Fe3 |
Density |
8 |
8.9 |
7.8 |
8.9 |
8 |
Hardness HB |
>210 |
>70 |
>150 |
>95 |
>250 |
Tensile strength N/mm² |
>750 |
>200 |
>600 |
>260 |
>800 |
Yield strength N/mm² |
>450 |
>90 |
>260 |
>150 |
>450 |
Elongation % |
>12 |
>15 |
>10 |
>8 |
>8 |
Coefficien of linear expansion 10-5/℃ |
1.9 |
1.8 |
1.6 |
1.8 |
1.9 |
Limit Temp ℃ ℃ |
-40~+300 |
-40~+400 |
-40~+400 |
-40~+400 |
-40~+150 |
Max.load N/mm² |
100 |
60 |
50 |
70 |
120 |
Max.speed (Dry) m/min |
15 |
10 |
20 |
10 |
15 |
Max.PV N/mm² *m/min |
-40~+300 |
-40~+400 |
-40~+400 |
-40~+400 |
-40~+150 |
Compression of permanent deformation 300N/mm² |
<0.01 |
<0.05 |
<0.04 |
<0.05 |
<0.05 |
Why should use self-lubricating brass bushing to be naams standard bushing?
Due to better lubrication function, this is better to long life press on mould for guide elements.
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