 Tpees for JF bush's grovves indentations |
|
|
| Lock types of JF wrapped bushes |
|
|
| The designing of oil indentations |
| In order to fully lubricate the bush when in the performance,the indentations with size as flows are recommended.They should be manufactured according to the standard below if withoutspecial requirements. |
|
|
14~22 |
22!44 |
40~50 |
50~100 |
100~180 |
|
3 |
3 |
3 |
6 |
7 |
The lubricating hole should be away from butt joint and loading area and designed to by easy-oil feeding as well.
|
|
| Thickness of the JF double layer metal and their tolerances |
|
|
1
|
1.5
|
2
|
2.5
|
3
|
3.5
|
4
|
5
|
Thickness of steel backing
|
0.6
|
1
|
1.4
|
1.9
|
2.3
|
2.8
|
3.2
|
4
|
Thickness of bronze layer
|
0.4
|
0.5
|
0.6
|
0.6
|
0.7
|
0.7
|
0.8
|
1.0
|
Manufacturable Wall Thickness
|
1+0.25
+0.15
|
1.5+0.25
+0.15
|
2+0.25
+0.15
|
2.5+0.25
+0.15
|
3+0.25
+0.15
|
3.5+0.25
+0.15
|
4+0.25
+0.15
|
4+0.25
+0.15
|
Manufactured wall Thickness
|
1-0.025
|
1.5-0.03
|
2-0.035
|
2.5-0.04
|
3-0.045
|
3.5-0.05
|
4-0.055
|
4-0.06
|
|
| Composition analysis of jf alloy |
|
|
HTB-800
|
HTB-720
|
HTB-700
|
HTB-20
|
|
Cu
|
Remainder
|
Remainder
|
Remainder
|
0.7~1.3
|
|
Pb
|
9.0~11.0
|
21.0~27.0
|
26.0~33.0
|
-
|
|
Sn
|
9.0~11.0
|
3.0~4.5
|
0.5
|
17.5~22.5
|
|
Zn
|
0.5
|
0.5
|
0.5
|
-
|
|
P
|
0.1
|
0.1
|
0.1
|
|
|
Fe
|
0.7
|
0.7
|
0.7
|
0.7
|
|
Ni
|
0.5
|
0.5
|
0.5
|
0.1
|
|
Sb
|
0.2
|
0.2
|
0.2
|
-
|
|
Ai
|
-
|
-
|
-
|
Remainder
|
|
Si
|
-
|
-
|
-
|
0.7
|
|
Mn
|
-
|
-
|
-
|
0.7
|
|
Ti
|
-
|
-
|
-
|
0.2
|
|
Other
|
0.5
|
0.5
|
0.5
|
0.5
|
|
| JF Bimetal bushing Physical Characteristics |
|
|
HTB-800
|
HTB-720
|
HTB-700
|
HTB-20
|
|
|
150
|
130
|
120
|
100
|
|
|
150
|
150
|
200
|
200
|
|
|
5
|
10
|
15
|
25
|
|
|
0.06~0.14
|
0.06~0.16
|
0.08~0.16
|
0.08~0.17
|
|
PV Limit
N/mm2 m/s
|
|
2.8
|
2.8
|
2.5
|
-
|
|
|
10
|
10
|
8
|
6
|
"Sapphire" Fatigue Clasee Mpa
|
125
|
115
|
105
|
85
|
|
