| Type for Bi-Metaltic Bushing Grooves and Indents |
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| Lock Types for Bi-Metaltic Bushing |
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| The designing of oil indentations | ||||||
| In order to fully lubricate the bush when in the performance, the indentations with size as follow are recommended. They should be manufactured according to the standard below if without special requirements. | ||||||
| Bush O.D | More than to | 14~22 | 22!44 | 40~50 | 50~100 | 100~180 |
| Lubricating hole | 3 | 3 | 3 | 6 | 7 | |
| The lubricating hole should be away from butt joint and loading area and designed to be easy-oil-feding as well. | ||||||
| Normal thickness of the JF bimetal and their tolerances | ||||||||
| Tolerance Thickness | 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 leyer | 0.4 | 0.5 | 0.6 | 0.6 | 0.7 | 0.7 | 0.8 | 1.0 |
| Manufactuable 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 |
| Manufactued 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 |
| JF JF Bimetel Bushing chemical composition | ||||
| Tolerance Thickness | JF-800 | JF-720 | JF-700 | JF-20 |
| Cu | 余量 Remainder | 余量 Remainder | 余量 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 | - | - | - | 余量 Remainder |
| Si | - | - | - | 0.7 |
| Mn | - | - | - | 0.7 |
| Ti | - | - | - | 0.2 |
| 其它 Other | 0.5 | 0.5 | 0.5 | 0.5 |
| JFBimetel Bushing Physical properties | |||||
| Physical properties | JF-800 | JF-720 | JF-700 | JF-20 | |
| Max. static load pressure N/mm2 | 150 | 130 | 120 | 100 | |
| Tensile strength N/mm2 | 150 | 150 | 200 | 200 | |
| Max. speed(oil) m/s | 5 | 10 | 15 | 25 | |
| Friction coef(Oill) | 0.06~0.14 | 0.06~0.16 | 0.08~0.16 | 0.08~0.17 | |
| PV limit N/mm2 m/s | Grease | 2.8 | 2.8 | 2.5 | - |
| Oil | 10 | 10 | 8 | 6 | |
| “Sapphire Fatigue Calss Mpa | 125 | 115 | 105 | 85 | |