JF Bimetallic self-lubricating bearing used high quality low-carbon steel plate as base, sintered porous bronze as its surface, suitable for rotatory oscillating, reciprocating movements on the conditions of high load.low speed, low friction, well wear resistance, long lifetime and better prevent from holding-on.The bronze layer surface can be machined with various of grooves, oil pockets in terms of different work condition.The product is widely used in mining machinery, automobile, building machinery,agriculture equipment, rolling steel industry etc.
Bushes, flanged bushes, WC thrust washers, strip and other non-standard parts and so on.
| Nominal tdickness | 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 |
| Manufacturab 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 |
| Nominal thickness | JF-800 | JF-720 | JF-700 | JF-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 |
| Otder | 0.5 | 0.5 | 0.5 | 0.5 |
| Nominal thickness | JF-800 | JF-720 | JF-700 | JF-20 | |
|---|---|---|---|---|---|
| Load limit N/mm2 | 150 | 130 | 120 | 100 | |
| Tensile strengtd N/mm2 | 150 | 150 | 200 | 200 | |
| Speed limit v max. m/s | 5 | 10 | 15 | 25 | |
| Friction coefficient(oil) | 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 class | 125 | 115 | 105 | 85 | |
| Material type | JF-800 | JF-720 | JF-700 | JF-20 |
|---|---|---|---|---|
| Specification of bronze | CuPb10Sn10 | CuPb24Sn4 | CuPb30 | AlSn20Cu |
| Equivalent standard code | USA: SAE-797 GERMANY: GLYCO 66 JAPAN: JIS-LBC3 |
USA: SAE-799 GERMANY: GLYCO 68 JAPAN: JIS-LBC6 |
USA: SAE-48 JAPAN: JIS-KJ3 |
USA: SAE-783 GERMANY: GLYCO 74 JAPAN: JIS-AJL |
| Hardness of bronze alloy HB | 70~100 | 45~70 | 30~45 | 30~40 |
| Maz.dynamic Load N/mm2 | 65 | 38 | 25 | 30 |
| Max.temperature | 260 | 200 | 170 | 150 |
| Remark | The strongest type, wide application field, most suitable for high impact vibrating load bushes and Washers. | Relative high fatigue strength & load capacity, good sliding performance. poor oil corrosion resistance. Fit for middle load, middle speed. Normally applied in main bushes of lnner-combustion engine. Connecting rod when plated. | Good seizuring resistance good capacity to submerge foreign, overlayer plated normally applied in main bearings of high speed, low to morderate load inner-combustion engine & connecting rod bearing． | Moderate fatigue strength & load capacity, good corrosion resistance, relative good sliding performance. Normally they are applied in half bush with high speed, low load inner combustion engine, air compressor, refrigerator bearings. |
