Leadfree Thin Walled Metric Sizes Bi Metal Bearings With Grooves
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Bimetal Lead-Free Plain Thin Walled Bearing Imperial & Metric Sizes Bush With GroovesBushing Manufacturer & Exporter - Bimetal Bearings Manufacturer & ExporterWe believe that by being creative and constantly striving to challenge ourselves we provide the highest-quality bimetal bearingfrom china.
The bimetal bushing is steel backed with high-quality with tin-
Support wheel Bushings, guide wheel bushing, bushing replacement parts
Bimetal Lead-Free Plain BearingsBushings Selection
Bimetal bearing bushes have high-performance environmentally friendly dual metal bearings that are customer-specified products. bimetal bearing bushes use low-carbon steel plate as supporting base and powder metallurgy sintering and rolling processes to form a leadless CuSn8Ni steel-copper alloy product. The materials in this product meet RoHS directory/regulation/rule, under certain circumstances can substitute for JF800 products. bimetal bearing bushes have a high load-bearing capacity and good wear-resistance. Its shortcoming is that it cannot be used without oil lubrication. In places where oil lubrication is sufficient, bimetal bearing bushes have superior performance.
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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 following 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 the butt joint and loading area and designed to be easy-oil-feeding 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 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 |
| Bimetal Bushing chemical composition | ||||
| Tolerance 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 | - | - | - | |
| Si | - | - | - | 0.7 |
| Mn | - | - | - | 0.7 |
| Ti | - | - | - | 0.2 |
| Other | 0.5 | 0.5 | 0.5 | 0.5 |
| Bimetel 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 | |
Type:-Flanged
-Solid Bronze
-Welded Joint
-Split Joint
-Clench Lock
-Sintered / Powder Metal
-Graphite Impregnated
Application
The bimetal bushing will most notably benefit transmissions and truck brakes as well as agricultural, mechanical handling and lifting applications. They boast a high load capaci
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