Graphite Bronze Oilless Bearing 2820
The Graphite Bronze Oilless Bearing 2820 is a high-performance, maintenance-free bearing solution that utilizes the unique properties of graphite bronze to provide smooth, friction-free rotation. This bearing is designed for applications where lubrication is difficult or undesirable, such as in vacuum environments or where contamination must be minimized.
Graphite Bushings And Oilless Bearings - Reduced Costs & Downtime, Graphite Bronze Oilless Bearing 2820
28*20*10mm
28*20*12mm
28*20*15mm
High tensile brass alloy solid lubricant embedded
High-Quality Solid Bushings Supplier, Straight bushings, Solid Bearings, Brass Bushings, Plugged graphite
Solid Bronze Bushings, Plugged graphite brass bushes.
Application fields:
1. Special bearings for construction machinery
2. Special bearings for injection molding machinery
3. Special bearings for molds
4. Automobile: air conditioning compressor, fuel pump, gearbox, shock absorber, starting motor, etc
5. Hydraulic components: gear pump, piston pump, vane pump, compressor, oil cylinder, etc
6. Logistics and port machinery: outdoor logistics machinery such as moving truck, stacker, lifting platform truck, and port machinery
7. Stamping, forging, and pressing machinery
8. Agricultural machinery: combine harvester, seeder, bale baler, grinder, tractor and another cylinder, suspension system, joint parts and other parts that can not be refueled or difficult to form oil film
9. Office equipment: facsimile machine, copier, shredder, scanner, printer and other joint and reciprocating moving parts
10. Food machinery
11. Energy facilities: environmentally friendly new energy such as wind power generation, solar power generation, water conservancy power generation and other convenient use
12. Fitness and entertainment equipment
Bronze Bearings Alloy Material
| Model/corresponding brand | JDB-1 | JDB-2 | JDB-3 | JDB-4 | JDB-5 | ||
|---|---|---|---|---|---|---|---|
| JDB-2 | JDB-22 | JDB-23 | |||||
| GB1776-87 | ZCuZn25 Al6Fe3Mn3 |
ZCuSn6Zn6Pb3 | ZCuAl10Fe3 | ZCuSu10P1 | steel+ ZCuSn6Zn6Pb3 | HT250 | GCr15 |
| ISO1338 | GCuZn25 Al6Fe3Mn3 |
GCuSn6Zn6Pb3 | GCuAl10Fe3 | - | steel+ CuSn6Zn6Pb3 Fe3Ni5 |
- | B1 |
| DIN | G-CuZn25 Al5 |
GB-CuSn5Zn5Pb5 | GB-CuAl10Ni | GB-CuSn10 | steel+ CuSn6Zn6Pb3Ni | - | 100Cr6 |
| JIS | HBsC4 | BC6 | AIBC3 | BC3 | BC6 | FC250 | SUJ2 |
| ASTM/UNS | C86300 | C83600 | C95500 | C90500 | C83600 | Class40 | 52100 |
| (BS) | HTB2 | LG2 | AB1 | PB4 | LG2 | - | - |
Bronze Bearings Material composition and properties
| chemical composition | CuZn25Al5Mn3Fe3 | CuZn25Al5Mn3Fe3 | CuAl9Fe4Ni4Mn2 | CuSn5Pb5Zn5 | CuSn12 | HT250 | Gcr15 |
| density(g/cm³) | 8.0 | 8.0 | 8.5 | 8.9 | 9.05 | 7.3 | 7.8 |
| hardness (HB) | ＞210 | ＞250 | ＞150 | ＞70 | ＞80 | ＞190 | HRC＞58 |
| Tensile strength (N/mm²) | ＞750 | ＞800 | ＞800 | ＞200 | ＞260 | ＞250 | ＞1500 |
| elongation (%) | ＞12 | ＞8 | ＞15 | ＞10 | ＞8 | ＞5 | ＞15 |
| Coefficient of linear expansion | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1.0 | 1.1 |
| The use of temperature(℃) | -40~+300 | -40~+150 | -40~+400 | -40~+400 | -40~+400 | -40~+400 | -40~+400 |
| Maximum dynamic load(N/mm²) | 100 | 120 | 150 | 60 | 70 | 80 | 200 |
| Maximum linear velocity(m/min) | 15 | 15 | 20 | 10 | 10 | 8 | 5 |
| Maximum PV value lubrication (N/mm²*m/min) |
200 | 200 | 60 | 60 | 80 | 40 | 150 |
| Amount of permanent compression deformation (300N/mm²) |
＜0.01 | ＜0.005 | ＜0.04 | ＜0.05 | ＜0.05 | ＜0.015 | ＜0.002 |
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