Solid Lubricated Graphite Copper Bushing (Oil-Free Bushing) with an
Outer Diameter of 60mm and an Inner Diameter of 50mm is a type of
wear-resistant bushing that utilizes solid lubricants embedded
within the graphite copper material. This design eliminates the
need for external lubricants or oil, significantly reducing
maintenance requirements and extending the operational lifespan of
the bushing.
The graphite copper composition provides excellent wear resistance,
high thermal conductivity, and good electrical conductivity. The
solid lubricants embedded within the material ensure smooth and
reliable operation even under high loads and temperatures.
The outer diameter of 60mm and inner diameter of 50mm make this
bushing suitable for a wide range of applications where precision
fit and low friction are crucial. The oil-free design also makes it
an environmentally friendly choice, eliminating the potential for
oil leaks or spills that could contaminate the surrounding
environment.
In summary, the Solid Lubricated Graphite Copper Bushing (Oil-Free
Bushing) with an Outer Diameter of 60mm and an Inner Diameter of
50mm offers a durable, reliable, and environmentally friendly
solution for applications requiring smooth and precise bearing
performance.
Graphite Bushings And Oilless Bearings - Reduced Costs & Downtime,
Graphite Bronze Oilless Bearing outer diameter 60 inner diameters
50 metric size
60*50*25 oilless bearings
60*50*30 oilless bushing
60*50*35 oilless bushes
High tensile brass alloy solid lubricant embedded
High strength brass brass
A variety of alloys consisting of more than two elements are called
special brasses. Such as aluminum, lead, tin, manganese, nickel,
iron, silicon composition of copper alloy, high force brass is one
of them. High strength brass has strong wear resistance, high
strength brass, hardness, strong chemical corrosion resistance.
There are also machining mechanical properties that are very
superior. High strength brass is often used to manufacture sheet,
bar, bar, pipe, casting parts, etc. Chemical composition
The chemical formula of high strength brass is ZCuZn25Ai6Fe3Mn3,
which contains about 65% copper and 25% zinc. Aluminum improves the
strength, hardness, and corrosion resistance of brass. There are
three kinds of brass at room temperature: brass with zinc content
below 35%, and the microstructure at room temperature is composed
of single-phase A solid solution, known as A brass.
■ Application field
brass application is very extensive, the casting made of bearing
and bushing, domestic now mainly made of high strength brass for
matrix solid lubrication oil-free bearings (hereinafter referred to
as solid embellish bearing), is to use brass Gao Ligao strength as
a matrix, and embedded radial arranged orderly cylindrical polymer
filler for friction materials (as for graphite, 2 - molybdenum,
ethylene, oil, and other lubricants), its superiority lies in its
made of copper alloy and non-metallic antifriction material has the
respective complementary advantages, not only has the high bearing
capacity, and breakthrough - the line on the oil film bearing
grease lubrication, achieve no oil lubrication, The embedded solid
lubrication is easy to form lubrication film, which plays a great
role in improving the friction and wear performance, and is stable,
reliable and cost-effective. Compared with the composite oil-free
bearing, it has the advantages of good machinability, high
precision, strong bearing capacity, and good wear resistance. The
self-lubricating guide bush guide can be used in many fields such
as engineering machinery joints, such as excavator, mining scraper,
the rotating drill, concrete pump truck, rock drill machine, hoist,
port cranes, etc., and metallurgical machinery casting machinery,
water conservancy machinery, transportation machinery, rolling
mill, bottle blowing machine blown film machine, injection molding
machine cross-clamping differential, tires mechanism, trailer
balance beam, vacuum switch, etc.
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 |
