The brass graphite copper sleeve is a compact, self-lubricating
bearing component designed specifically for small size
applications. Its unique combination of brass, graphite, and copper
materials offers several advantages that make it an ideal choice
for a wide range of demanding applications.
Brass, a common alloy composed primarily of copper and zinc,
provides the sleeve with excellent strength and durability. It is
resistant to corrosion and oxidation, ensuring that the sleeve
maintains its structural integrity and performance over time.
Graphite, a naturally occurring mineral, is known for its
exceptional lubricating properties. Embedded within the brass
matrix, the graphite particles provide a continuous lubricating
film between the sleeve and the mating surface. This film
significantly reduces friction and wear, allowing the sleeve to
operate smoothly and efficiently.
The addition of copper further enhances the sleeve's performance.
Copper is a soft, ductile metal that improves the overall
machinability and wear resistance of the brass alloy. It also
contributes to the sleeve's excellent thermal conductivity,
enabling it to dissipate heat effectively during operation.
The compact size of the brass graphite copper sleeve makes it
suitable for applications where space is limited. Its
self-lubricating properties eliminate the need for external
lubricants, reducing maintenance requirements and improving
reliability.
In summary, the brass graphite copper sleeve is a versatile and
reliable bearing component for small size applications. Its unique
material combination offers superior strength, durability, and
lubricating properties that ensure smooth operation and extended
service life.
High power brass graphite copper sleeve self-lubricating linear
bearing copper sleeve
18*12*6mm Brass Graphite Copper Sleeve Self-Lubricating Small Size
18*12*8mm Brass Graphite Copper Sleeve Self-Lubricating Small Size
18*12*10 mm Brass Graphite Copper Sleeve Self-Lubricating Small Size
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 |
