The Metric Size Damper Graphite Plugged Brass Bush Oilless is a
precision-engineered component designed to operate smoothly without
the need for lubrication. Constructed from high-quality brass, it
features a graphite plug that provides excellent wear resistance
and damping properties.
The oilless design of this bush eliminates the need for regular
lubrication, reducing maintenance costs and downtime. This feature
also contributes to its long-term durability and reliability.
The metric size of this bush ensures a perfect fit in various
industrial applications, including machinery and equipment that
require precision movement. The graphite plug not only enhances
lubrication but also acts as a damper, reducing vibration and
noise.
Wh you're upgrading existing equipment or installing new machinery,
the Metric Size Damper Graphite Plugged Brass Bush Oilless is an
excellent choice for improving performance and enhancing the
overall efficiency of your industrial operations. Contact us today
to learn more about this bush and how it can meet your specific
requirements.
Graphite plugged brass bushing is a type of solid metal bearing.
This type of self-lubricating bearing is also called #500 oilless
bearing,brass bearing, cooper bushing, solid sliding bearing, guide
bushing, and graphite filled bearing.
An oilless sliding bearing which shows its great effectiveness in
places which are diffi cult to oil, or where the lubricating effect
cannot be maintained. With a high-strength brass base and embedded
solid lubricant, it is an oilless type which can be used in places
with a high load.
high-strength copper alloy as base material, according to the use
conditions by a certain percentage of its working surface machined
hole and fill one solid lubricant. High-strength copper alloy
provides a high load carrying capacity and the solid lubricant can
be formed lower friction. Under dry friction condition of our
pre-designed layer of lubricating film in the bearing surface to
ensure that in the shortest possible time will be transferred to
the solid lubricant on the coupling member and form a valid solid
lubricant film
Graphite Plugged Brass Bush Alloy materials
| Model | JDB-1 | JDB-2 | JDB-3 | JDB-4 | JDB-5 |
|---|
Grade
China Brands
GB1776-87 | ZCuZn25
AI6Fe3Mn3 | ZCuSn6Zn6Pb3 | ZCuAI10Fe3 | ZCuSu10P1 | Steel+ZCuSn6Zn6Pb3 | HT250 | GCr15 |
International
ISO1338 | GCuZn25
AI6Fe3Mn3 | GCuSn6Zn6Pb3 | GCuAI10Fe3 | CuSn12 | Steel+CuSn6Zn6Pb3Fe3Ni5 | - | B1 |
Germany
DIN | G-CuZn25
AI5 | GB-CuSn5Zn5Pb5 | GB-CuAI10Ni | GB-CuSn10 | Steel+CuSn6Zn6Pb3Ni | - | 100Cr6 |
Japanese
JIS | HBsC4 | BC6 | AIBC3 | BC3 | BC6 | FC250 | SUJ2 |
United States
ASTM/UNS | C86300 | C83600 | C95500 | C90800 | C83600 | Class40 | 52100 |
| British Standard | HTB2 | LG2 | AB1 | PB4 | LG2 | - | - |
Material alloy chemical composition
| Chemical Elements | JDB-1 | JDB-2 | JDB-3 | JDB-4 | JDB-5 |
|---|
| Cu ( % ) | Rest | Rest | Rest | - | - |
| Sn ( % ) | - | 6 | - | 10 | 6 | - | - |
| Zn ( % ) | 25 | 6 | - | - | 6 | - | - |
| Ni ( % ) | - | - | - | - | - | - | - |
| AI ( % ) | 6 | - | 10 | - | - | - | - |
| Fe ( % ) | 3 | - | 3 | - | - | Rest | Rest |
| Mn ( % ) | 3 | - | - | - | - | 0.905 - 1.3 | 0.20 - 0.40 |
| Cr ( % ) | - | - | - | - | - | - | 1.30 - 1.65 |
| C ( % ) | - | - | - | - | - | 2.5 - 4 | 0.95 - 1.05 |
| Si ( % ) | - | - | - | - | - | 1.0 - 1.3 | 0.15 -0.35 |
| Pb ( % ) | - | 3 | - | - | 3 | - | - |
Technical Parameters
| Performance | JDB-1 | JDB-2 | JDB-3 | JDB-4 | JDB-5 |
|---|
| Max.load P ( N/mm² ) | 100 | 60 | 70 | 60 | 250 |
| Max.speed V ( m/s ) | Dry0.4 oil5 | 2 | 2 | 0.5 | 0.1 |
| Max.PV ( N/mm²·m/s ) | 3.8 | 0.5 | 0.6 | 0.8 | 2.5 |
| Density ρ( g/cmsup3 ) | 8.0 | 8.0 | 7.6 | 7.3 | 7.8 |
| Tensile strength ( N/mm² ) | > 600 | > 250 | > 500 | > 250 | > 1500 |
| Elongation ( % ) | > 10 | > 4 | > 10 | - | - |
| Hardness ( HB ) | > 210 | > 80 | > 80 | > 160 | HRC> 55 |
| Max.temp ( ℃ ) | 300 | 350 | 300 | 400 | 350 |
| Friction coef. ( μ ) | Oil lubrication: 0.03 | Friction(dry): 0.16 |
1. The flexible design, simple and convenient, using a wide range;
Oil supply system in the mechanical design is a lot of work,
time-consuming device, the use of solid self-lubricating bearings
need not be considered in the design of fuel means saving fuel
plant equipment, and can for a variety of special occasions, the
solid self-lubricating bearings designed into a variety of shapes
to meet the needs of a variety of special occasions, the use of
solid self-lubricating bearings, can significantly reduce the
mechanical maintenance, fuel and other expenses.
2. No oil can be used;
Since the linear expansion coefficient greater than the solid
lubricant from the metal substrate, so when solid self-lubricating
bearings start running, the film will be transferred to the
grinding member of the realized self-lubricating, so solid
self-lubricating bearings can be difficult to use in refueling and
can not refuel or fat place, even in the case of low-speed
high-load, but also can play a good lubrication.
3. The use of low cost;
Traditional mechanical design, in a certain operating time,
refueling and maintenance should always check the fuel gauge, oil
installations is smooth, due to regularly refuel the body itself
and cause pollution of the surrounding environment, resulting in
increase of the maintenance costs and achieve after
self-lubricating, not only can make the environment clean, but also
greatly reduce the use of lubricant costs.
4. The high-load, low-speed conditions, can play a superior
performance;
Solid self-lubricating bearings are used centrifugal casting
high-strength brass alloy as a matrix, play a role in carrying the
load, graphite has good self-lubricating properties of specially
formulated as a lubricant, play a role in self-lubricating, it
combines them the respective merits, even under high load, low
speed conditions, can play a superior performance.
5. The reciprocating motion, rocking motion, and frequent start and
stop the film formation difficult place to play excellent wear
resistance;
The solid lubricant self-lubricating bearings are arranged
principle is to ensure that all parts of the grinding member has a
lubricant effect during operation of the thus arranged with the
lubricant must be based on the direction of movement of the
grinding member arranged to determine the position of the
lubricant.
6. superior chemical resistance and corrosion resistance;
Solid self-lubricating bearing lubricant is specially formulated
with graphite, , molybdenum disulfide and other wear-resistant
material, which has a stable molecular structure, metal matrix can
have different chemical resistance and corrosion resistance
depending on the metal of selected, solid self-lubricating bearings
and therefore has excellent chemical resistance and corrosion
resistance.
7. The cost of the product more competitive, compared with similar
products, long working life, required little maintenance,
replacement replacement cycle is long, a good performance.
Modern design for today's self-lubricating bearing material is
undergoing tremendous demand. Even in the severe operating
environment and maximum extreme load conditions also require
maintenance. As the cost of the increasing demand, business
equipment and plant operation reliability requirements are also
increasing. Metal self-lubricating bearings to meet the long-term
maintenance-free and under the conditions of use of
self-lubricating, thus making the design of a long-term reliable
self-lubricating system possible. Metal type self-lubricating
bearing material can be widely used in high-load low speed rotation
conditions, swivel and linear reciprocating motion, but also for
conventional lubrication can not be achieved or prohibit the use of
the occasion, or in special conditions such as dust, shock load or
irradiation conditions require long-term and stable use.
1. No oil supply device, hole injection, fuel tank processing
Cost of oil installations, processing fees, saving assembly fees,
extra costs and time, and can significantly reduce manufacturing
costs.
2. Lower operating costs
Significantly reduce the use of lubricants and equipment
maintenance costs, while also eliminating the risk due to lack of
oil supply caused.
3. Shorten design time
Non-oil can make the design and structure greatly simplified,
reducing costs, saving design time. In addition, the use of
self-lubricating bearings can also improve the mechanical
properties, extend life and improve reliability, achieve
significant results.
4. Oil recovery and environmental protection
No waste oil recycling, are environmentally friendly.
JDB (500 # SP) self-lubricating bearing as machinery parts and
components industry, there is some use in a broad sense. In order
to make the mechanical drive is operating normally, a lot of
effort. The bearing is divided into Rolling and plain bearings.
General sliding bearings
Under high load movement, foreign matter, the temperature
condition, fuel, maintenance, etc. imperfect, it can cause nap.
Under harsh conditions are generally plain bearings can not be
used, solid mosaic self-lubricating metal shaft like this
Order of the abrasion resistance of the nap, play bearing proper
performance, to achieve the role of mechanical performance and
maintenance-free maintenance.
1. Where possible, try to use standard design;
2. Please note that the surface of any foreign body assembly;
3. Sliding surface after use, because the solid lubricant film
formation results in a surface with black or gray-black phenomenon,
please do not scrub, as usual;
4. Before assembly, if the lubricating oil applied to the wear
parts, can shorten the running-in period, in favor of mechanical
operation, operation;
5. The assembly should be slowly pushed forbidden beat, so as not
to damage bearings and cause deformation;
6. Design, should be used in different parts of the appropriate
material, in order to improve the mechanical properties, extending
bearing life;
7. In the high load, the reciprocating motion, it is recommended to
use screws;
8. In fresh water, sea water, and at sea, the shaft, or recommend
the use of stainless steel, chrome plated.
