JIAXING VIIPLUS INTERNATIONAL TRADING CO.,LTD |
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Self-lubricated oilless bearings with graphite insert washer are a unique and innovative solution for various industrial applications. These bearings are designed to operate without the need for external lubrication, relying instead on the self-lubricating properties of the graphite insert.
The graphite insert washer provides excellent lubrication and wear resistance, enabling the bearing to operate smoothly and efficiently even under high loads and speeds. The graphite material has inherent lubricating properties that help reduce friction and heat generation, thus enhancing the bearing's lifespan and performance.
Furthermore, the oilless design eliminates the need for regular lubrication and maintenance, reducing operational costs and downtime. This makes these bearings particularly suitable for applications where lubrication is difficult or impractical, such as in dusty or wet environments.
Overall, self-lubricated oilless bearings with graphite insert washer offer a reliable and cost-effective solution for industrial applications that require smooth and efficient operation without the need for external lubrication.
Metallic, self-lubricating bushings are made up of one of four basic compositions: Strong Cast Bronze, Bronze Bushings
Since bearings usually receive a lot of frictional resistance that generates heat, lubricants such as oil or grease are used to prevent the seizing or abnormal wear that this frictional heat could otherwise cause. Lubrication-free bushings don't need lubricating oil because the bearing body has a lubricating structure made possible by lubricating oil in the bearing body, or by embedded solid lubricant or the like. Since they don't need lubricating oil, lubrication-free bushings are often used for applications such as precision machinery that makes lubricating oil refilling difficult, and equipment with poor affinity to oil. They also greatly reduce maintenance costs by eliminating the need for regular lubrication and enabling stable operation over long periods. Lubrication-free bushings come in a variety of shapes that can be used for different applications as needed. Examples include straight bushings, collar bushings, flange bushings, and housing bushings.
SOBW Bronze Thrust Washer / Oilless bush, copper alloy washer type
Graphite Impregnated Bronze Slide Plate at Best Price
Choose from our selection of bronze thrust washers, including embedded graphite thrust bearings, bronze thrust bearings, and more. Customized Size and brass thrust washer material.
Self-lubricating bearings and sliders embedded with solid lubricants, under the action of friction heat, expand the solid lubricant, automatically transfer to the friction surface, form a layer of lubricating film to prevent metal-to-metal contact, thereby reducing friction factor and wear, and improve The bearing capacity of the bearing. Metal skeleton, according to the needs of gear pump bearing users, bronze, cast iron, cast steel, stainless steel, non-metallic skeleton can be used bakelite, phenolic plastic, nylon and so on.
Second, the characteristics of inlaid bearings and sliders: Self-lubricating bearings and sliders with solid lubricants are made of 10 kinds of lubricating materials with excellent lubricating properties and special lengths, some of which can accept under heavy load. The bearing pressure is on the 2 um thick JDB solid inlaid bearing film, the friction speed of 40m per second can withstand the contact stress of 2800Mpa; some components, low shear force between molecules, low adhesion is easy to form Molecular slip surface, only in the lubrication layer of 2.5um thickness, there are about 40,000 JDB bronze inlaid bearing slip surface, which plays a key role in the lubrication performance of solid lubricant; some components are at 399 °C high temperature, The friction factor is normal; some components have good lubrication properties in normal temperature, normal load, high friction speed, vacuum, and atmosphere. In short, self-lubricating solid lubricants with inlaid bearings and sliders can be adapted to the friction conditions of various working conditions. The friction factor is mostly between 0.006 and 0.09.
Third, the use of inlaid bearings, sliders: Inlaid bearings and
sliders are embedded in the skeleton by solid lubricants,
self-lubricating friction operation, ideally solve the pollution
problems caused by liquid lubricants in the lubrication process, so
Widely used in food machinery, pharmaceutical machinery and other
non-polluting environments. The solid lubricant used in the inlaid
bearing and the slider has the characteristics of large load
bearing, so it is very suitable for the heavy-duty, low-speed,
high-temperature, water vapor and other corrosion conditions and
the inconvenient and frequently lubricated working conditions of
the oil film. Used in mining, metallurgy, petroleum, geology,
chemical, paper, bridges, hydraulic hubs, ships, aerospace and
other industrial sectors. The most outstanding results, such as
steel ladle cranes and 1150 roughing mills, are 6-8 times longer
than the original bearing pads. Various rolling mills, shearing
machines, cold bed sliders (pipe pullers), pharmaceutical machines,
twisting pots, rubber mill bearings, floating crane bearings,
textile mill dryers, non-ferrous metal rolling mills, steel plates
for heavy-duty vehicles The pin bushing, the twisting mixer of the
chemical plant, the roller bearing of the coal mine conveyor, the
inner sleeve of the drilling machine deep rod pump, the protective
drill sleeve and the guiding bushings, sliders and cam discs on
various equipments are all very obvious. .
Fourth, the use of inlaid bearings, sliders:
(1) Inlaid bearings and sliders have been coated with a special
layer of grease on the friction surface before leaving the factory.
Do not soil the friction table during installation. Do not wipe off
the grease! ! ! If it is rubbed off, please replace it with
molybdenum disulfide lithium grease, but it must be run at low
speed for a period of time before the test run, in order to operate
normally. When using heavy load equipment, you must purchase
special grease repaint from the seller. .
(2) When installing the inlaid bearing, it must ensure a certain
sliding clearance to prevent jamming and damage the bearing and the
machine.
(3) When installing the inlaid bearing, it should ensure that the
shaft diameter with which it is rubbed has a good cylindricity, so
that it has sufficient contact area with the bearing, otherwise it
will seriously affect the service life of the bearing or damage
immediately.
Five, inlaid bearings, sliders factory specifications: This product
is widely used in many industries, so it is difficult to unify
specifications.
viiplus is a professional manufacturer on various kind of bearings
over 15 years China factory.
We are making all kinds of slide bearings including DU PTFE composit bushing, DX POM composite bushing,bimetal bushing,wrapped bronze bushing, cast sliding bushings and wear plate bearing pad, sintered bronze bushing and sintering
parts, ball transfer bearings, etc.
The shapes of bearings can be in sleeve, flanged, spherical, plate,
washer, pad, ring, square etc.
Base materials in carbon steel, harden steel, iron, stainless
steel, bronze, brass, copper, bronze-steel alloy.Lubricant
materials in PTFE, , POM, nylon, plastic, oil, graphite, grease,
MoS2, etc.
Export to Poland, Czech Republic, Slovakia, Hungary, Germany,
Austria, Switzerland,
Liechtenstein,America,Canada,Brazil,Peru,Argentina,Chile,Paraguay,Europe,Poland,
Czech Republic, Slovakia, Hungary, Austria, Switzerland,
Liechtenstein,Britain,Finland,France,Germany,Italy,Spain,Sweden,,Estonia,Ukraine,Turkey,Austrial,Russia,Korea,Malaysia,Singapore,Belize,
El Salvador, Honduras, Nicaragua, Costa Rica, Panama,Bahamas, Cuba,
Jamaica, Haiti, Dominica, Antigua and Barbuda, Saint Kitts and
Nevis, Dominica, Saint Lucia, Saint Vincent and the Grenadines,
Grenada, Barbados, Trinidad and more Bagh, Puerto Rico,
Anguilla,Thailand,Egypt,Kenya,Somali,Congo,Zimbabwe,South
Africa,etc.
Oil Free Washers - Select, configure, order.
Washer, self-lubricating
Plain Thrust Washer, Graphite Plugged Thrust Washer, and Oil / Grease Grooved Thrust Washer.
High hardness impregnated brass solid lubrication bearing is improved upon viiplus.com by further enhance the hardness of high hardness brass, giving rise to higher load-bearing capacity and better wear-resistant property. The products are widely used in continuous casting rolling machines, mining equipment, engineering equipment, injection-molding machines, etc. Because of its high hardness, it's difficult to machining and finish, it's recommended only for really high load applications.
Basic material | CuZn25A16Fe3Mn3 | Dynamic load | 120N/mm² |
Base hardness | HB210~275 | Friction Coef | <0.16 |
Temperature Max | 300℃ | Speed limit | dry 0.4m/s oil 5m/s |
Bronze alloy metallic bearings bronze thrust washer with graphite plugs provides both the good wear resistance and great self-lubricating feature of the bearings.
This designation enables the bearings to be operated without oiling
or greasing maintenance.
It is widely used in the field of high load and intermittent
movement as well as oscillating movement conditions such as
automobile assembling line, Water Turbine, Gate dams, and Plastic
Injection Machinery.
Depending on different working conditions, a variety of types of
different alloys are available.
The material of the bronze thrust washer is made of a strong cast bronze base metal with built-in special solid lubricants. prelubrication under extremely high / low temperature conditions at low speed. This material provides a maintenance-free bearing solution, especially for high loads, intermittent oscillating motion.
This type of bearing can be applied in dry, high temperature, high pressure, corrosive environment, with water or other chemicals when it is not possible to introduce oil.
It is now widely used in automotive product line, water engineering, dam gates, plastic industries, later casting machines, steel rollers in metallurgical industry, mineral machinery ships, turbo generators , in hydraulic turbines and injection molding machines.
Article name | Shaft diameter | Inner diameter d | Outer diameter D | D1 | l | r | M (ISO 10642) | CAD-Download | Inquiry |
---|---|---|---|---|---|---|---|---|---|
SOBW 10 | 10 | 10,2 | 30 | 20 | 3 | 0,5 | 2xM3 | ||
SOBW 12 | 12 | 12,2 | 40 | 28 | 3 | 0,5 | 2xM3 | ||
SOBW 13 | 13 | 13,2 | 40 | 28 | 3 | 0,5 | 2xM3 | ||
SOBW 14 | 14 | 14,2 | 40 | 28 | 3 | 0,5 | 2xM3 | ||
SOBW 15 | 15 | 15,2 | 50 | 35 | 3 | 1 | 2xM3 | ||
SOBW 16 | 16 | 16,2 | 50 | 35 | 3 | 1 | 2xM3 | ||
SOBW 18 | 18 | 18,2 | 50 | 35 | 3 | 1 | 2xM3 | ||
SOBW 20 | 20 | 20,2 | 50 | 35 | 5 | 1 | 2xM5 | ||
SOBW 25 | 25 | 25,2 | 55 | 40 | 5 | 1 | 2xM5 | ||
SOBW 30 | 30 | 30,2 | 60 | 45 | 5 | 1 | 2xM5 | ||
SOBW 35 | 35 | 35,2 | 70 | 50 | 5 | 1 | 2xM5 | ||
SOBW 40 | 40 | 40,2 | 80 | 60 | 7 | 2 | 2xM6 | ||
SOBW 45 | 45 | 45,3 | 90 | 67,5 | 7 | 2 | 2xM6 | ||
SOBW 50 | 50 | 50,3 | 100 | 75 | 8 | 2 | 4xM6 | ||
SOBW 55 | 55 | 55,3 | 110 | 85 | 8 | 2 | 4xM6 | ||
SOBW 60 | 60 | 60,3 | 120 | 90 | 8 | 2 | 4xM8 | ||
SOBW 65 | 65 | 65,3 | 125 | 95 | 8 | 2 | 4xM8 | ||
SOBW 70 | 70 | 70,3 | 130 | 100 | 10 | 2 | 4xM8 | ||
SOBW 75 | 75 | 75,3 | 140 | 110 | 10 | 2 | 4xM8 | ||
SOBW 80 | 80 | 80,3 | 150 | 120 | 10 | 2 | 4xM8 | ||
SOBW 90 | 90 | 90,5 | 170 | 140 | 10 | 2 | 4xM10 | ||
SOBW 100 | 100 | 100,5 | 190 | 160 | 10 | 2 | 4xM10 | ||
SOBW 120 | 120 | 120,5 | 200 | 175 | 10 | 2 | 4xM10 |
We provide your desired Thrust Washers according to the specifications you require.
Bronze alloy CuZn25Al5Mn4Fe3 + Graphite plugs
Oilless bearings are designed for high load, low speed applications and are made from rotationally cast high strength bronze using a specially shaped graphite plug as a lubricant.
Our range of oil-free washers are available in metric and imperial
sizes. Our in-house machining service can produce custom-made
products that meet specific customer requirements.
Bronze thrust washer with solid lubricant plug (graphite)
① Solid lubricant film
② Solid lubricant plug
③ Bronze backing
Oilless Bearing, Graphite Plugged Bearing, Solid Bronze Bearing, Sliding Bearing, Dry Bearing & Pre-lubrication Plain Bearing and Bushing
Various Size, Various Application Available
Bronze Thrust Washer With Graphite Insert provides both the good wear resistance and great self-lubricating feature of the bearings. This designation enables the bearings to be operated without oiling or greasing maintenance.
Density | 8.0 g/cm3 | |
Hardness | >210 HB | |
Tensile strength | >750 N/mm2 | |
Yeild strength | >450 N/mm2 | |
Elongation | >8 | |
Coefficient of linear expansion | 1.9x10-5/°C | |
Operating temperature | -40°C~+300°C | |
Max. Dynamic Load | 120 | |
Max. Speed | Dry | 0.4 m/s |
Oil | 1.0 m/s | |
Max. PV limit | Dry | 1.5 N/mm2.m/s |
Oil | 3.25 N/mm2.m/s | |
Friction | Dry | 0.12~0.16 μ |
Oil | 0.03~0.08 μ |
The Oilless Bronze Thrust Washer is widely used in below:
1. Heavy duty tractor and farm equipment
2. Mining equipment
3. Forestry equipment
4. Mixing tank blade shaft support
5. Foundry, furnace and steel production equipment
6. HVAC applications
7. Heavy duty casters and wheel support bearings
8. Oven kart veneer drying applications, and possibly other
applications