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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.
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