Oilless Bush by viiplus.com- Select, configure, order. Viiplus delivers punctually and offers china factory oilless bushings prices. Flange Bushing products are available.
Bushes，Bronze Bushes，Graphite Bronze Bushes
Our range of products includes graphite bronze bushes，graphite bushings impregnated.
Aluminum Bronze Bushing，Manganese Bronze Bushing, Tin Bronze Bushing – Oilless Bushing Material of Choice.
Oilless Bush, Graphite Filled Bronze Bush – Graphite Impregnated Bronze.
VIIPLUS supply oilless bush used in die sets, metal stamping dies, molds, special machines, and heavy equipment of all types.
Oilless bush is made of solid bronze and can be ordered either with or without self-lubricating graphite. They are available in a broad range of inch and metric sizes, including all NAAMS bushing sizes.
And, if a standard bushing won’t suffice, we can economically make custom bushings in just about any size.
Shoulder Oilless Bush
Straight Oilless Bush
Flanged Oilless Bush
Metric Custom Oilless Bush
Bronze bearings with embedded solid lubricant. Can be used without oil. Can be used at high temperatures.
Oilless Bush, #500SP Bronze Bushing (SPB) from VIIPLUS China, offers free CAD downloads, prompt lead times, competitive pricing, and no minimum order quantity.
Special high strength brass inlaid special solid lubricant graphite，The maximum temperature for the use of special solid lubricants is below 250℃
Standard / Heat Resistant / Foreign object Resistance
Maximum Allowable PV Value Range(N/mm2•m/s)
Maximum Allowable PV Value(N/mm2•m/s)
Maximum Allowable Surface Pressure P(N/mm2)
Maximum Allowable Velocity V(m/s)
Bronze, Plugged Graphite Oilless Bush and Self Lubricating
Oilless Bush Design
Flanged bearings #500SP Flange Bushing (SPF)
Oilless Bush Specification/Dimensions
Inner Dia. d(Ø)
Outer Dia. D(Ø)
Flange Outside Diameter(mm)
type: solid lubricants bushings
CAD, The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Bronze Bushings – Thrust Type Flange Integrated Oil Free Bushings Inquiry Now
Application of Oilless Bush in excavators
The excavator is divided into the vehicle part, the disembarkation part, and the working device part. The disembarkation part is mainly the walking mechanism, and the disembarkation part is mainly the control. The working device, as the name implies, is the part used to work. The excavator is the big arm, the small arm, the shovel bucket, and some of them have earth loosening apparatus. The most important is the hydraulic system, the main pump, the main cutting, the pilot system, and so on. Self-lubricating bearings are mainly used in chassis moving mechanisms, body parts, hydraulic components, and other components.
The structural members of the excavator working device and the oil red are connected by a pin shaft at each joint hinge point and supporting seat. During the work, they bear a large load and wear between each moving part. Meanwhile, during the work, the bearing capacity of the excavator working device is characterized by high load and low speed.
In addition, when the excavator excavates and moves the earth, the working device, under the action of each oil cylinder, has frequent rotation and high frequency of repeated action, that is, the relative movement of the grinding parts is frequent, in order to ensure that each part rotates flexibly and works reliably when working, so it is suitable to use solid self-lubricating bearing on the working device of the excavator.
In excavator with self-lubricating bearing (graphite and copper set Oilless Bush) of substrate material choice, according to the main failure form of bearing, and combining the characteristics of the engineering machinery use conditions changing, considering factors such as material strength, corrosion resistance, and adaptability, choose the solid self-lubricating bearing substrate material is brass, high carrying capacity of a higher force its allowable static bearing capacity is 250 n/mmi, allowable bearing capacity for low quick l00N/mm ‘, and good abrasion resistance.
The application of self-lubricating bearing (graphite copper sleeve Oilless Bush) in excavator effectively simplifies the mechanical design, and its simple structure, good technology, reduce the maintenance cost of the machine, reliable quality plate, help to improve the working reliability of the whole machine. At the same time, the solid self-lubricating bearing has superior performance in use and strong product competitiveness, so it will be more fully applied in the use of construction machinery in the future.
Viiplus is a professional graphite copper sleeve, self-lubricating oilless bush manufacturer, the company produces the self-lubricating bearings, oil-free bushings, copper busbar copper, graphite, is widely used in the automobile industry, construction machinery, hydraulic machinery, wind power, high-speed train, plastic machinery, automatic production line, plastic packaging machinery and so on need to drive to refuel or difficult to form the part of the oil film, if you have any needs, can feel free to contact us.
There are a number of situations where self–lubricating and pre-lubricated bearings of some kind should be considered by a designer.
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