isolating valves plain bearings

Quality Valve Bushings Supplier
Designs, manufactures self-lubricating bushing materials and solutions which are key ingredients in the wellbeing of each of us and the future of all. They can be found everywhere in our living places and our daily life: in buildings, transportation, infrastructure and in so many industrial applications. Understood that valve bushings qualities are exactly what any customer demands from a qualified supplier. Dry Good (PTFE/MoS2)

Valve Sliding Bearing Technology

Gather oilless bearings solutions to save energy, provide protection, improve comfort and sustain the environment for a variety of markets. Valve Bushing & Bearing forms made to order: Nonstandard parts Bearing forms available in standard dimensions:

Plain cylindrical bushes
Plain flanged bush

Sliding Bearing World Development, isolating valves bushing

Viiplus is a manufacturer of self-lubricating bearing bushing solutions for mechanical pipe connection systems!Engineered sleeve bearings offer low friction, longer wear and noiseless operation. Discover our range.

Online shopping for du plain bearing for valve- Self-lubricating Bearings from a great selection at www.bronzelube.com

THE FUTURE IS VALVE BUSHINGS

Designed to be self-lubricating, wear-resistant, and maintenance-free, buy sleeve bearings directly from www.bronzelube.com today!

Metal Sleeve Bushing – Extended Service Life we offers a wide range of high performance sleevebearing materials, services and solutions. Bronzelube bushings offer high performance, maintenance-free solution for many applications. Free of lubricants. Higher load capacity. Resistant to corrosion. Maintanance-free. China Sleeve Bushing Supplier.

Stainless steel backing du bushing for valves

The du plain bearing is a composite structure consisting of a carbon steel backing, an intermediate layer of sintered bronze and a PTFE based sliding lining. Available in inch and metric sizes.

Bushings with no moving parts and options such as self lubrication (thus requiring no lubrication) are often the right choice for water treatment applications.

Applications

Bronzelube self-lubricating bearing products are designed for a wide range of industrial applications and services.

Unlike Other Self-lubricating Bushing Companies, We Supply Different Materials of Valve Bushing Products, Watergates, valves bushes. Give Us A Call Now! We’re Committed To Continuous Improvement Of Quality, Delivery, & Service To Our Customer. Quick Deliveries. Green Manufacturing. Engineering Expertise. China Factory Price.

Butterfly Valve Seat Universal Bushing

Specialized Sleeve Bearings Solutions for Valve Applications

Application of sleeve bearings (self-lubricating) in the valves

Valve oil-free bearing basics

Oil-free bearing (SF-1) is a kind of novel lubrication bearing that has the characteristics of both metal bearing and oil-free lubrication bearing, the load is borne by the metal matrix, and the specially formulated solid lubricating material plays the role of lubrication.

It is widely used in a metallurgical continuous casting machines, rolling rigid equipment, mining machinery, ships, steam turbine, hydraulic turbine, injection molding machine,s and equipment production lines.

Advantages

The advantages of oil-free bearings are well known, all machinery must use some kind of bearing for smooth operation.

Oil-free bearing is a kind of novel lubrication bearing that has both the characteristics of metal bearing and oil-free lubrication bearing, the load is borne by the metal matrix, and the specially formulated solid lubricating material plays the role of lubrication.

It has a high bearing capacity, impact resistance, high-temperature resistance, self-lubricating ability, and other characteristics, especially for heavy load, low speed, reciprocating or oscillating, and other difficult to lubricate and form the oil film occasions, but also not afraid of water and other acid corrosion and erosion. The majority of users generally reflect that inlay bearings not only save oil, and energy, and their working life is also longer than ordinary sliding bearings.

The product is made of steel plate as the substrate, the middle layer of sintered spherical bronze powder, and the surface layer of rolled PTFE and lead mixture. It has a small coefficient of friction, wear and corrosion resistance. Oil-free self-lubrication and long service life, the use of which can reduce costs, reduce noise, and prevent sticky, and slippery.

Classification

Metal-based solid inlay oil-free bearings

In the metal substrate, inlaid graphite and MoS2 composite solid lubricant, a high-performance solid lubrication products. It breaks through the limitation of general bearing relying on oil film lubrication. In the process of use, the solid lubricant rubs with the shaft through frictional heat, forming excellent conditions for oil and powder coexistence lubrication, which not only preserves the protection of the shaft from wear, but also makes the solid lubrication characteristics eternal.

Its hardness is twice as high as general copper sleeve, and its wear resistance is also twice as high. At present, it has been widely used in metallurgy even casting machine, train bracket, steel rolling equipment, mining machinery, ships, gas turbines and other high temperature, high load, low speed heavy load and other occasions.

Multi-layer composite oil-free bearing

With steel plate as the substrate, the middle sintered spherical bronze powder, the surface rolled polytetrafluoroethylene (PTFE) and lead mixture, is rolled into a sliding bearing. It has the characteristics of small friction coefficient, good wear resistance, corrosion resistance and oil-free lubrication.

The use of this product can reduce the cost, reduce the size of machinery, to avoid the phenomenon of gnawing shaft and reduce mechanical noise and other advantages. The products have been widely used in the sliding parts of various machines, such as printing machines, elevators, textile machines, tobacco machines, fitness machines, hydraulic trucks, micro motors, solenoid valves, automobiles, motorcycles and household machinery.

Others

Linear bearings, non-standard parts,  soft tape, FB bronze bearings, JF bimetal bearings, SF-1 oil-free lubricated bearings, SF-2 boundary lubricated bearings, FZ steel ball cage series, powder metallurgy oil-containing bearings, graphite inlaid self-lubricating bushings, TF graphite loose inlaid alloy bearings, alloy inlaid high wear-resistant bearing shingles.

Production process

Oil-free bearing is a kind of novel lubrication bearing which has both the characteristics of metal bearing and oil-free lubrication bearing, the metal matrix bears the load and the special formula of solid lubricating material plays the role of lubrication.

Due to the requirements of the production process, certain key equipment of industrial and mining enterprises operate under extremely harsh working conditions. Due to the heavy equipment, high ambient temperature, dust or air containing acidic corrosive gases CO, SO2, etc., the lubrication of the equipment brings many problems, friction and wear serious.

Up to now, most of the above domestic enterprises are still using the traditional oil, grease lubrication, and the fact that these mining conditions have gone beyond the scope of oil, grease lubrication, extremely easy to occur in the bearing and other frictional vice of the bite or bite, causing serious parts wear and damage, often recognized to equipment downtime.

In order to produce continuous operation, in addition to the original design requires the installation of multiple equipment rotation repair, but also must be invested in a large number of maintenance personnel. Seriously limit the increase in productivity, spare parts and energy consumption is great, has become an important obstacle to the development of production.

Automobile manufacturing, cement production, petrochemical and other enterprises are proposed to provide complex working conditions under the special lubrication material requirements. To this end, the inlay self-lubricating composite materials research, in the material formulation and preparation process to highlight their own characteristics, material performance has reached the international advanced level, for the enterprise to solve the problem of lubrication under special working conditions, and brought obvious economic and social benefits. However, due to a variety of reasons more domestic enterprises have not been adopted, the above situation still exists.

Key technology principle

Inlaid self-lubricating composite material is a new type of anti-polar pressure solid lubricating material, consisting of a metal substrate and a solid lubricant paste embedded in the hole or slot of the substrate. During the friction process, the metal substrate bears most of the load.

After friction, the solid lubricant in the hole or slot is transferred or counter-transferred to the friction surface, forming a well-lubricated, firmly attached and uniformly covered solid transfer film on the friction surface, which greatly reduces frictional wear. As the friction proceeds, the embedded solid lubricant is continuously provided to the friction surface, ensuring good lubrication in long-term operation.

Application areas

The basic material requirements for bearings are largely dependent on the working performance of the bearing. The suitability of the material selected for the manufacture of rolling bearings will have a great influence on their performance and life.

In general, the main damage of rolling bearings is in the form of fatigue spalling under the action of alternating stress, as well as the loss of bearing accuracy due to frictional wear. In addition, there are cracks, indentations, rust and other reasons for the abnormal destruction of the bearing.

Therefore, rolling bearings should have high resistance to plastic deformation, less frictional wear, good rotational accuracy, good dimensional accuracy and stability, and long contact fatigue life. And many of these properties are determined by the material and heat treatment process together.

Metal-based inlaid solid self-lubricating bearings

It is a kind of novel lubricating bearing which has the characteristics of both metal bearing and self-lubricating bearing, with the metal matrix bearing the load and the specially formulated solid lubricating material playing the role of lubrication. It has high bearing capacity, impact resistance, high-temperature resistance, self-lubricating ability and other characteristics.

Due to the advantages of low noise and self-lubrication, the traditional oil bearing has become the new favorite of computer CPU fan bearing with high market demand; in addition, with the increasing demand for noisy, the application of oil bearing in daily household appliances is also expanding.

Oil-free self-lubricating bearings

The product is made of steel plate as the substrate, the middle layer of sintered spherical bronze powder, and the surface layer of rolled PTFE and lead mixture. It has a small coefficient of friction, wear and corrosion resistance. Oil-free self-lubrication and long service life, the use of which can reduce costs, reduce noise, and prevent sticky, and slippery. It is widely used in the sliding parts of various machinery such as printing machines, textile machines, hydraulic trucks, tobacco machines, pharmaceutical machinery, fitness equipment, micro motors, automobiles, motorcycles, etc.

SF-2 plus boundary lubrication bearing

Acid poly methyl with aldehyde, with high wear resistance, bearing surface with a regular arrangement with oil storage pit assembly must be coated with lubricating grease, especially suitable for high load and low speed under the rotary motion, swing motion and often under the load, opening and closing and not easy to form fluid lubrication parts, in the boundary lubrication conditions, can be used for a long time without refueling maintenance, and the process of refueling can make the bearing life can be more At present, it is suitable for metallurgical machinery, mining machinery, water conservancy machinery, automobile parts, construction machinery, agricultural machinery, etc.

Cautions

First, should determine whether the shaft core and shaft shell of the mating surface has bruises, protrusions, etc.

Second, whether there is dust or mold sand attached to the surface of the bearing shell.

If there is a slight bump or protrusion, remove it with an oil-polishing stone or fine sandpaper.

In order to avoid bruises when mounting, the surface of the shaft and housing should be lubricated with a small amount of oil. To install the bearing in the shaft center, force should be applied in the inner ring, and to install the bearing in the bearing housing, force should be applied in the outer ring. When applying force to the bearing, it is important to make the force vertical and even, and the bearing will be injured if it is deflected. For this reason, absolutely try to avoid bias hits.

V. The hardness of the bearing will be reduced by overheating, therefore, it must not exceed 100 degrees. In this case, the bearing must be suspended by steel wire, or placed on top of the metal wire frame or support plate, never on the bottom of the groove. When the bearing reaches the desired temperature (below 100 degrees), it should be taken out of the groove immediately and put into the shaft quickly. The bearing will shrink as the temperature drops, and sometimes a gap will arise between the shaft shoulder and the bearing end face.

Sixth, the oil-free bearing retainer and sealing plate should not be used to apply force. The installation method of using a hammer and sleeve is a common method because it will damage the bearing, so do not hit it directly. Always hammer in the bearing with the sleeve in between as shown. The hammer should be tapped lightly. If the machine is constructed in such a way that the inner and outer rings are tightly fitted, use a pad so that the force can be applied to both the inner and outer rings and pressed in.

If only the inner ring is pressed in, the force will go through the ball and press into the outer ring, thus causing a scar on the track surface. When mounting a bearing with a large margin on a shaft, the bearing is heated to 80-90 degrees in clean oil to expand the inner diameter, and this method is widely used.