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This section provides an overview for wing pumps as well as their applications and principles. Also, please take a look at the list of 4 wing pump manufacturers and their company rankings. Here are the top-ranked wing pump companies as of December, 2024: 1.QingDao CXD Marine Valve Co., Ltd., 2.SurfDek, 3.BHARGAB ENGINEERING WORKS.
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Categories Related to Wing Pumps
Wing pumps are a type of plain bearing that does not use oil, grease, or other lubricating materials.
Plain bearing lubricant, such as oil or grease, is applied between the bearing and the shaft to reduce friction and maintain sliding properties. Wing pumps, however, do not require the application of oil, grease, or other lubricants, or can reduce the amount and frequency of lubrication.
Figure 1. Example of oilless bearing use
Wing pumps are used in sliding and rotating parts in the following cases.
Wing pumps are used in sliding and rotating parts in a wide range of fields, including industrial machinery, automobiles, railcars, industrial robots, copiers, and printers. When they are used in high-temperature valves and steelmaking equipment, for example, they are an example of utilizing their superior heat-resistant characteristics.
Other examples of applications that take advantage of the absence of oil or other lubricants include food manufacturing equipment, medical and nursing care equipment, and underwater equipment such as sluice gates and water wheels. Figure 1 shows a table position adjustment mechanism in three axes, horizontal (right and left) and vertical, in which wing pumps are used to support the vertical axis.
In a plain bearing, the bearing and shaft are in contact with each other, so friction occurs and wear develops as the shaft rotates. Oilless bearings do not use oil or other lubricants on the sliding surfaces, but rather provide self-lubricating properties and form a lubricating film to reduce friction.
The following methods are used to make wing pumps self-lubricating.
Figure 2. Types by material
There are three major types of oilless bearings by material: metallic, resinous, and composite.
Metallic Type
Metallic wing pumps include "solid lubricant embedded type," in which a solid lubricant with excellent self-lubricating properties is embedded in the sliding surface of a copper alloy or other material, "solid lubricant dispersion type," in which the lubricant is dispersed within the metal structure, and "oil-impregnated growth cast iron type," in which the oil is impregnated in cast iron or other material.
Resin Type
Resin-based wing pumps are made of thermoplastic resins such as polyamide resin (PA), polyacetal resin (POM), polyurethane resin (PUR), and aromatic polyamide resin, and thermosetting resins such as phenol resin (PF) and tetrafluoroethylene resin.
Double-Layer Bearing
Multilayer wing pumps are molded from a combination of self-lubricating materials and materials with superior strength and thermal conductivity.
Figure 3. Types by material (Metallic)
When used as bearings, there are cylindrical "bushings" and cylindrical "flange bushings" with a flange, and when subjected to thrust loads, there are cylindrical "flange bushings" with a flange and disk-shaped "thrust washers. Spherical plain bearings" of the spherical plain bearing type are also available.
Figure 4. Types by material (Resin-based, Multi-layered)
Wing pumps do not require an oil supply system. Oil consumption is almost zero, and some bearings can be used without lubrication.
Equipment and operating costs are reduced, and periodic maintenance is not required. However, wear may develop and the bearings will need to be replaced.
*Including some distributors, etc.
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Tools & Pumps Trading Centre, established in 2006 and headquartered in Spijkenisse, Zuid-Holland, Netherlands, operates as a distributor within the shipping solutions. The company specializes in supplying machinery, equipment, and supplies, offering an array of hydraulic tools including cylinders, pumps, jacks, torque tools, and Toughlift jacking systems. Complementing these are diverse pump solutions, such as diaphragm pumps, submersible pumps, and hand-operated vacuum pumps. The company is a member of the Dutch Ship Suppliers Association and is certified by AEO.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | QingDao CXD Marine Valve Co., Ltd. |
33.3%
|
| 2 | SurfDek |
33.3%
|
| 3 | BHARGAB ENGINEERING WORKS |
16.7%
|
| 4 | Tools & Pumps Trading Centre |
16.7%
|
Derivation Method
The ranking is calculated based on the click share within the wing pump page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
India
|
1 | 33.3% |
United Kingdom
|
1 | 33.3% |
|
Netherlands
|
1 | 33.3% |
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