9 Urea Grease Manufacturers in 2024
This section provides an overview for urea greases as well as their applications and principles. Also, please take a look at the list of 9 urea grease manufacturers and their company rankings. Here are the top-ranked urea grease companies as of April, 2024: 1.Vinayak Oil Industries, 2.LIAONING HAIHUA TECHNOLOGY CO., LTD., 3.Liaoning Zonede Chemical group Co. Ltd.
Table of Contents
1987~1991: Engaged in research on wire covering materials at Polymer Materials Laboratory.
1991~1997: Worked as a patent Engineer at Koike International Patent Office.
1997~2005 Worked as an intellectual property member at GE Yokogawa Medical System, currently working as a writer.
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What Is Urea Grease?
Urea grease is a grease that contains two or more urea bonds, which are difficult to decompose, and a thickening agent that ensures scientific stability.
The thickening agent is mixed with the liquid to make it semi-solid. Grease is generally used for machines that rotate at relatively low speeds, bearings that are subject to high loads, and sliding surfaces where metals slide against each other to reduce friction and the burden on equipment.
It is classified into various types depending on the thickening agent and base oil used, and the characteristics of the thickening agent in particular almost determine the characteristics of the grease. The characteristics of urea grease, which reflect the properties of urea, are higher heat resistance and water resistance than other greases.
In addition, urea grease has a unique consistency. Therefore, it can protect machinery for a longer period compared to other greases using thickening agents, which have the same hardness.
Uses of Urea Greases
Urea grease has excellent heat and water resistance. For this reason, it is often used in bearings and sliding parts of equipment that are driven under high temperature conditions.
For example, in metal rolling mills, machines must be operated under high loads and high temperatures while spraying cooling water. Under these special conditions, urea grease is suitable because of its excellent heat and water resistance.
Urea grease is also used in general household products. For example, it is used inside reels attached to fishing rods. By using urea grease with high water resistance, it is possible to protect the internal parts from seawater. The unique consistency of urea grease protects the precision gears inside the reel.
Principle of Urea Greases
Urea, which is used as a thickening agent in urea grease, is scientifically stable and has two or more urea bonds that are not easily decomposed. Ureas are further classified according to the number of urea groups: 2 is diurea, 3 is triurea, and 4 is tetraurea. Of these, diurea has superior performance as a grease. For this reason, diurea is widely used in urea-based greases.
Characteristics of Urea Grease
1. Chemical Characteristics of Urea Grease
Diureas are further subdivided according to the structure of the two ends of the thickener molecule. The classifications are aromatic diurea, aliphatic diurea, and alicyclic diurea. Among these, aromatic diurea has the highest grease performance, with excellent water resistance and shear stability. Other aliphatic diurea greases are fluid and soften in shear when shear force is applied.
When the flow stops and the shear elasticity is lost, the grease returns to its original hardness. It is suitable for use in centralized lubrication (a method in which grease is supplied to multiple locations by a single grease pump). Another advantage is that softening during shear reduces torque and noise when used in bearings.
In addition to the characteristics of the structure at the molecular level, the performance of the base oil (base oil) also has an effect on the grease. There are many types of metal soap-based greases, such as calcium soap, lithium soap, molybdenum disulfide, and lithium complex. On the other hand, non-soap-based greases exist, such as urea, of which urea grease is a typical example.
2. Physical Characteristics of Urea Grease
In general, the hardness of grease varies depending on the amount and type of thickener blended, and is indicated by "viscosity". The "mixing consistency" value is generally used as the "degree of hardness". Grease hardness is classified as No. 000, No. 00, No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, and No. 6.
Grease with a degree of admixture modulus in the range of 445 to 475 is soft grease in a semi-fluid state and falls under No. 000. Grease with a miscible consistency ranging from 85 to 115 is labeled No. 6 and is very hard grease. Many urea grease products have a degree of mixing consistency of about No. 2 and are classified as normal hardness grease. Although the hardness is normal, the use of urea-based thickening agent makes this grease not only rustproof, lubricating, and wear-resistant but also highly heat- and water-resistant and long-lasting.
Other Information About Urea Grease
1. Types of Grease Thickeners
Tightener makes the base oil, which constitutes the grease semi-solid. By mixing the base oil with the thickener, the thickener is incorporated into the base oil and becomes semi-solid.
There are two major types of thickeners: metallic soap type and non-soap type. There are many types of metallic soap-based greases, such as calcium soap, lithium soap, aluminum complex, and lithium complex. On the other hand, non-soap-based greases include bentonite, PTFE, and urea, with urea grease being a typical product.
2. Disadvantages of Urea Grease and Measures to Deal With Them
Urea grease has many advantages over lithium-based grease, but it also has disadvantages. Some types of urea grease harden when used in high-temperature environments. This phenomenon occurs because the thickener molecules polymerize under high temperature.
Therefore, regular use near the heat resistant temperature may cause performance degradation due to hardening, so care should be taken. Before using this grease, please check the grease brand name thoroughly in the manufacturer's catalog before applying it to the machine. There are also urea greases that soften and harden to a greater degree when sheared.
There is no problem if the selection or machine design is intentionally made to take advantage of these characteristics, but since unintended changes may cause malfunctions in the machine used, sufficient confirmation is required prior to use.
List of 9 Urea Grease Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- China
- India
- Japan
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PETROKING PETROLEUM HEBEI CO., LTD
Polyurea Grease
Manufacturer Overview
PETROKING PETROLEUM HEBEI CO., LTD is a manufacturer and provider of Oil & Energy, Cement Plants, Transportation, and Civil Infrastructure. The company was established in 1988 and is based in China. The company offers manufacturing Multipurpose Lithium Base Grease, High Temperature Grease,Extreme Pressure Grease, Lithium Complex Grease, Aluminium Complex Grease, Graphite Grease, Anhydrous Calcium Grease, Engine Oil, Gear Oil, Hydraulic Oil. The company serves a diverse clientele, spanning industries such as automotive, aviation, manufacturing, and more.
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FUCHS SE
Polyurea Greases
Manufacturer Overview
FUCHS SE, established in 1931 and based in Mannheim, Germany, is a manufacturer and supplier of lubricants and related specialties. The company's product range includes lubricants for construction machines, diesel locomotives, friction bearings, coal-fired power plants, and trucks. These products aid machinery in various applications. Industries primarily served by the company include automotive, mining, aerospace, power generation, and mechanical engineering. The company also offers services such as sustainability initiatives, customer consultations, and global strength combined with local customer proximity.
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Schaeffer Manufacturing Co.
Polyurea Grease
Manufacturer Overview
Schaeffer Manufacturing Co., founded in 1893 and based in St. Louis, Missouri, is a manufacturer of lubricants, fuel additives, and chemicals. Its product portfolio includes diesel fuel additives, hydraulic fluids, and synthetic motor oils. It also sells metalworking fluids, food-grade lubricants, and specialized industrial oils. The company’s engine oils are formulated with proprietary friction modifiers Penetro and Micron Moly that help reduce wear and friction on bearings, pistons, and valve trains. The company sells its products all over the U.S. and in over 45 other countries and serves several markets such as trucking, construction, and agriculture.
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Kyodo Yushi
Urea Grease
Company Overview
Kyodo Yushi Co., Ltd. is a Japanese manufacturer of multiple types of lubricants, mainly grease, metal and machine oil. It is headquartered in Fujisawa, Kanagawa Prefecture, Japan, and was established in 1936. The company specializes in manufacturing lubricants, including greases, cutting fluids, grinding oils, rolling oils, and plastic working oils as well as forging oils. Its popular products include Chassis Grease K, One Luber MK-S and Multemp CE-T Kyodo are used by industrial manufacturers, automotive manufacturers, and construction companies. Yushi also offers many services, such as technical support and training. The company's customers include industrial manufacturers, automotive manufacturers, and construction companies.
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Phillips 66
Polyurea Grease
Company Overview
Phillips 66 Lubricant headquartered in Houston, Texas is a manufacturer and supplier of finished lubricants founded in 2012. The company’s production line is segmented into automatic lubricators, engine & gear oils, coolants, greases, and transmission, hydraulic & metalworking fluids used in trucking, transportation (aviation, railroad, & automotive), energy & power generation, agriculture, and construction & earth moving industries. It also offers a comprehensive global distribution network as well as proprietary research and development facilities for its customers.
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Urea Grease Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Vinayak Oil Industries |
29.6%
|
| 2 | LIAONING HAIHUA TECHNOLOGY CO., LTD. |
18.5%
|
| 3 | Liaoning Zonede Chemical group Co. Ltd |
11.1%
|
| 4 | Kyodo Yushi |
11.1%
|
| 5 | Shandong Shengte Commercial Limited |
7.4%
|
| 6 | Phillips 66 |
7.4%
|
| 7 | FUCHS SE |
7.4%
|
| 8 | Schaeffer Manufacturing Co. |
3.7%
|
| 9 | PETROKING PETROLEUM HEBEI CO., LTD |
3.7%
|
Derivation Method
The ranking is calculated based on the click share within the urea grease page as of April 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
- Kyodo Yushi: 391
Newly Established Company
- Shandong Shengte Commercial Limited: 2007 (17 years ago)
- LIAONING HAIHUA TECHNOLOGY CO., LTD.: 1992 (32 years ago)
- PETROKING PETROLEUM HEBEI CO., LTD: 1988 (36 years ago)
Company with a History
- PETROKING PETROLEUM HEBEI CO., LTD: 1988 (36 years ago)
- LIAONING HAIHUA TECHNOLOGY CO., LTD.: 1992 (32 years ago)
- Shandong Shengte Commercial Limited: 2007 (17 years ago)
Global Distribution of Urea Grease Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
China
|
4 | 66.7% |
Japan
|
1 | 16.7% |
India
|
1 | 16.7% |
