1. Rotary Shaft Seals
Rotary seals, also known as lip seals, are a vital component in machinery used across numerous industries. These seals are responsible for ensuring that fluids do not leak out of machines, while also protecting the internal components from dust, dirt and other contaminants.
2. Types of Rotary Shaft Seals
There are different types of rotary shaft seals, each with its own specific design and materials.Some common types include:
Radial Lip Seals:Radial lip seals, also known as lip seals or shaft seals, are the most common type of rotary seal. They are typically used in applications where the sealing surface is rotating relative to the housing. Radial lip seals can be designed for low to high-speed applications and are available in a variety of materials to suit different fluid and temperature requirements.
V-ring Seals: V-ring seals are another type of rotary seal that are used for shafts that rotate in both directions. They are typically made of elastomer or rubber and can handle high-speed applications. V-ring seals are effective at preventing contamination from entering the shaft area.
Mechanical Seals: Mechanical seals are designed to seal against the rotating shaft using two flat surfaces. They are typically used in high-pressure applications where a high degree of sealing is required. Mechanical seals can be made from a variety of materials including ceramic, carbon and metal.
Labyrinth Seals: Labyrinth seals are a non-contact type of rotary seal that use a series of grooves to create a tortuous path for the fluid or gas to flow through. They are typically used in high-speed applications where there is a risk of fluid leakage.Labyrinth seals are effective at preventing contamination from entering the shaft area.
Gland Seals: They are typically used to seal a rotating shaft where the shaft passes through a stationary housing or casing,such as in a pump or a mixer. The packing material used in gland seals can be made of various materials such as graphite, PTFE, aramid fibre and carbon.
3. Applications of Rotary Seals
Pumps: Rotary seals are used in pumps to prevent leakage of fluids such as water, oil and chemicals.
Compressors: Rotary seals are used to prevent leakage of gases such as air, natural gas and refrigerants.
Gearboxes: Used in gearboxes to prevent leakage of lubricants such as oil or grease.
Motors: Prevent leakage of coolant or lubricant fluids.
Marine Applications: Used in marine applications such as propeller shafts, rudder shafts and thrusters to prevent leakage of sea water.
Automotive Applications: Used in automotive applications such as wheel bearings, differential gears and engine crankshafts to prevent leakage of oil and other fluids.
Food and Beverage Industry: Rotary seals are used to prevent contamination and ensure hygiene standards.
Pharmaceutical Industry: Used to prevent contamination and ensure product integrity.
| Material |
NBR /FPM /HNBR /ACM /AEM /PTFE /Silicone and more |
| Type |
SC /TC /TB /SB /VC /TA /TB /VB /VA /KC /DC and more |
| Size Range |
inner diameter from 5mm to 3.4m |
| Color |
black, brown, blue, green and more |
| Feature |
oil resistant, water resistant, wear resistant |
| Temperature |
-40°C - 220°C |
| Pressure |
up to 0.05 MPa |
| Spring |
carbon steel or stainless steel |
| Hardness |
30-90 shore A |
| Packing |
PE bag or paper roll inside, carton outside |
4. Company Profile
Taizhou Enpower Seal Co., Ltd. is located in Xianju, Taizhou city, China, founded in 1988, the annual sales of 100 million RMB, plant covers an area of about 46690 square meters, 330 employees. Main products: transmission and electric drive oil seal, engine oil seal, shock absorber oil seal, pump oil seal, household appliance seal, high pressure water seal, industrial oil seal. Our trade mark is COG.
The company has always been committed to the original research and development of frontier sealing technology, new material sealing system and import substitution application and promotion, with the company's technology research and development personnel as the team, a collection of scientific research colleges, domestic research institutions, technical backbone in the industry. Continuous analysis of domestic and foreign well-known enterprises products, fully absorb the oil seal design concept of European and American enterprises, combined with their own characteristics, the construction of the core oil seal design technology. By importing IATF16949 quality management system, establish high technical quality standards. In terms of oil seal manufacturing, it integrates the production philosophy of well-known Japanese companies, and continuously improves the production of products to ensure high precision, high reliability and high cost performance.
In April 2020, COG introduced entrepreneurial talents and established a technology research and development company by holding: Zhejiang Hoolen Sealing Solutions Co., Ltd. By integrating technical resources in the industry, implementing the innovation-driven development strategy, the company has become a provider of power equipment, energy-saving and new energy electric drive, shock-absorbing sealing, new materials and other sealing system solutions.
5. FAQ:
Q:Are you trading company or factory ?
A:We are a factory ,so we can offer you Factory Price with High Quality.
Q:Where is your factory located ?
A:Our factorty is located in Xianju, Taizhou which is close to Shanghai and Ningbo Port.
Q:How long is your delivery?
A:For stock items ,we can ship them immediately after receiving payment .
For other items,we will need 14-25 days for mass production depends on the quantity and types of the order.
Q:Do you provide free samples ?
A:Usually we do not provide free samples .There is a sample cost which can be refund after you place order .
Q:What do you usually shipped through?
A:Air freight, Sea freight,express is the widely used shipment due to small weight and size for Mechanical seal
Q:What's your payment terms ?
A:We accept T/T, Paypal, Western Union when qualified goods are ready for ship.
For amount less than 1000USD ,100% in advance.
For amount more than 1000USD,30% in advance ,balance payment before shipment
Q:I can not find our products in your catalog ,can you make customized products for us ?
A:Yes ,Customized products is available .OEM is welcomed.
Q:I don't have drawing or picture available for custom products, could you design it?
A: Yes,we can make the best suitable design in accordance with your application.
Audited Supplier 
){kind=link}