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Double Lip Oil Seal

​A double lip oil seal is a type of rotary shaft seal designed to provide enhanced sealing performance compared to single lip seals. It features two sealing lips instead of one, which improves the ability to prevent the leakage of fluids and contaminants in rotating shaft applications. These seals are commonly used in various industries and equipment where effective sealing is crucial to maintain system integrity and prevent lubricant leakage.

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Basic Info:

1.Raw-Material Brand: 

 DuPont (US) / Dow Corning (Germany) / Bayer (Germany) / 3M


We have more than 7000 size different oil seal size mold in warehouse 

3.Material Type: 

NBR / FKM / Silicone / EPDM / HNBR / ACM / Neoprene...etc.



5.Products Application

Metallurgical, chemical, engineering, construction, mining, petroleum machinery


Black, white, red, green, or any customize


Temperature from -60° C to +220° C in different material

8.Factory Certificate

IATF 16949:2016, ISO9001, ISO14001 certificated

9.Product Certificate

KTW-W270/ Watermark/ LFGB / RoHs/REACH/FDA

Boman Double Lip Oil Seals Advantages:

1. Upgraded Spillage Insurance: Twofold lip oil seals give an additional layer of security against liquid spillage contrasted with single lip seals. The presence of two fixing lips makes a twofold boundary, diminishing the possibilities of liquid getting away and keeping pollutants from entering the framework.

2. Expanded Foreign substance Rejection: The double lip plan of these seals assists with working on the avoidance of toxins, like soil, residue, water, and different particles. The subsequent lip goes about as an extra hindrance, diminishing the gamble of defilement and upgrading the general exhibition and life expectancy of the framework.

3. Further developed Oil Maintenance: Twofold lip oil seals are successful in holding ointments inside the framework. The double lip configuration assists with limiting grease misfortune, guaranteeing that the framework remains appropriately greased up. This assists with lessening rubbing, wear, and intensity age, prompting further developed effectiveness and longer part life.

4. Better Assurance against Shaft Development: Twofold lip oil seals give upgraded insurance against shaft development or misalignment. The subsequent lip goes about as a reinforcement seal, giving extra solidness and forestalling liquid spillage in the event of shaft development or misalignment.

5. Flexibility and Similarity: Twofold lip oil seals are accessible in different sizes, materials, and plans, making them adaptable and viable with various applications and working circumstances. They can be altered to meet explicit prerequisites, guaranteeing ideal fixing execution.

6. Simple Establishment: Twofold lip oil seals are somewhat simple to introduce, like single lip seals. They can be introduced utilizing standard press-fit or snap-fit techniques, saving time and exertion during get together or support methodology.

7. Financially savvy Arrangement: Notwithstanding offering upgraded fixing execution, twofold lip oil seals are as yet a practical arrangement. They give added security and life span to the framework, assisting with lessening personal time, upkeep costs, and the requirement for continuous seal substitutions.

8. Temperature and Synthetic Opposition: Twofold lip oil seals are intended to endure many temperatures and oppose openness to different synthetic compounds and liquids. They can keep up with their fixing respectability in both high and low-temperature conditions and oppose the impacts of oils, fills, solvents, and different synthetics normally tracked down in modern applications.

Product Parameters:

Double Lip Oil Seal

Double Lip Oil Seal

Double Lip Oil Seal

Double Lip Oil Seal

Double Lip Oil Seal Process Flow Chart: 

steps The process flow Process flow name Machinery and equipment/measuring equipment features Special features symbols note
product product
Rubber material visual / / /
IQC Hardness tester hardness /
Tensile machine Tensile strength / /
Tensile machine elongation / /
hydrometer The proportion of / /
Aging test chamber The compression permanent deformation / /
3 Mixing mixer / Material thicknessmm /
4             IQC rheometer TS2 / /
TS50 / /
TS90 / /
Hardness tester hardness /
5 Cutting edge
Cutting machine / Is long /
Material weight /

moulding 300 t hot molding machine, automatic monitoring
/ The molding pressure (kgcm2)
/ Molding time
/ Mold temperature
visual appearance / /
Hardness tester hardness /
The projector/caliper size /
7 IPQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
8 deflashing visual appearance / /
Automatic disassembly machine / speed /
/ time /
9 QC Scissors/knife appearance / /

steps The process flow Process flow name Machinery and equipment/measuring equipment features Special features symbols note
product process
10 FQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
11 cleaning Plastic basket / / / Manual cleaning
/ / /
/ / /
12 Post curing The oven / time
/ The temperature
13 Packing Electronic says Single - / /
Baling press The number of / /
The printer The labe / /
visual The cartons / /
14 OQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
visual check / /
visual weighing / /
15 Warehousing
transport cart Delivery note / /
Courier / /
Put in storage / /
note      1.“◇”Said inspection、“□”Said processing、“↓”Said handling、“△”Said storage、“▲”Said reworking/repairing
2.“★”Said product function and process of key special feature symbol;

Double Lip Oil SealDouble Lip Oil Seal

Oil Seal Applications:

Oil seals are used in various applications across different industries:

1. Automotive Industry: Double lip oil seals are widely used in the automotive industry for sealing applications in engines, transmissions, axles, and other critical components. They provide enhanced protection against fluid leakage and contaminants, ensuring optimal performance and longevity of automotive systems.

2. Industrial Machinery: Double lip oil seals are commonly used in industrial machinery, including pumps, motors, gearboxes, and rotating equipment. They help to prevent lubricant leakage

3. Aerospace and Aviation Seal: Oil seals find applications in aircraft engines, turbines, and hydraulic systems. They help seal rotating shafts, ensuring proper lubrication, preventing fluid leakage, and maintaining optimal performance in aerospace applications.

4. Power Generation Seal: Oil seals are utilized in power generation equipment such as generators and turbines. They help seal shafts, preventing oil leakage and maintaining lubrication for efficient power generation.

5. Agricultural Machinery Seal: Oil seals are employed in agricultural machinery, including tractors, harvesters, and irrigation systems. They provide sealing in various rotating shafts and components, ensuring proper lubrication and preventing the entry of contaminants.

6. Construction and Mining Equipment: Oil seals are used in construction machinery, such as excavators, loaders, and bulldozers, as well as in mining equipment. They provide sealing for rotating shafts in engines, transmissions, and hydraulic systems, preventing oil leakage and ensuring reliable operation in demanding conditions.

7. Marine Applications: Oil seals are utilized in marine engines, propellers, and stern tubes. They provide sealing to prevent water ingress and oil leakage in marine propulsion systems.

8. Oil and Gas Industry Seal: Oil seals are used in pumps, compressors, and drilling equipment in the oil and gas industry. They help seal rotating shafts, preventing fluid leakage and maintaining operational efficiency in these critical applications.

9. Industrial Gearboxes: Gearboxes in various applications, such as conveyor systems, cranes, and heavy-duty machinery, utilize double lip oil seals to prevent lubricant leakage and protect gears and bearings

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