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NBR FPM Oil Seal

Oil Seal referred to as a shaft seal or rotary shaft seal, is a specialized type of rubber seal used to prevent the leakage of lubricants, oils, or other fluids in rotating or reciprocating machinery. It is specifically designed to seal the gap between a rotating or moving shaft and the housing or component it passes through. 

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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 NBR FPM Oil Seals Advantages:

1. High Temperature Resistance: FPM seals can withstand a wide range of temperatures, both high and low. They remain effective even in environments with elevated temperatures, making them suitable for applications where other rubber materials might degrade or fail.

2. Chemical Resistance: FPM seals exhibit excellent resistance to a variety of chemicals, oils, fuels, acids, and solvents. This chemical resistance prevents the breakdown of the seal material when exposed to aggressive fluids commonly found in engines and other systems.

3. Fluid Compatibility: FPM seals maintain their integrity when in contact with various fluids, including engine oils, transmission fluids, hydraulic fluids, and coolants. This compatibility ensures consistent sealing performance over time.

4. Low Compression Set: Compression set refers to the ability of a material to return to its original shape after being compressed. FPM seals have low compression set characteristics, ensuring that they maintain an effective seal over prolonged periods of use.

5. Excellent Sealing Properties: FPM seals provide an effective barrier against fluid leakage, preventing oil, coolant, and other fluids from escaping the sealed area. This is crucial for maintaining proper fluid levels and system functionality.

6. Oil and Fuel Resistance: NBR seals exhibit excellent resistance to oils, fuels, and lubricants commonly found in engines and mechanical systems. They maintain their sealing integrity and mechanical properties even when in contact with these fluids.

7. Cost-Effectiveness: NBR seals are generally more affordable than some other sealing materials, making them a cost-effective choice for applications where high-temperature resistance or extreme chemical resistance is not the primary concern.

8. Versatility: NBR seals are available in a wide range of sizes and shapes, making them adaptable to various sealing applications, including shafts, bearings, and housings.

9. Good Wear Resistance: NBR seals offer reasonable wear resistance, ensuring that they can withstand the friction and abrasion that occurs during the operation of mechanical systems.

10. Compression Set Resistance: NBR seals have good resistance to compression set, meaning they can return to their original shape after being compressed, ensuring consistent sealing performance over time.

Product Parameters:

NBR FPM Oil Seal

Polyacrylate (ACM): Our ACM offer superior resistance to mineral oil, oxygen, and ozone. While they may not be the best choice for water applications, their resilience in other environments is unmatched.

Polychloroprene Rubber (CR): Known for its versatility, our Neoprene provide excellent resistance to ozone, aging, and chemicals. They maintain robust mechanical properties across a broad temperature spectrum.

Nitrile-Butadiene (NBR): Our NBR material are designed for environments with gasoline and aromatic solvents. With varying acrylonitrile content, they balance swell resistance and flexibility for optimal performance.

Hydrogenated NBR (HNBR): Engineered for superior air resistance, our HNBR material feature a hydrogenated process that enhances thermal stability and oxidation resistance.

Ethylene Propylene Rubber (EPDM): EPDM Oil seal are a terpolymer blend, offering excellent cross-linking capabilities for a wide range of applications.

Silicone Rubber (VMQ): Our silicone Oil seal are known for their insulating properties and physiological neutrality, making them ideal for sensitive environments.

NBR FPM Oil Seal

NBR FPM Oil Seal

Rubber 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;

NBR FPM Oil SealNBR FPM Oil Seal

NBR FPM Oil Seal Applications:

1. Engine Components: FPM oil seals are used in various engine components, including crankshafts, camshafts, and timing belts. They provide reliable sealing to prevent oil leaks and contamination while withstanding the heat generated by the engine.

2. Transmission and Gearbox: FPM oil seals are utilized in transmission and gearbox systems to prevent the leakage of transmission fluids and lubricants. Their high-temperature resistance and chemical compatibility make them suitable for these applications.

3. Exhaust System: FPM oil seals are employed in exhaust components such as turbochargers and exhaust gas recirculation (EGR) systems. They seal connections and prevent exhaust leaks, even in high-temperature environments.

4. Suspension Systems: FPM oil seals can be used in suspension components, such as fork seals in front forks. These seals prevent contaminants from entering the suspension system while maintaining performance under varying temperatures.

5. Wheel Hubs and Bearings: FPM oil seals are used in wheel hubs and bearings to prevent the ingress of water, dirt, and debris. They maintain the lubrication of these components while resisting wear and tear.

6. Hydraulic Systems: In motorcycles with hydraulic systems, such as brakes and clutches, FPM oil seals are used to prevent fluid leaks and ensure proper operation even in high-temperature conditions.

7. Exhaust System: NBR oil seals can be used to seal connections in the exhaust system, helping prevent exhaust leaks.

8. Crankcase and Oil Pan: NBR oil seals are used in the crankcase and oil pan areas to prevent oil leaks and maintain proper lubrication.

9. Bearings and Seals in General: NBR oil seals are used in a wide range of bearings, including wheel bearings and crankshaft bearings, to prevent the entry of contaminants and retain lubricants.

Products Video: 


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