Robust Hydraulic Seal for Coal Mine Cylinder Applications

• Customization: Available
• Material: NBR
• Usage: Engine, Transmission, Rear Axle, Gearbox
• Type: Haplotype
• Speed: High Speed
• Pressure: Pressure Type
• Lip: Composite Lip
• Standard: Standard, Nonstandard
• Applicable Temperature: From Minus 60 Degrees to Plus 300 Degrees
• Scope of Application: Various Chemical Substances
• Custom Specifications: Customizability Can Reach up to 500 Centimeters.
• Transport Package: Packaging Bag, Cardboard Box
• Trademark: Anran
• Origin: China Hebei
• HS Code: 4016931000
• Production Capacity: 100000pieces/Year

Product Description

Product Description

Oil seals, also known as rotary shaft seals, play a vital role in protecting machinery by effectively sealing in grease and liquids, while keeping dirt at bay. Serving as a crucial component in any rotating or moving assembly, these seals harmonize the space between stationary and moving parts within mechanical equipment, ensuring smooth and reliable operation. Typically, an oil seal is comprised of three integral elements:
A sealing material (rubber component), metal casings, and springs form a versatile sealing assembly, designed for durability and performance.
Our diverse range of oil seals includes types such as TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, TC4, and more, catering to various sealing needs.
We offer an extensive selection of high-quality rubber materials for oil seal manufacturing, ensuring optimal performance across a broad spectrum of operational conditions. These advanced rubber materials are engineered to withstand challenging chemical environments and extreme temperature variations, providing reliability whether in scorching heat or icy cold.
[Oil seal material introduction]

Ding Rubber (NBR)	Temperature resistance of 100ºC, good oil resistance, wear resistance, anti-aging, good sealing effect.
silica gel (VMQ)	Temperature resistance of 200ºC, general oil resistance, high temperature resistance, good waterproof, non-toxic.
Fluorogel (FKM)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure resistance, corrosion resistance.
ethylene-propylene-diene misch-polymere (EPDM)	Temperature resistance of 150ºC, general oil resistance, corrosion resistance.
(PTFE)	Temperature resistance of 280ºC, good oil resistance, wear resistance, high pressure and corrosion resistance.
polyurethane (PU)	Temperature resistance of 90ºC, good oil resistance, wear resistance.

For custom and non-standard oil seal requirements, we provide solutions utilizing premium materials like fluorine rubber, silicone rubber, fine rubber, and propylene rubber, tailored to meet specific needs.

[Oil seal core structure type]

Single lip structure	Single channel sealing lip for low pressure reciprocating motion (e. g. automotive crankshaft oil seal)
Double lip structure	Two upper and lower sealing lips, a main seal (contact shaft), a secondary seal (dust), often used in high pressure environment
Composite lip structure	Main lip + dust lip + buffer spring (like type NOK TCV), can withstand both radial and axial forces
labyrinth packing	Multi-channel ring groove design to block oil by throttling effect (suitable for high-speed rotating axis)
Seal the oil swing ring	Metal ring rotating centrifugal oil swing with shaft (commonly used in gearbox gearbox)

[Key structural components of the oil seal]

Component name	Material selection	function declaration
seal(ing)lip	NBR/FKM/PTFE	Main seal surface, the contact shaft forms a dynamic seal
spring	Stainless steel / carbon steel	Provide lip pretension to compensate for wear
skeleton	PA6/PC	Fixed the sealing lip shape and transfer the mounting stress
Dust-proof lips	polyurethane elastomer	Blocking the entry of solid impurities (optional)
Self-lubricating coating	plumbago/PTFE	Reduce the friction coefficient and extend the life life

[Oil seal and sealing principle]
The oil seal operates by forming an effective oil film through the lip's contact with the shaft, achieving superior dynamic sealing. This is accomplished by leveraging the power of spring pressure and material elasticity. During rotation, the lip's contraction from frictional heat intensifies the seal, while at rest, it maintains contact to ensure a continuous seal.

[Oil seal application fields]
Oil seals are indispensable in engines, gearboxes, hydraulic pumps, reducers, and other machinery, excelling in high-temperature, high-speed, and corrosive environments. They are particularly valuable when traditional rubber seals fail, as PTFE oil seals offer remarkable longevity, lasting up to 20 times longer, and provide superior sealing capabilities for diverse media, including water, acids, and gases.

[Oil seal selection and installation]
When selecting oil seals, it is essential to evaluate factors like rotation speed, temperature, pressure, and shaft medium characteristics comprehensively. Ensuring proper installation involves positioning the shaft vertically to prevent tilting, and applying grease to the lip to minimize dry grinding, enhancing longevity and performance.
Product superiority:

1. Our commitment to excellence is reflected in our meticulous selection of superior materials and advanced manufacturing processes, resulting in parts that deliver exceptional performance and unwavering stability, backed by state-of-the-art automation.
2. Our products are renowned for their remarkable elasticity and outstanding wear resistance, maintaining stability even under the harshest environmental conditions.
3. With a team of highly skilled technical experts, we offer customized solutions tailored to our customers' unique needs, ensuring timely and effective responses to challenges.
4. Adhering to stringent quality control systems, we have established ourselves as a preferred direct or indirect supplier to leading enterprises worldwide, ensuring our products meet the highest standards.