Heavy-Duty Hydraulic Seal for Coal Mining and Chemical 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 pivotal role in safeguarding mechanical systems. These vital components are engineered to efficiently seal grease, liquids, and shield against dirt intrusion. Essential for any rotating or moving assembly, the oil seal expertly maintains the balance between stationary and moving parts in machinery. Typically, an oil seal is engineered with three fundamental elements:
A high-quality sealing material (rubber component), durable metal casings, and robust springs. It is a versatile, high-performing sealing assembly.
Our product portfolio includes a comprehensive range of types such as TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, among others, catering to various industrial needs.
We provide an extensive array of premium rubber materials for oil seal manufacturing, guaranteeing adaptability to a wide array of operating environments. These exceptional materials are designed to withstand diverse chemical exposures and temperature extremes, delivering unrivaled performance whether in high heat or frigid conditions.
[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.

Tailored non-standard oil seals can be crafted using top-tier materials like fluorine rubber, silicone rubber, fine rubber, and propylene rubber, ensuring exceptional performance and durability.

[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 ingeniously creates a protective oil film through the interaction between its lip and the shaft. This dynamic sealing mechanism leverages spring pressure and material elasticity for superior sealing. During rotation, the lip contracts due to frictional heat, further intensifying the seal's effectiveness. When at rest, it maintains precise contact, ensuring a dependable and secure seal.

[Oil seal application fields]
Our oil seals are indispensable in engines, gearboxes, hydraulic pumps, reducers, and other advanced equipment. Especially in conditions of extreme temperatures, rapid speeds, or corrosive media, where standard rubber oil seals fall short. For example, our PTFE oil seals exhibit remarkable longevity, outlasting standard seals by up to 20 times, and are adept at sealing water, acids, gases, and other challenging media.

[Oil seal selection and installation]
Consideration of the shaft's rotational speed, operational temperature, pressure, and medium characteristics is crucial for optimal oil seal selection. Ensure vertical shaft installation to prevent tilting, and apply grease to the lip to minimize dry friction and enhance longevity.
Product Superiority:

1. Our commitment to excellence is reflected in our meticulous material selection, resulting in parts that deliver unrivaled performance, stability, and are enhanced with cutting-edge automation.
2. Boasting exceptional elasticity and wear resistance, our products guarantee stability and reliability, even in the harshest of environments.
3. Backed by a comprehensive team of seasoned technical experts, we offer product customization to meet customer specifications and provide prompt, effective solutions.
4. Our unwavering adherence to stringent quality control systems has earned us the status of a preferred supplier, directly or indirectly, to numerous esteemed enterprises worldwide.