Versatile Hydraulic Seal for Cylinders in Coal Mining 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 crucial role in preventing grease, liquids, and dirt from entering mechanical systems. As pivotal components, they stabilize the interface between stationary and dynamic parts of machinery. An oil seal typically comprises three essential elements that ensure its efficiency:
A sealing material (rubber component), metal casings, and springs. Together, these components create a versatile sealing solution that meets diverse demands.
Our extensive range includes diverse types such as TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, among others, each designed to cater to specific sealing needs.
We offer a broad spectrum of rubber materials tailored for oil seal manufacturing, ensuring they withstand various operating conditions. These high-performance rubbers are rigorously engineered to resist an array of chemicals and endure extreme temperatures, from the highest to the lowest.
[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.

We specialize in manufacturing customizable non-standard oil seals using premium materials such as fluorine rubber, silicone rubber, fine rubber, and propylene rubber, ensuring a perfect fit for any unique requirement.

[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 crafts an oil film via contact between the lip and the shaft, achieving dynamic sealing through precise spring pressure and material elasticity. During rotation, the lip contracts due to frictional heat, significantly enhancing the sealing effect; whereas, in a stationary state, it remains in contact, preserving the seal effectively.

[Oil seal application fields]
These seals find extensive usage across engines, gearboxes, hydraulic pumps, reducers, and other machinery. Particularly, they excel in environments with high temperatures, high speeds, and corrosive media, where conventional rubber seals fall short. Notably, PTFE oil seals offer up to 20 times the lifespan of traditional seals and are adept at sealing water, acid, gas, and more.

[Oil seal selection and installation]
To ensure optimal performance, consider the shaft's rotation speed, temperature, pressure, and the characteristics of the medium. It's crucial to install the shaft vertically to avoid tilting and to apply grease to the lip, minimizing dry grinding.
Product Superiority:

1. We meticulously choose the finest materials to craft parts that embody high performance and stability, complemented by state-of-the-art automation technology.
2. Our products are engineered with exceptional elasticity and wear resistance, ensuring unparalleled stability even in the harshest environments.
3. Our team of seasoned technical experts is dedicated to customizing products to meet specific customer needs and providing prompt, innovative solutions.
4. Adhering strictly to our quality control protocols, we've established ourselves as direct or indirect suppliers to numerous prestigious enterprises globally.