Durable Hydraulic Seal for Cylinders in Coal Mining Operations

• 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, are indispensable in preventing the leakage of grease, liquids, or dirt. As a vital component of any rotating and moving assembly, the oil seal plays a crucial role in stabilizing the space between stationary and moving parts within mechanical equipment. These seals typically consist of three essential elements:
A sealing material (rubber component), robust metal casings, and durable springs. This versatile assembly ensures a comprehensive sealing solution.
Our extensive range includes various types such as TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and TC4, among numerous others.
We provide an extensive array of high-quality rubber materials for oil seal manufacturing, tailored to meet diverse operating conditions. These exceptional materials are engineered to withstand a wide range of chemicals and endure extreme temperatures, from searing heat to frigid 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.

Non-standard oil seals can be customized using premium materials such as fluorine rubber, silicone rubber, fine rubber, and propylene rubber, catering to specific needs and enhancing performance.

[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 forms an oil film through lip and shaft contact, achieving dynamic sealing with spring pressure and material elasticity. During rotation, the lip contracts due to frictional heat, enhancing sealing effectiveness; in a stationary state, it remains in contact to ensure continuous sealing integrity.

[Oil seal application fields]
Our oil seals find extensive application in engines, gearboxes, hydraulic pumps, reducers, and other equipment, particularly under challenging conditions involving high temperatures, swift speeds, corrosive media, or where traditional rubber oil seals have faltered. For example, PTFE oil seals exhibit longevity up to 20 times that of standard oil seals and proficiently seal water, acid, gas, and more.

[Oil seal selection and installation]
Considerations for the shaft include rotation speed, temperature, pressure, and medium characteristics. For optimal installation, ensure the shaft is vertical to prevent tilting and apply grease to the lip to minimize dry grinding, ensuring seamless operation.
Product Superiority:

1. We meticulously select the finest materials, producing parts that deliver exceptional performance and stability, all while being equipped with cutting-edge automation technology.
2. Our products excel in elasticity and wear resistance, guaranteeing stability and reliability even in the harshest environments.
3. Backed by a comprehensive team of technical experts, we offer tailor-made solutions for our customers, providing customized products and timely, effective solutions.
4. Adhering strictly to our rigorous quality control system, we have earned our reputation as a trusted supplier to many esteemed enterprises across the globe.