Heavy-Duty Hydraulic Seal for Chemical Resistance in Mining

• 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 safeguarding mechanical assemblies. They effectively seal grease, liquids, or dirt in various applications. As a vital component, oil seals stabilize the space between stationary and moving parts within mechanical equipment. These high-performance seals are typically composed of three key elements:
A robust sealing material, typically a rubber component, reinforced by sturdy metal casings and resilient springs. This combination creates a highly versatile sealing assembly that adapts to diverse requirements.
Our offerings encompass a wide array of types, including but not limited to TC, TG, TA, SA, SB, SC, DC, MC, MG, TCV, TCN, and the advanced TC4.
At Ningbo Zhongmu Rubber Products Co., Ltd, we present an impressive variety of rubber materials for oil seal manufacturing. These materials cater to various operational demands, capable of withstanding a broad spectrum of chemicals and extreme temperatures, from soaring highs to freezing lows.
[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 crafting customizable non-standard oil seals using premium materials such as fluorine rubber, silicone rubber, fine rubber, and propylene rubber, offering tailored solutions 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 ingenious oil seal operates by forming an oil film at the contact point between its lip and the shaft. This dynamic sealing is achieved through the harmonious action of spring pressure and material elasticity. During rotation, the lip contracts due to frictional heat, amplifying the sealing efficiency, while in a stationary state, it maintains robust contact to ensure an unwavering seal.

[Oil seal application fields]
Our oil seals are extensively utilized in a variety of critical applications, from engines and gearboxes to hydraulic pumps and reducers. They are especially effective in challenging scenarios, including high temperatures, rapid speeds, and corrosive environments. Our PTFE oil seals are exemplary, boasting a lifespan up to 20 times longer than conventional seals with the capability to seal water, acid, gas, and other challenging media.

[Oil seal selection and installation]
For optimal performance, it is essential to consider the rotation speed, temperature, pressure, and medium characteristics of the shaft. Ensuring the shaft is installed vertically prevents tilting. Applying grease to the lip is recommended to minimize dry friction and enhance longevity.
product superiority:

1. We take immense pride in our rigorous material selection process and the precision manufacturing of parts, resulting in high-performance and stable products equipped with cutting-edge automation technology.
2. Our products are renowned for their outstanding elasticity and wear resistance, delivering unwavering stability even in the most demanding environments.
3. With a dedicated team of technical experts at our disposal, we offer tailored product solutions and prompt assistance to meet our customers' unique requirements.
4. Adhering to our stringent quality control system, we have established ourselves as a preferred supplier to numerous prestigious enterprises around the globe.